WellTracer® Operations Manual WT-5
Contents
Introduction ............................................................................................................................................ 6
Shipping .................................................................................................................................................. 7
Containers........................................................................................................................................... 7
What is shipped................................................................................................................................... 7
Container 1...................................................................................................................................... 7
Container 2...................................................................................................................................... 7
Receiving the WellTracer Components .................................................................................................... 8
WellTracer® Unit.............................................................................................................................. 8
Co2 Injection Manifold..................................................................................................................... 8
Wellhead Manifold .......................................................................................................................... 8
Lift Gas Manifold ............................................................................................................................. 9
Miscellaneous Cables....................................................................................................................... 9
Internal Electrical Components ........................................................................................................ 9
Internal Fittings and Tubing ........................................................................................................... 10
Internal Filters ............................................................................................................................... 10
Purge............................................................................................................................................. 10
Digital Scale ................................................................................................................................... 11
High Pressure Waste Outlet ........................................................................................................... 11
Low Pressure Waste Outlet............................................................................................................ 11
Manifold Adapter .......................................................................................................................... 11
Logistical Issues ..................................................................................................................................... 12
Transporting the WellTracer® Unit................................................................................................. 12
Powering the WellTracer® ............................................................................................................. 12
Laptop Computer........................................................................................................................... 12
Locating the WellTracer® ............................................................................................................... 12
Gas Cylinders ................................................................................................................................. 12
Digital Scale ................................................................................................................................... 12
Operational Issues................................................................................................................................. 13
Well Modeling Data ....................................................................................................................... 13
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WellTracer® Operations Manual WT-5
Fluid/Gas Discharge ....................................................................................................................... 13
Data Acquisition Software.............................................................................................................. 13
H2S Monitoring ............................................................................................................................. 13
Connecting the WellTracer® Components.............................................................................................. 14
WellTracer® Unit Overview.................................................................................................................... 14
Conducting a WellTracer® Survey .......................................................................................................... 15
Figure 9 – WellTracer® Unit Front Panel............................................................................................. 15
START-UP PROCEDURE .......................................................................................................................... 16
Electrical............................................................................................................................................ 16
Figure 10 ....................................................................................................................................... 16
Making Field Connections.................................................................................................................. 17
Field Connections .......................................................................................................................... 17
Figure 9 – WellTracer Unit ............................................................................................................. 17
Figure 9 WellTracer Unit ................................................................................................................ 18
Close the following ........................................................................................................................ 18
Figure 10 – Well Head Manifold ..................................................................................................... 19
Figure 11-Nitrogen Regulator
Figure 11A-Nitrogen / Purge Manifold ...................... 19
Figure 12 – Purge Manifold............................................................................................................ 20
Figure 13-Manifold Schematic ....................................................................................................... 20
Figure 12– WellTracer Unit Purge Manifold.................................................................................... 21
Figure 14 – CO2 Manifold .............................................................................................................. 21
Figure 15 – Lift Gas Manifold ......................................................................................................... 22
Important Information about Field Connections ................................................................................ 23
Initiate System Flow .......................................................................................................................... 23
Figure 10 – Well Head Manifold ..................................................................................................... 23
Figure 9 WellTracer Unit ................................................................................................................ 24
Initiate Data Acquisition ........................................................................................................................ 24
Figure 16 – WellTracer® Shortcuts Panel .................................................................................... 25
Figure 17 – WellTracer® Data Logger Control Panel.................................................................. 25
Figure 18 – WellTracer® Live Plot Control Panel ................................................................................. 26
Injecting CO2 into the Well ................................................................................................................ 27
Prepare the CO2 Cylinder ................................................................................................................... 27
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WellTracer® Operations Manual WT-5
Figure 19 CO2 Injection Manifold Schematic .................................................................................. 28
Inject the CO2 .................................................................................................................................... 29
Figure 15 – Lift Gas Manifold ............................................................................................................. 29
Disconnect CO2 Manifold Connections ............................................................................................... 29
Monitoring the WellTracer® Survey.................................................................................................. 30
Figure 9 WellTracer Unit ................................................................................................................ 30
Figure 9-WellTracer Unit................................................................................................................ 32
Shut-down Procedure........................................................................................................................ 32
Terminate Data Acquisition ............................................................................................................... 32
Terminate System Flow / Remove Field Connections ......................................................................... 32
Figure 10 – Well Head Manifold ..................................................................................................... 33
Removing Lift Gas Connections.......................................................................................................... 33
Extracting the WellTracer® Survey......................................................................................................... 34
Extracting a WellTracer® Data File ..................................................................................................... 34
Extracting WellTracer® Data to a WellTracer® Survey ........................................................................ 34
Extracting a WellTracer® Data File ..................................................................................................... 35
Extracting WellTracer® Data to a WellTracer® Survey ........................................................................ 35
Care and Cleaning of the WellTracer®.................................................................................................... 36
Maintaining the Safety Dump ............................................................................................................ 36
Maintaining the Dual Filter System .................................................................................................... 36
Isolating a Filter................................................................................................................................. 36
Figure 21 – Dual Filter System........................................................................................................ 36
Changing the Filter Media.................................................................................................................. 37
Maintaining the Separator................................................................................................................. 37
Figure 22 –WellTracer Unit Separator ............................................................................................ 37
Figure 23 –WellTracer Unit Rupture Disk Assembly ........................................................................ 38
Replacing the Rupture Disk................................................................................................................ 38
Field Cleaning the Separator Unit ...................................................................................................... 39
Analyze the WellTracer® Survey Data .................................................................................................... 40
Information on WinGLUE®..................................................................................................................... 42
QHSE Overview .................................................................................................................................... 43
Equipment......................................................................................................................................... 43
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WellTracer® Operations Manual WT-5
Atmospheres ..................................................................................................................................... 43
Pressures........................................................................................................................................... 44
Temperatures.................................................................................................................................... 44
Environmental................................................................................................................................... 45
Obtaining Replacement Parts ............................................................................................................ 45
Return the WellTracer® for Repair ..................................................................................................... 45
On-site Service .................................................................................................................................. 45
Contacting AppSmiths ....................................................................................................................... 45
Appendix 1: MSDS (Material Safety Data Sheets)................................................................................... 46
CO2 (Carbon Dioxide) ........................................................................................................................ 46
1. Chemical Product and Company Identification ........................................................................... 46
2. Composition, Information on Ingredients................................................................................... 46
3. Hazards Identification ................................................................................................................ 46
4. First Aid Measures ..................................................................................................................... 48
5. Fire Fighting Measures ............................................................................................................... 48
6. Accidental Release Measures ..................................................................................................... 49
7. Handling and Storage................................................................................................................. 49
8. Exposure Controls, Personal Protection...................................................................................... 50
9. Physical and Chemical Properties ............................................................................................... 50
10. Stability and Reactivity ............................................................................................................. 51
11. Toxicological Information......................................................................................................... 51
12. Ecological Information ............................................................................................................. 51
13. Disposal Considerations ........................................................................................................... 51
14. Transport Information.............................................................................................................. 52
15. Regulatory Information ............................................................................................................ 52
16. Other Information.................................................................................................................... 52
N2 (Nitrogen) .................................................................................................................................... 53
1. Chemical Product and Company Identification ........................................................................... 53
2. Composition, Information on Ingredients................................................................................... 53
3. Hazards Identification ................................................................................................................ 53
4. First Aid Measures ..................................................................................................................... 55
5. Fire Fighting Measures ............................................................................................................... 55
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WellTracer® Operations Manual WT-5
6. Accidental Release Measures ..................................................................................................... 56
7. Handling and Storage................................................................................................................. 56
8. Exposure Controls, Personal Protection...................................................................................... 56
9. Physical and Chemical Properties ............................................................................................... 57
10. Stability and Reactivity ............................................................................................................. 58
11. Toxicological Information......................................................................................................... 58
12. Ecological Information ............................................................................................................. 58
13. Disposal Considerations ........................................................................................................... 58
14. Transport Information.............................................................................................................. 58
15. Regulatory Information ............................................................................................................ 58
16. Other Information.................................................................................................................... 59
Appendix 2: Equipment Safety Ratings .................................................................................................. 60
Appendix 3: Safety Dump ...................................................................................................................... 61
Safety Dump...................................................................................................................................... 61
Safety Dump Bypass Valves
Safety Dump Bypass Valves 2 .............................................. 62
Appendix 4: Sample Forms .................................................................................................................... 63
Sample WellTracer® Site Worksheet .................................................................................................. 63
Sample WellTracer® BJSA.................................................................................................................. 64
Figure 23 – Device Manager .............................................................................................................. 65
Appendix 6: Additional System Illustrations .......................................................................................... 66
Figure 24 – Filter Exploded View........................................................................................................ 66
Appendix 7: Rupture Disk Assembly...................................................................................................... 67
Appendix 8: Electrical Compartment..................................................................................................... 68
WellTracer® Electronics Compartment .............................................................................................. 68
Appendix 9: Data Logger Manual Reset ............................................................................................... 69
Appendix 10: WellTracer® Equipment Specifications ............................................................................ 69
The WellTracer® unit is designed to be resistant to environments but is not completely waterproof nor
dustproof.Appendix 11: Recommended Toolkit ................................................................................. 69
Appendix 11: Recommended Toolkit ................................................................................................. 70
Appendix 12: Verifying Field Data in WinGLUE®.................................................................................... 71
Figure 24: Well Test Panel ................................................................................................................. 71
Figure 25: Lift Gas Properties Panel ................................................................................................... 72
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WellTracer® Operations Manual WT-5
Introduction
WellTracer® offers a low cost method to quickly and reliably determine lift gas entry point (s) without
well intervention.
•
•
•
Detect the presence of multiple lift points
Identify depth of operating valve(s)
Detect injection gas leaks into production tubing
WellTracer® complements a well test by providing verification of the wells operation during stable
production. A change in lift depth, multiple lift depths, or tubing leaks can be identified at a glance.
WellTracer® is suitable for permanent hook-up at a well test separator and can be one step of automatic
well testing.
AppSmiths recommends reading this manual before attempting to conduct a WellTracer®
Survey
Please contact AppSmiths if on-site training is required.
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WellTracer® Operations Manual WT-5
Shipping
Containers
The WellTracer® is shipped in two (2) containers, similar to those shown below.
What is shipped
Container 1
o
WellTracer® Unit.
Container 2
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
o
CO2 Injection Manifold
Well Head Manifold
Lift Gas Manifold
Purge Regulator Unit
50’ Transducer Cable (x 9)
Serial Communications Cable (x 1)
Nitrogen Regulator
WellTracer Waste Outlet Valve
½” x ¼” Female Quick Connect Manifold Adapter
½” x ½” Quick Connect Adapter
Weight Scale with Power Adapter and Control Panel
90o ½” x ¼” Female Quick Connect Manifold Adapter
Atex Explosion Proof Receptacle with Breaker
¼” x 3’ Stainless Steel Hose and Regulator Assembly
¼” x 25’ Stainless Steel Hose (2)
¼” x 50’ Stainless Steel Hose (4)
¼” x 100’ Stainless Steel Hose (3)
¼” x 100’ Stainless Steel Hose for Purge Unit (1)
½” x 50’ Stainless Steel Hose (1)
½” x 100’ Stainless Steel Hose (1)
Additional Supplies can be ordered and shipped as needed.
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WellTracer® Operations Manual WT-5
Receiving the WellTracer Components
•
Once the unit has arrived, open each container shipped and inspect the components for damage
or wear.
WellTracer® Unit
•
•
•
Ensure WellTracer Unit shows no sign of damage or wear.
Ensure that all gauges and instruments are intact and show no sign of damage or wear. Ensure
all external valves show no sign of damage or wear and open/close fully with minimal exertion.
Ensure equipment power cords show no sign of damage or wear.
Co2 Injection Manifold
•
Ensure CO2 Injection Manifold shows no sign of damage or wear. Ensure all fittings are properly
tightened.
Wellhead Manifold
•
Ensure Well Head Manifold shows no sign of damage or wear. Ensure all fittings are properly
tightened.
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WellTracer® Operations Manual WT-5
Lift Gas Manifold
•
•
Ensure CO2 Injection Manifold shows no sign of damage or wear.
Ensure all fittings are properly tightened.
Miscellaneous Cables
•
•
Miscellaneous Cables (¼” & ½” Drain, WH ¼”, Serial (RS-232), Power).
Ensure all Data Acquisition and Serial (RS-232) cables show no sign of damage or wear.
Internal Electrical Components
•
Ensure all internal Electrical WellTracer® components show no sign of damage or wear.
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WellTracer® Operations Manual WT-5
Internal Fittings and Tubing
•
Ensure all internal WellTracer® components show no sign of damage or wear.
Internal Filters
•
•
Ensure all internal WellTracer® components show no sign of damage or wear.
Ensure internal filters are suitable for use. (Replace if necessary).
Purge
•
•
•
•
•
Inspect Purge Indicator & Purge Inlet Valve for cracks or loose fittings.
Check to insure valve caps are in place and free of damage.
Inspect mounting bolts to insure they are properly tightened.
Inspect back side of purge for loose or missing parts.
Verify Purge vent is not missing parts.
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WellTracer® Operations Manual WT-5
Digital Scale
•
Inspect Digital Scale for damage.
High Pressure Waste Outlet
•
Inspect High Pressure Waste Outlet for damage.
Low Pressure Waste Outlet
•
Inspect Low Pressure Waste Outlet for damage.
Manifold Adapter
•
•
•
Inspect ½” Manifold Adapter x ¼” Q.C. for damage.
Inspect ½” Manifold Adapter x ¼” Q.C. for damage.
Inspect ½” Q.C. x ¼” Tubing Adapter for damage.
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WellTracer® Operations Manual WT-5
Logistical & Operational Issues
•
There are several logistical & Operational issues that affect running the WellTracer®.
Logistical Issues
Transporting the WellTracer® Unit
• The WellTracer® is comprised of at least two (2) containers.
• These containers will need to be received in a location where the WellTracer® can be checked
for damage due to transportation prior to commencing the WellTracer® Survey(s).
• The WellTracer® Unit will need to be transported to each well site.
• The WellTracer® Unit is rated 4X and is resistant to most environmental elements, such as rain,
snow or dust/sand. The WellTracer® is not submersible.
Powering the WellTracer®
• The WellTracer® Unit and subsequent laptop require a source of electric power.
• WellTracer® is equipped with a standard 600V Portable Oil and Water Resistant Submersible
Flexible Power Cord, Rated Class 1 Div. II Hazardous Locations.
Note: WellTracer® requires 100VAC-240VAC at 50-60 Hz for operation.
Note: For some locations a power cord adapter will be required.
Laptop Computer
• A laptop computer is required to view data during the WellTracer® Survey(s).
• A laptop computer is also required to transfer the WellTracer data to WinGLUE. The laptop
must have a serial (RS-232) port.
• The laptop computer can be provided with the WellTracer® or be acquired from a local source.
Locating the WellTracer®
• The WellTracer® and associated equipment are not certified intrinsically safe and therefore
must be located in a safe working zone. WellTracer® is resistant to precipitation and ambient
dust/dirt.
Gas Cylinders
• CO2 and Nitrogen must be obtained locally in sufficient quantities to perform the WellTracer®
Survey(s).
• The gas cylinders must be located within a reasonable distance to the safe working zone.
Digital Scale
• A digital scale is required to ensure the proper quantity of CO2 is injected into the well.
• The digital can be provided with the WellTracer® or be acquired from a local source.
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WellTracer® Operations Manual WT-5
Operational Issues
Well Modeling Data
• In order to predict the travel time of the CO2 and to analyze the collected data, the well data
must be modeled in WinGLUE®.
• WinGLUE® requires Mechanical data (Tubing String, Casing String, Flow-line), Installed Mandrels
and Valves, Lift Gas properties, Reservoir data, Well Test data, Deviation data and, if available,
current Gradient surveys to properly model a well.
• Once the well data has been validated and any necessary calibration has been performed on the
WinGLUE® model, the WellTracer® Prediction can be run.
•
The WellTracer® Prediction will calculate the time required for the CO2 to reach each
mandrel, giving a total travel time in the casing and a total travel time in the tubing.
Fluid/Gas Discharge
• The sample stream from the well will produce discharge gasses and discharge fluids.
• Suitable fluid waste containers must be located within a reasonable distance to the safe working
zone for discharge fluid collection.
• A typical WellTracer® Survey will produce five (5) to seven (7) gallons of discharge fluid.
• A well known to produce emulsion will result in greater amounts of discharge fluids. The
volume will be considerably less if the well has low productivity and/or high gas production.
Data Acquisition Software
• No software is required for data acquisition. WinGLUE® is required to view the data collected
during the WellTracer® Survey, to extract the collected data from the WellTracer® data logger
and to reset the data logger for a new WellTracer® Survey. WinGLUE® can be obtained from
AppSmiths.
H2S Monitoring
• No H2S monitoring equipment is provided with the WellTracer®.
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WellTracer® Operations Manual WT-5
Connecting the WellTracer® Components
•
•
•
•
All valves on the WellTracer® should be closed, with the exception of the ½ inch separator
discharge valve, when making initial field connections.
Ensure well head area is free from explosive and/or hazardous atmospheres.
Make all physical well connections prior to connecting the low pressure sampling hose.
If using a trailer mount bleed tank, be sure bleed tank is properly grounded to well head before
making any connections from the WellTracer®.
WellTracer® Unit Overview
•
•
•
•
The WellTracer® CO2 concentration LCD will display a 30 second count down when power is
applied.
The CO2 analyzer requires up to 30 minutes to fully warm up.
The system may display incorrect CO2 concentration levels during the warm up period.
The WellTracer® unit is calibrated and adjusted at the factory.
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WellTracer® Operations Manual WT-5
Conducting a WellTracer® Survey
Figure 9 – WellTracer® Unit Front Panel
1
B
2
3
4
5
7
A
C
D
E
F
G
6
8
H
I
9
10
J
L
K
References to physical connections to the WellTracer® or the well are denoted by numbers in
blue on the figures. The letters in blue on the figures represent gauges, valves and other
items of note on WellTracer®.
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WellTracer® Operations Manual WT-5
START-UP PROCEDURE
The WellTracer® unit should be located on a suitable work surface located in the safe work zone.
•
•
•
•
Verify field measurements correspond with WinGLUE® well model.
Put the well on test for the duration of the WellTracer® Survey.
Run 100VAC-240VAC at 50-60 Hz to WellTracer unit breaker and receptacle assembly.
Plug WellTracer unit plug into unit breaker and receptacle assembly, after unit is situated.
Electrical
•
•
WellTracer® unit comes equipped with a standard 200-250V 3 prong plug.
WellTracer® sends standard Switch Socket 16A with each shipment. (Figure 10)
Figure 10
Figure 10 requires a field connection by a qualified
electrical technician.
Cord for field connection not provided.
The R-Stahl 16A Switch Socket will not turn to the on
position unless plug is inserted.
Additional plug may be required to provide 120vac for
laptop.
•
•
•
WellTracer® unit may be grounded at any location, using a ground clamp provided by field
electrical technician. (Figure 9)
WellTracer® power switch is located upon the electrical enclosure door; turn this switch to the
on position to power up unit. (Figure 9 - Item #5)
Plug the WellTracer® unit into 100VAC-240VAC at 50-60 Hz power source. This should be done
as soon as the WellTracer® unit is situated to minimize the idle time while the analyzer warms
up.
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WellTracer® Operations Manual WT-5
Making Field Connections
Field Connections
NOTE: If using a bleed tank, ensure that the grounding strap is securely attached to the lowest
possible point on the nearest well head.
1. Connect ½ inch valve assembly to ½ inch quick connect on WellTracer® labeled H.P OUTPUT.
(Figure 9 – Item #2)
High Pressure Waste Outlet
Figure 9 – WellTracer Unit
1. Connect 1/2 inch High Pressure Waste Outlet valve assembly to 1/2 inch quick connector.
(Figure 9-Item K)
2. Connect 1/2 inch stainless steel hose to free end of ½ inch High Pressure Waste Outlet valve
assembly.
Make certain free end of hose is inserted into bleed tank or other discharge receptacle and secured to
ensure against accidental discharge of well fluids to surroundings.
3. Connect ¼ inch Low Pressure Waste Valve to ¼ inch quick connector on WellTracer® labeled L.P
OUTPUT. (Figure 9 – Item #L)
Low Pressure Waste Outlet
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WellTracer® Operations Manual WT-5
•
Connect ¼ inch stainless steel hose to ¼ inch Low Pressure Waste Outlet quick connector on
WellTracer® labeled L.P OUTPUT. (Figure 9 – Item #L)
Make certain free end of hose is inserted into bleed tank or other discharge receptacle and secured to
ensure against accidental discharge of well fluids to surroundings.
•
Connect ¼ inch stainless steel hose to ¼ inch quick connect on WellTracer® labeled H.P INPUT.
(Figure 9 – Item #J)
Figure 9 WellTracer Unit
Close the following
1. H.P. Blow Down to closed position (C) (Figure 9 – Item E)
2. H.P ADJ / S-O to closed position by turning needle valve (figure 9 – Item D)
3. H.P. / L.P S-O to closed position (C) (Figure 9 – Item G)
4. L.P ADJ to closed position by turning needle valve (figure 9 – Item F)
5. Flow Meter (Figure 9 – Item A)
6. L.P. Regulator (Figure 9 – Item H)
7. Ensure the swab valve on the well head is closed.
8. Ensure needle valve on top of well head is closed.
If a ball valve is installed in the top of the well head if is recommended that the ball valve be replaced
with a needle valve.
A needle valve helps reduce the amount of produced fluid, especially in high emulsion wells.
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WellTracer® Operations Manual WT-5
Figure 10 – Well Head Manifold
1. Remove plug (or cap) from needle valve fitting.
Ensure proper size adapter for connection of Well Head Manifold fitting (FIGURE 10A).
2. Connect ¼ inch hose from H.P INPUT to Well Head Manifold quick connect. (Identified by 3 on
Figure 10).
3. Connect the data extension cable from the W.H. terminal connection on the WellTracer® unit to
the WH Manifold connection. On the Front of the Electrical Enclosure.
Figure 11-Nitrogen Regulator
Figure 11A-Nitrogen / Purge Manifold
1. Connect N2 regulator to N2 cylinder. (Figure 11 – Item # 1)
2. Connect Nitrogen / Purge Manifold Quick Connect (Figure 11A – Item #1) to (Figure 11 – Item #
2) Female Quick Connect.
3. Connect 100’ Stainless Steel ¼” Purge Line to (Not Shown) to (Figure 11A – Item # 3).
4. Connect other end of 100’ Stainless Steel ¼” Purge Line (Not Shown) to Quick Connect located
on (Figure 12 – Item # 1).
5. Connect 36” stainless steel hose to Nitrogen / Purge Manifold. (Figure 11A – Item # 2) to (Figure
14 – Item # 2).
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WellTracer® Operations Manual WT-5
Figure 12 – Purge Manifold
6. Connect Purge Manifold Figure 12 Item # 1 to Unit Purge inlet male quick connect on the
WellTracer unit. (Figure 12 Item #2)
7. Connect Purge Vent to unit male quick connect on the WellTracer unit. (Figure 12 Item #3)
Figure 13-Manifold Schematic
8. Connect ¼” 100’ stainless steel purge hose to ¼” male quick connect to stainless steel hose and
regulator assembly. (Figure 13)
9. Connect opposite end of ¼” 100’ purge hose to purge regulator assembly. (Figure 13)
10. Start flow from nitrogen bottle to purge regulator assembly.
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WellTracer® Operations Manual WT-5
Figure 12– WellTracer Unit Purge Manifold
1. Do not adjust purge regulator assembly, it has been preset. (Figure12 – Item # 1)
2. For fast purge turn knob on (Figure 12 –Item #2) to open. After 1 min turn knob back to close.
Figure 14 – CO2 Manifold
1. Connect CO2 Injection Manifold fitting to CO2 cylinder. (Figure 14 – Item # 1)
2. Connect ¼ inch stainless steel hose from Purge and N2 Manifold to ¼ inch quick connect on CO2
Injection Manifold (Figure 14 – Item # 2).
3. Connect the black tagged data extension cable from the CO2 terminal connection on the
WellTracer® unit to the black tagged CO2 Injection Manifold connection (Figure 14 – Item # A).
4. Close all valves on CO2 Injection Manifold. (Figure 14)
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WellTracer® Operations Manual WT-5
Figure 15 – Lift Gas Manifold
1. Connect ¼ inch stainless steel hose from CO2 Injection Manifold quick connect to the Lift Gas
Manifold quick connect.
2. Connect the red tagged data extension cable from the LG terminal connection on WellTracer®
unit to the red tagged Lift Gas Injection Manifold connection.
3. Open valve on Gas Lift supply line.
1. Locate a valve on the Lift Gas injection line as close to the well head as possible. A ball valve
is preferred. Some installations have a valve on the casing opposite the Lift Gas injection
line. This is the ideal location for CO2 injection. If this valve does exist, be certain there are
no VR plugs before attempting to inject CO2.
2. Ensure the valve is functional and in the closed position.
3. Carefully remove the plug (or cap) from the valve fitting. Ensure proper size adapter for
connection of Lift Gas Manifold fitting (identified by Figure 15).
4. Connect the LG Manifold (Identified by figure 15) to the Lift Gas Manifold fitting (identified
by Figure 15).
5. Connect ¼ inch stainless steel hose from CO2 Injection Manifold quick connect (identified by
3 on Figure 15) to the Lift Gas Manifold quick connect (identified by 3 on Figure 15). A quick
connect with a cap is supplied with the Lift Gas Manifold to ensure safety while the manifold
is in use without a hose attached.
6. Connect the data extension cable from the LG terminal connection (Lift Gas terminal
connection identified on Electrical Enclosure) on WellTracer® unit to the red tagged Lift Gas
Injection Manifold connection (identified by 3 on Figure 15).
7. Open valve on Gas Lift supply line and ensure no leaks exist at field connections.
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WellTracer® Operations Manual WT-5
Important Information about Field Connections
•
•
•
It is recommended that a fluid level be shot before installing the Lift Gas Manifold. When the
fluid level is established prior to beginning a WellTracer® Survey the lowest lift point possible
can be determined. This may reduce the time required to perform the WellTracer® Survey if
fluid is covering any valves.
While collecting all possible data will result in the best analysis of the WellTracer® Survey, it is
understood that in some instances all data transducers may not be able to be connected due to
field conditions.
When positioning the WellTracer® unit the two most important data collection points are
the Lift Gas Manifold and the CO2 Injection Manifold.
The Lift Gas Manifold will record the lift gas injection pressure and temperature. This data is
useful in troubleshooting any anomalies during analysis.
The CO2 Injection Manifold captures the time that the CO2 is injected into the well and the
duration of the injection. This information can also be captured and noted manually.
When capturing the CO2 injection data manually, precision is of the utmost importance. The
validity of the WellTracer® Survey hinges on the accuracy of the injection time.
All required data can be entered on the site worksheet provided by WinGLUE® for use with
WellTracer®.
Initiate System Flow
1. Open the swab valve on the well head, counting the number of turns until the valve is
completely open.
Counting the number of turns allows the well to be choked back should the well happen to be
slugging or if heavy emulsion is encountered.
Figure 10 – Well Head Manifold
2. Open the valve on the Well Head Manifold (Identified by 2 on Figure 10) to send flow to the
WellTracer® unit.
3. Ensure no leaks exist at well head or WellTracer® unit.
4. Open ½ inch valve at front of WellTracer®.
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WellTracer® Operations Manual WT-5
This valve will be used to assist in regulating flow to the WellTracer® unit.
Figure 9 WellTracer Unit
5. Slowly open H.P ADJ S-O valve (Identified by D on Figure 9) until H.P gauge (System High
Pressure gauge identified by B on Figure 9) begins to show a pressure reading from the well
head.
6. Slowly open H.P. / L.P S-O valve (Identified by G on Figure 9) and L.P ADJ valve (Identified by F
on Figure 9), adjusting L.P REG (Identified by H on Figure 9) until L.P gauge (System Low
Pressure gauge identified by C on Figure 9) is set to 10 psig and the Flow Rate Meter (identified
by A on Figure 9) is set at 1.5 l/min. 10 psig is the required operating pressure and 1.5 l/min is
the required operating flow rate for the CO2 Analyzer.
7. The L.P ADJ valve and the H.P ADJ S-O valve should be fully open.
8. The ½ inch valve can be used to throttle the flow through the WellTracer® unit to ensure
sufficient pressure is achieved. Normal operations will typically see this valve 25% to 50% open.
9. The CO2 Analyzer should now be sampling the well gasses and the LCD should be displaying
concentration data.
Initiate Data Acquisition
•
•
WinGLUE® is the only software that will work with the WellTracer® unit.
The WellTracer® unit is connected to the computer’s Serial (RS-232) port. See Appendix 5:
Identifying Which COM Port for instructions on determining the COM port number assigned to
the computer’s serial (RS-232) port.
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WellTracer® Operations Manual WT-5
Figure 16 – WellTracer® Shortcuts Panel
Figure 17 – WellTracer® Data Logger Control Panel
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WellTracer® Operations Manual WT-5
Figure 18 – WellTracer® Live Plot Control Panel
1. Plug the WellTracer® unit Serial (RS-232) cable in to the laptop computer.
2. Ensure the Data Logger is reset to receive data.
a. Run WinGLUE®.
b. Click the
(Figure 16).
button on the toolbar to open the WellTracer® Shortcuts panel
c. Click the
button on the WellTracer® Shortcuts panel
to open the WellTracer® Data Logger Control panel (Figure 17).
d. Ensure that the COM Port (identified by 1 on Figure 18) matches the COM port of
the WellTracer® unit.
e. Click the
button (identified by 6 on
Figure 17) to clear any logged data and reset the Data Logger to receive new data.
WARNING: All existing data on the Data Logger will be erased! Ensure previous
WellTracer® Survey is extracted from the Data Logger prior to resetting the Data Logger.
1. A setup file must be specified for WinGLUE® to send to the Data Logger.
2. The setup files are located in the WinGLUE® installation directory unless a custom setup
file has been provided by AppSmiths.
3. Unless using a custom setup file the setup file will be named in the
welltracer_wtmodel#.8se where wtmodel# is the model number of the WellTracer®
unit as displayed on the sticker in the electronics compartment.
4. The complete path to the setup file must be entered on the WinGLUE® Settings panel
(File WinGLUE® Settings Configure WinGLUE WellTracer Settings).
3. Set the Data Logger switch (identified by 4 on Figure 9) to the ON position to begin
collecting data.
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WellTracer® Operations Manual WT-5
4. Allow the Data Logger to collect data for 5 minutes.
5. Verify that all connected channels are reading properly.
a. Click the
button on the WellTracer® Shortcuts panel
to open the WellTracer® Live Plot Control panel (Figure 15).
b. Ensure that the COM Port (identified by 1 on Figure 18) matches the COM port of
the WellTracer® unit.
c. Click the check boxes (identified by 2 on Figure 18) for all connected channels to
allow the channel to be displayed on the plot.
d. Click the
button (identified by 3 on Figure 18) to open the Real-Time
WellTracer® plot.
e. Verify that the channels are reporting realistic data. Pressures can be verified
against the analog gauges installed in the respective manifolds. CO2 concentration
can be verified by viewing the LCD display on the WellTracer® unit.
6. The WellTracer® unit is now collecting data for the WellTracer® Survey.
Injecting CO2 into the Well
•
The injection process is performed in two (2) steps, preparing the CO2 cylinder for injection and
injecting the CO2 into the well. The CO2 cylinder may be prepared while the WellTracer® unit is
in its warm up period.
Prepare the CO2 Cylinder
1. Determine the gas lift supply pressure. This may be obtained from the field-mounted gauge or
the Lift Gas Manifold analog gauge. With the current CO2 injection method WellTracer® will not
work with a gas lift supply pressure exceeding 1500 psig.
2. Ensure that the CO2 Injection Manifold has been connected as instructed in Making Field
Connections.
3. Ensure the N2 regulator has been connected as instructed in Making Field Connections.
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WellTracer® Operations Manual WT-5
Figure 19 CO2 Injection Manifold Schematic
A
B
D
1
F
C
2
E
G
C
O
2
N
2
4. Valves (Identified by A thru E on Figure 19) should be closed at this time.
5. Open the valve on the CO2 cylinder.
6. Determine the pressure of the CO2 cylinder by reading the pressure displayed on the gauge
located between the CO2 cylinder and valve B (Figure 19). Typically, the pressure of a 1000 psi
CO2 cylinder will be 800 to 1100 psig.
7. Over pressurize the CO2 cylinder as necessary.
a. The CO2 cylinder will need to provide sufficient pressure to overcome the Gas Lift supply
pressure. This is accomplished by adding nitrogen (N2) to the CO2 cylinder.
b. The CO2 cylinder pressure should be at least 500 psig greater than the Lift Gas supply
pressure. The CO2 cylinder should never be over pressurized to more than 2400 psig.
c. Open the valve on the N2 cylinder.
d. Adjust the regulator on the N2 cylinder to 3000 psig.
e. Slowly open the valve on the N2 regulator to begin flow of N2 into the CO2 cylinder.
f.
Slowly open valve A (Figure 19) and allow the N2 to over pressurize the CO2 cylinder to a
pressure at least 500 psig greater than the Gas Lift supply pressure, but not to exceed
2400 psig.
g. Once the desired pressure has been attained, slowly close valve A (Figure 19). Once
valve A (Figure 19) is closed, close the valve on the N2 regulator and the valve on the N2
cylinder.
8. Place the CO2 cylinder on the scale.
9. Turn on the scale and zero (tare) the scale.
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WellTracer® Operations Manual WT-5
Inject the CO2
Figure 15 – Lift Gas Manifold
1. Open valve A on the Lift Gas Manifold (Figure 15).
2. Open valve D (Figure 19) and then quickly open valves B and C (Figure 19).
NOTE: If the CO2 Injection Manifold was not able to be connected to the WellTracer® unit,
notate the time as the valve is opened.
3. Allow the CO2 to flow into the Gas Lift supply line until the pressure on the CO2 Injection
Manifold equalizes with the Gas Lift supply pressure, injecting approximately fifteen (15) to
twenty (20) pounds of CO2 into the well.
4. Once the pressures equalize, quickly close valves B and C (Figure 19) and open valve E (Figure
19). This will allow the Data Logger to clearly identify when CO2 injection ceased.
NOTE: If the CO2 Injection Manifold was not able to be connected to the WellTracer® unit,
notate the time as the valve is closed.
5. Note the amount of CO2 injected, as the weight information is not recorded in any way by the
WellTracer® unit.
6. Close the valve on the CO2 and N2 cylinders to safety.
Disconnect CO2 Manifold Connections
If the steps outlined in the Field Cleaning the Separator section are to be performed, removing the CO2
Injection Manifold (Step 10) may be skipped at this time and performed after the separator has been
cleaned.
1.
2.
3.
4.
5.
6.
Disconnect data cable from transducer on CO2 Injection Manifold (Figure 19).
Close valve 2 on Lift Gas Manifold (Figure 15).
Close valves B and D (Figure 19).
Open valve C (Figure 19).
Slowly open valve E (Figure 19) to bleed off pressure from ¼ inch stainless steel hose.
Disconnect ¼ inch stainless steel hose from CO2 Injection Manifold (Identified by 3 on Figure
11).
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WellTracer® Operations Manual WT-5
7. Disconnect ¼ inch stainless steel hose from Gas Lift manifold (Identified by 2 on Figure 12).
Connect quick connect fitting with cap to ensure safety.
8. Slowly open valves A, B and D (Figure 19) to bleed off any remaining pressure.
9. Disconnect CO2 transducer cable connected to WellTracer® unit.
10. Disconnect CO2 Injection Manifold from CO2 cylinder and disconnect N2 regulator from N2
cylinder.
Monitoring the WellTracer® Survey
1. The estimated time required to allow the injected CO2 to return to the WellTracer® unit should
be notated on the WellTracer® Site Worksheet prior to arriving at the well.
A. The WellTracer® Site Worksheet should contain the depths of all installed mandrels and
type of hardware installed in each mandrel.
B. The WellTracer® Site Worksheet should contain the estimated travel time to each mandrel
as predicted by the WinGLUE® model.
C. The WellTracer® Site Worksheet should contain the Lifting Mandrel(s) and Deepest Mandrel
numbers.
D. The WellTracer® Site Worksheet should contain the estimated Return Times for the Lifting
Mandrel(s) and the Deepest Mandrel.
E. The WellTracer® Site Worksheet should contain the estimated duration of the WellTracer®
Survey.
F. Field measurements should be entered on the WellTracer® Site Worksheet.
Figure 9 WellTracer Unit
2. The WellTracer® unit should be monitored to ensure the following:
1.1. The flow rate on the Flow Rate Meter (identified by A on Figure 9) remains constant at
1.5 l/min.
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WellTracer® Operations Manual WT-5
1.2. The pressure on the L.P gauge (Identified by C on Figure 9) remains constant at 20 psig.
1.3. Ensure no liquid is allowed to enter the CO2 Analyzer card. If any liquid were to enter
the CO2 Analyzer card the sensor will be destroyed and require replacement.
1.4. Monitor the Dual Filter System inside the WellTracer® unit (As seen through unit
window shown on Figure 16).
1. If the currently utilized filter shows signs of liquid absorption, switch to the other
filter and replace the contaminated filter media as instructed in the Maintaining the
Dual Filter System section.
2. If liquid is detected in the Dual Filter System there is a good possibility that the
Separator has become filled with liquid.
i. Fully open the ½ inch valve on the WellTracer® unit to allow any liquids
accumulated in the separator to be discharged.
ii. Readjust the ½ inch valve on the WellTracer® unit to ensure proper flow rate is
achieved.
iii. Monitor the Dual Filter System to ensure no further liquid appears.
iv. If further liquid is introduced into the Dual Filter System, the Separator
may need to be cleaned. Depending on the time estimated for the CO2 to
return to the WellTracer® unit, it may be possible to clean the Separator
without aborting the WellTracer® Survey.
v. See the Maintaining the Separator section for instructions on cleaning the
Separator.
3. When the CO2 returns to the WellTracer® unit the WellTracer® Survey is complete.
A. CO2 concentration levels may be monitored any time during the WellTracer® Survey by
observing the LCD on the WellTracer® unit.
B. The entire WellTracer® survey plot may be viewed at any time by clicking the
button on the WellTracer® Live Plot Control panel (Identified by 3 on Figure 15).
C. The WellTracer® Survey should not be terminated until the CO2 Concentration shows a
clearly evident increased level or sufficient time has elapsed to ensure the CO2 will not be
returning to the WellTracer® unit.
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WellTracer® Operations Manual WT-5
Figure 9-WellTracer Unit
Shut-down Procedure
Once suitable CO2 return results are obtained, the system may be shut down and disconnected.
Terminate Data Acquisition
1. Switch the Data Logger switch (Identified by 5 on Figure 9) to the OFF position.
2. If the Data Logger switch is inadvertently switched to the OFF position during a WellTracer®
Survey, simply switch it back to the ON position.
Terminate System Flow / Remove Field Connections
Fully close the L.P ADJ valve (Identified by F on Figure9).
Completely close the swab valve.
Completely close the valve on the well head where the Well Head Manifold is attached.
Fully open the ½ valve located on the WellTracer® unit. This will allow accumulated pressure to
bleed from the ¼ inch stainless steel hose and the WellTracer® Unit.
5. Disconnect the ¼ inch stainless steel hose from the Well Head Manifold.
1.
2.
3.
4.
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WellTracer® Operations Manual WT-5
Figure 10 – Well Head Manifold
6. Disconnect Well Head transducer extension cable (Identified by4 on Figure 10) from the Well
Head Manifold and the WellTracer® unit connection (Located on side of Electrical Enclosure).
7. Disconnect the Well Head Manifold from the well head valve fitting.
8. Remove any adapter fittings installed in the valve fitting.
9. Replace the cap (or plug) removed from the valve fitting.
10. Disconnect the ¼ inch stainless steel hose from the WellTracer® unit.
11. If no further WellTracer® Surveys are to be conducted, see Field Cleaning the Separator.
12. Remove Lift Gas Manifold, see Removing Lift Gas Connections section.
13. Remove and plug all discharge hoses from bleed tank or other fluid waste container.
14. Disconnect ½ inch and ¼ inch discharge hoses from the WellTracer® Unit.
15. Remove the ½ inch valve from the WellTracer® unit.
16. Extract data from the Data Logger; see Extracting the WellTracer® Survey.
17. Unplug the SERIAL (RS-232) cable from the laptop computer.
18. Disconnect the SERIAL (RS-232) cable from the WellTracer® unit (Figure 9 – Item #7).
19. Disconnect the power cable from the power source.
20. Disconnect the power cable from the WellTracer® unit (Figure 9).
21. Repack the WellTracer® unit and accessories for transport.
Removing Lift Gas Connections
1.
2.
3.
4.
5.
6.
7.
Close the valve on the Gas Lift supply line.
Disconnect the Lift Gas Manifold transducer extension cable (Identified by 4 on Figure 15).
Remove the cap from the quick connect (Identified by 4 on Figure 15).
Slowly open the valve (identified by 2 on Figure 15) to allow the pressure to bleed off.
Remove the Lift Gas Manifold and any fittings needed for connection to the valve.
Replace any caps (or plugs) removed from the valve fitting.
Disconnect the cable from the WellTracer® unit (Figure 9).
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WellTracer® Operations Manual WT-5
Extracting the WellTracer® Survey
The WellTracer® data can be extracted from the Data Logger in 2 different manners. The data
file can be extracted from the Data Logger and then later imported into WinGLUE® using the
WellTracer® Import panel or be extracted directly to a WellTracer® Survey in WinGLUE®. If the analysis
of the WellTracer® Survey is to be performed on another computer, extracting the data file from the
Data Logger is the recommended method.
Even when creating the WellTracer® Survey directly the data should be extracted to a data file for
archiving.
Extracting a WellTracer® Data File
1. If open, close the WellTracer® Live Plot Control panel and open the WellTracer® Data Logger
Control panel. Both panels cannot be open at the same time and WinGLUE® will warn you of
such.
2. Input a folder in the Folder box (identified by 3 on Figure 17) or click the
button
(identified by 4 on Figure 17) to select a folder in which the WellTracer® data files will be stored.
3. The file names for the extracted files are generated by WinGLUE® and have the extension .xr5.
4. Click the
button to extract the WellTracer® Survey data to file.
5. The process may be interrupted at any time by pushing the <SPACEBAR>.
6. When the process is interrupted the data will still be on the Data Logger. The data will remain
on the Data Logger until the Data Logger is reset.
7. The data file will be extracted to the folder specified.
8. Once the data is extracted the Data Logger may be reset.
Extracting WellTracer® Data to a WellTracer® Survey
1. If open, close the WellTracer® Live Plot Control panel and open the WellTracer® Data Logger
Control panel. Both panels cannot be open at the same time and WinGLUE® will warn you of
such.
button to create a WellTracer® Survey.
2. Click the
3. The process may be interrupted at any time by pushing the <SPACEBAR>.
4. When the process is interrupted the data will still be on the Data Logger. The data will remain
on the Data Logger until the Data Logger is reset.
5. A WellTracer® Survey will be created and the temporary data file will be automatically deleted.
6. Be sure to save WinGLUE® (<Ctrl> + <s> or File Save) before exiting to ensure the WellTracer®
Survey is not lost.
7. Once the WellTracer® Survey is created the Data Logger may be reset.
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WellTracer® Operations Manual WT-5
Extracting a WellTracer® Data File
1. If open, close the WellTracer® Live Plot Control panel and open the WellTracer® Data Logger
Control panel. Both panels cannot be open at the same time and WinGLUE® will warn you of
such.
2. Input a folder in the Folder box (identified by 3 on Figure 17) or click the
button
(identified by 4 on Figure 17) to select a folder in which the WellTracer® data files will be stored.
3. The file names for the extracted files are generated by WinGLUE® and have the extension .xr5.
4. Click the
button to extract the WellTracer® Survey data to file.
5. The process may be interrupted at any time by pushing the <SPACEBAR>.
6. When the process is interrupted the data will still be on the Data Logger. The data will remain
on the Data Logger until the Data Logger is reset.
7. The data file will be extracted to the folder specified.
8. Once the data is extracted the Data Logger may be reset.
Extracting WellTracer® Data to a WellTracer® Survey
1. If open, close the WellTracer® Live Plot Control panel and open the WellTracer® Data Logger
Control panel. Both panels cannot be open at the same time and WinGLUE® will warn you of
such.
button to create a WellTracer® Survey.
2. Click the
3. The process may be interrupted at any time by pushing the <SPACEBAR>.
4. When the process is interrupted the data will still be on the Data Logger. The data will remain
on the Data Logger until the Data Logger is reset.
5. A WellTracer® Survey will be created and the temporary data file will be automatically deleted.
6. Be sure to save WinGLUE® (<Ctrl> + <s> or File Save) before exiting to ensure the WellTracer®
Survey is not lost.
7. Once the WellTracer® Survey is created the Data Logger may be reset.
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WellTracer® Operations Manual WT-5
Care and Cleaning of the WellTracer®
Maintaining the Safety Dump
The Safety Dump System is located inside the WellTracer® unit (As shown in Appendix 3) and aids in
preventing well fluids from entering the analyzer card. In the event of fluids filling the filter medium or
the system is being cleaned. (Refer to Appendix 3 for further instructions).
Maintaining the Dual Filter System
The Dual Filter System is located inside the WellTracer® unit (identified by A on Figure 21) and aids in
preventing well fluids from entering the analyzer card.
Isolating a Filter
Occasionally, well fluids may collect in a filter during the course of a WellTracer® Survey. The Dual Filter
System allows the contaminated filter to be isolated and changed without interruption to the
WellTracer® Survey. Once a filter has been isolated, see the Changing the Filter Media section for
further instructions.
Figure 21 – Dual Filter System
1
A
2
B
1. As illustrated in Figure 21, the Dual Filter System consists of two (2) filters and two three way
valves.
2. Only one (1) filter should be subjected to gas flow at any given time.
3. To operate through Filter A, Valve 1 and Valve 2 should be turned so that arrow points up.
4. To operate through Filter B, Valve 1 and Valve 2 should be turned so that valve arrow points
down.
5. See Figure 17 to determine the Open and Closed positions of the valves.
36
WellTracer® Operations Manual WT-5
6. To completely shut off both filters, turn valve 1 and 2 so that arrows are in middle.
Changing the Filter Media
Refer to Figure 21 of Appendix 6 for an exploded view of the filter assembly.
1. If changing the filter media during a WellTracer® Survey, be sure the filter is isolated as outlined
in the Isolating a Filter section.
2. Open the petcock valve (6) to release any retained pressure and loosen the assembly until the
valve fitting is removed.
3. Carefully unscrew and remove the glass housing (4) from the filter assembly (1).
4. Remove the filter retaining plate (5) from the bottom of the filter.
5. Remove the contaminated filter media (3), ensuring that that filter seal O-ring (2) is not lost.
6. If the filter seal O-ring (2) falls out, insert the filter seal O-ring back into the filter assembly.
7. Slide on a new filter media (3).
8. Slide the filter retaining plate (5) back in to position.
9. Screw the glass housing (4) back into the filter assembly (1), ensuring that the filter seal O-ring
(2) is properly positioned to ensure a good seal.
10. Screw the petcock valve assembly (6) on and close the petcock valve.
11. The filter may now be returned to service.
Maintaining the Separator
•
•
When the fluid separator has filled with well fluids to a sufficient level that liquid is detected in
the Dual Filter System, it will be necessary to clean the fluid separator. The fluid separator
should also be cleaned every six (6) to twelve (12) months depending on the frequency the
WellTracer® is used.
If the Dual Filter System is repeatedly exposed to liquid during the WellTracer® Survey, the fluid
separator will require immediate cleaning. Depending on the estimated time for the CO2 to
return from the well, it may be possible to clean the fluid separator without abandoning the
current WellTracer® Survey. The fluid separator can be cleaned in approximately one (1) hour.
Figure 22 –WellTracer Unit Separator
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WellTracer® Operations Manual WT-5
Figure 23 –WellTracer Unit Rupture Disk Assembly
Replacing the Rupture Disk
1.
2.
3.
4.
5.
6.
7.
The rupture disk should only be replaced when the WellTracer® unit is not in service.
Disconnect the tubing from the rupture disk assembly as identified by 1 on Figure 23.
Unscrew the rupture disk assembly at the location identified by 4 on Figure 23.
Carefully remove the damaged rupture disk.
Insert a new rupture disk.
Reassemble the rupture disk assembly.
Reconnect the tubing to the rupture disk assembly identified by 1 on Figure 23.
See Appendix 7 for additional information.
38
WellTracer® Operations Manual WT-5
What to Do When Emulsion is encountered
Allowing any well fluids to enter the CO2 Analyzer may result in damage to the CO2 sensor. If a well is
known to produce emulsion or if emulsion is encountered:
•
•
•
•
•
Monitor the fluid discharge from the ½ stainless steel hose connected to the H.P OUTPUT
(Identified by 2 on Figure 9).
Monitor Dual Filter System to ensure fluid separator is not allowing well fluids to pass through.
The ½ inch valve on the WellTracer® unit may be adjusted to allow more discharge from the
WellTracer® unit. If the valve is opened to allow more discharge, ensure that the System Low
Pressure and Flow Rate remain at the proper levels.
Periodically opening the ½ inch valve on the WellTracer® unit fully will allow the fluid separator
to discharge accumulated well fluids. Ensure the valve is closed to the same position after
dumping well fluids from the fluid separator.
Regulating the swab valve will also decrease the amount of well fluids that arrive at the
WellTracer®.
Field Cleaning the Separator Unit
The fluid separator (Identified by 2 on Figure 22) is located inside the WellTracer® unit. The fluid
separator may be blown free of much residual well fluids that have collected in the fluid separator
before leaving the field.
1. After the ¼ inch stainless steel hose is removed from the well head and the well head is secure
and returned to normal operation, connect the ¼ inch stainless steel hose to the CO2 Injection
Manifold (identified by 2 on Figure 19).
2. Ensure that valves A thru E on the CO2 Injection Manifold are closed.
3. Ensure H.P ADJ valve (identified by F on Figure 9) is closed.
4. Ensure L.P REG (identified by I on Figure 9) is turned fully counterclockwise.
5. Ensure L.P ADJ valve (identified by E on Figure 9) is closed.
6. Open the valve on the N2 cylinder.
7. Adjust the N2 regulator to 1000 psig.
8. Open the valve on the N2 regulator.
9. Fully open the ½ inch valve on the WellTracer® unit.
10. Open the H.P ADJ valve (identified by F on Figure 9).
11. Open valves A, B and C on the CO2 Injection Manifold, allowing the N2 to blow retained well
fluids in to the bleed tank or other suitable fluid waste disposal container.
12. Close Valve C.
13. Close the valve on the N2 cylinder.
14. Slowly open Valve E to release built up pressure.
15. Remove ¼ inch stainless steel hose from CO2 Injection Manifold.
16. Remove CO2 Injection Manifold from the CO2 cylinder.
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WellTracer® Operations Manual WT-5
17. Remove regulator from the N2 cylinder.
Analyze the WellTracer® Survey Data
The WellTracer® Survey data may be analyzed to learn a number of things about the current operating
conditions of the well.
From a WellTracer® Survey, one can determine:
•
•
•
•
Operating mandrel
Annular communication
Multi-pointing
Tubing Integrity
WinGLUE® (distributed by AppSmiths) is designed for analysis of WellTracer® Survey. WinGLUE® will
analyze the data imported from a WellTracer® Survey and generate a report in MS Excel ® format. Data
analysis can be performed by obtaining a registered copy of WinGLUE® or the data may be sent to
AppSmiths for analysis. Below is an example of the WellTracer® Survey report generated by WinGLUE®.
40
WellTracer® Operations Manual WT-5
41
WellTracer® Operations Manual WT-5
Information on WinGLUE®
WinGLUE® is the Windows Gas Lift User’s Environment software distributed by AppSmiths for the
purpose of Gas Lift analysis and design. Further information can be found at the WinGLUE® web site of
by contacting AppSmiths directly.
http://www.winglue.com
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WellTracer® Operations Manual WT-5
QHSE Overview
The WellTracer® in itself is a relatively safe system to operate. However, the oilfield and/or production
platform environment in which it is to be used has many hazards, which must be addressed while
installing/operating the equipment. The procedures outlined in this document cover most of the hazards
involved, but only in general terms. It is a MUST that the production platform personnel including: Well
Engineers, Operators, Production Supervisors, and HSE Advisors are all consulted early on in the
planning stages for any upcoming WellTracer® Field Trials. The platforms site-specific requirements will
always supersede the (general) Safety requirements outlined here.
Equipment
The following is a list of items that are normally shipped with WellTracer® that could possibly have HSE
issues associated with them.
•
•
Calibration Gas (Carbon Dioxide & Nitrogen bottles) — these are shipped in the form of
cylinders and hold approximately (1 lbs) of gas each. When transporting these calibration gas
bottles by air, check to make sure all FAA regulations are met.
WellTracer® — none of the equipment/components associated with the WellTracer® are
intrinsically safe or rated for Hazardous Location duty. WellTracer® must be located outside the
hazardous area and in a safe zone. Typically, the “safe zone” is an area at least 10 feet in radius
away from the well head. THE ONSITE OPERATIONS PERSONEL AND PLATFORM ENGINEERS
MUST MAKE THIS DETERMINATION.
Atmospheres
Explosive / hazardous atmospheres are regularly encountered on production platforms both onshore
and offshore. The following gives a few examples of controls that need to be put in place before testing
begins.
•
•
•
•
Permit to Work — Be sure that operations personnel have reviewed the work areas and
approved all equipment to be used in these areas for the atmospheres involved. Make sure all
signatures have been attained on Permit before proceeding.
Test for (Explosive) Atmospheres with Meter — Have area sniffed by operations meter and
compare readings. Always keep a functioning gas meter next to WellTracer® during testing
operations. Check meter display periodically to ensure its continued safe operation.
Note: A gas meter (sniffer) is not included with WellTracer®. Normally, they are rented
from local vendors.
Test for (H2S) Atmospheres with Meter — Have area sniffed by operations meter and compare
readings. If H2S is detected, get with a local HSE Advisor, as this type work requires specialized
training.
Stop Work — Immediately stop work if any area or local alarms sound that may indicate a gas
release. Check the status of the alarms with local operations personnel.
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WellTracer® Operations Manual WT-5
•
Venting — The WellTracer® naturally vents from two (2) locations. The Analyzer and Waste
Drum. Safe work distances should be adhered to while working near these potentially explosive
sources. Normally, venting of the system is limited to approximately 100-125 cubic feet per day.
Pressures
Extremely high pressures can be encountered while working with Gas Lift wells. Pressures encountered
can range anywhere from 500- 1500 psi. Extreme caution must be exercised while working with these
pressures!
•
Permit to Work —Be sure that operations personnel have reviewed the work areas and
approved all equipment to be used in these areas for the pressures involved. Make sure all
signatures have been attained on Permit before proceeding.
•
Connection Sequence — Be sure operations personnel have reviewed all the points of
connection and the sequence in which the WellTracer® will be tied into the production system
including: Gas Lift Supply-Manifold ports, Well-Tubing Head Ports, and Well-Casing Ports.
•
Fittings — carefully inspect all fittings and valves to be used. Verify that their pressure ratings
are correct for the application and they are in good working condition. Normally, valves and
fittings located on the well head equipment are not used or inspected daily, so severe corrosion
of the valves and their associated fittings may develop overtime. Valves found in these
conditions should not be used as they pose a potential serious risk for personal injury. Extreme
caution should be exercised when tightening any valves or fittings on a pressurized system.
•
Inspections / Monitoring — during testing operations, it is a good practice to make a
walkthrough of the system checking for leaks that may have developed.
•
Securing Gas Cylinders — Gas cylinders should be secured at all times to prevent accidental tip
over which could result in extremely high pressures being released.
Temperatures
Normally, extreme temperatures will not be encountered while testing using the WellTracer®. However,
the following should be completed before proceeding with each test.
•
Permit to Work — Be sure that operations personnel have reviewed the work areas and
approved all equipment to be used in these areas for the temperatures that will be
encountered. Make sure all signatures have been attained on Permit before proceeding.
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WellTracer® Operations Manual WT-5
Environmental
There are two environmental issues associated with operating the WellTracer®.
•
•
•
The first is a fluid leak or spill from the container that is being used to catch the waste fluids. If
this condition was to develop, immediately notify the on-site operations personnel and follow
their procedure for clean up and reporting.
Secondly, venting to the atmosphere. Typically, this system generates very low amounts of vent
gas (approximately 100-125 cubic feet per day). However, onsite operation personnel should be
made aware of the amount of vented gas so that they can be recorded and reported to the
proper agency.
Labeling — Ensure all site procedures for labeling waste containers and drums used during
WellTracer® Surveys are followed.
WellTracer® Repair
As with any device, parts in the WellTracer® can stop working over time or environmental issues can
cause damage to internal components. How WellTracer® is repaired varies from each installation and
how the service was procured. In some instances, only access to replacement parts will be necessary,
while in other instances AppSmiths will need to repair WellTracer®. Repairs can either be done by
returning WellTracer® to AppSmiths or by arranging an on-site visit.
Obtaining Replacement Parts
Replacement parts for internal components of the WellTracer® may be obtained by contacting
AppSmiths. Please be certain to order the correct replacement parts, as all sales are final on
replacement parts.
Return the WellTracer® for Repair
The WellTracer® may be returned to AppSmiths for repair or maintenance. Please contact AppSmiths to
arrange for service prior to sending WellTracer®.
On-site Service
AppSmiths can arrange to perform on-site repairs, maintenance or training. Costs of on-site visits vary
greatly depending on location and services desired.
Contacting AppSmiths
•
•
•
Phone: 281-578-0154
Mail: P.O. Box 6131, Katy, TX 77491-6131 USA
Email: support@appsmiths.com
45
WellTracer® Operations Manual WT-5
Appendix 1: MSDS (Material Safety Data Sheets)
CO2 (Carbon Dioxide)
MATERIAL SAFETY DATA SHEET
PRODUCT NAME: CARBON DIOXIDE, LIQUID
1. Chemical Product and Company Identification
Specific company information has been omitted. Each location will have a local supplier and specific
MSDS should be obtained from local supplier, if required.
2. Composition, Information on Ingredients
INGREDIENT % VOLUME PEL-OSHA1 TLV-ACGIH2 LD50 or LC50
Route/Species
Carbon Dioxide
FORMULA: CO2
CAS: 124-38-9
RTECS #: FF6400000
99.8 TO 99.999 5000 ppm TWA 5000 ppm TWA
30,000 ppm STEL
Not Available
1. As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
2. As stated in the ACGIH 1994-95 Threshold Limit Values for Chemical Substances and Physical
Agents
3. Hazards Identification
EMERGENCY OVERVIEW
Oxygen levels below 19.5% may cause asphyxia. Carbon dioxide exposure can cause nausea and
Respiratory problems. High concentrations may cause vasodilatation leading to circulatory collapse.
PRODUCT NAME: CARBON DIOXIDE, GAS
ROUTE OF ENTRY:
Skin Contact: Yes
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WellTracer® Operations Manual WT-5
Skin Absorption: No
Eye Contact: Yes
Inhalation: Yes
Ingestion: Yes
HEALTH EFFECTS:
Exposure Limits: Yes
Irritant: No
Sensitization: No
Teratogen: No
Reproductive Hazard: No
Mutagen: No
Synergistic Effects: None reported
Carcinogenicity:
NTP: No
IARC: No
OSHA: No
EYE EFFECTS: No adverse effects anticipated.
SKIN EFFECTS: No adverse effects anticipated.
INGESTION EFFECTS: No adverse effects anticipated.
INHALATION EFFECTS:
•
•
•
Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations
causes rapid circulatory insufficiency leading to coma and death. Asphyxiation is likely to occur
before the effects of carbon dioxide overexposure. Chronic, harmful effects are not known from
repeated inhalation of low concentrations.
Low concentrations of carbon dioxide cause increased respiration and headache.
Effects of oxygen deficiency resulting from simple asphyxiates may include: rapid breathing,
diminished mental alertness, impaired muscular coordination, faulty judgment, depression of all
sensations, emotional instability, and fatigue. As asphyxiation progresses, nausea, vomiting,
47
WellTracer® Operations Manual WT-5
•
prostration, and loss of consciousness may result, eventually leading to convulsions, coma, and
death.
Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and
experimental animals.
NFPA HAZARD CODES HMIS HAZARD CODES RATINGS SYSTEM
Health: 1 Health: 1 0 = No Hazard
Flammability: 0 Flammability: 0 1 = Slight Hazard
Reactivity: 0 Reactivity: 0 2 = Moderate Hazard
3 = Serious Hazard
4 = Severe Hazard
4. First Aid Measures
EYES: Never introduce oil or ointment into the eyes without medical advice! If pain is present, refer the
victim to an ophthalmologist for further treatment and follow up.
SKIN: No adverse effects anticipated.
INGESTION: Not anticipated.
INHALATION: PROMPT MEDICAL ATTENTION IS MANDATORY IN ALL CASES OF OVEREXPOSURE TO
CARBON DIOXIDE. RESCUE PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING
APPARATUS. Conscious persons should be assisted to an uncontaminated area and inhale fresh air.
Quick removal from the contaminated area is most important. Unconscious persons should be moved to
an uncontaminated area, given mouth-to-mouth resuscitation and supplemental oxygen. Further
treatment should be symptomatic and supportive.
5. Fire Fighting Measures
Conditions of Flammability: Nonflammable
Flash point: None
Method: Not Applicable
Auto Ignition Temperature: None
LEL(%): None
UEL(%): None
Hazardous combustion products: None
Sensitivity to mechanical shock: None
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WellTracer® Operations Manual WT-5
Sensitivity to static discharge: None
FIRE AND EXPLOSION HAZARDS: None Nonflammable
6. Accidental Release Measures
Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in user’s
equipment, be certain to purge piping with inert gas prior to attempting repairs. If a leak is detected in
the container or the container valve, contact the supplier.
7. Handling and Storage
Electrical Classification: Non-Hazardous
Dry carbon dioxide can be handled in most common structural materials. Moist carbon dioxide is
generally corrosive by its formation of carbonic acid. For applications with moist Carbon Dioxide, 316,
309 and 310 stainless steels may be used as well as Hastelloy ® A, B, & C, and Monel ®. Ferrous Nickel
alloys are slightly susceptible to corrosion. At normal temperatures, carbon dioxide is compatible with
most plastics and elastomers.
Use only in well-ventilated areas. Carbon dioxide vapor is heavier than air and will accumulate in low
areas.
Valve protection caps must remain in place unless container is secured with valve outlet piped to use
point. Do not drag, slide or roll cylinders. Use a suitable hand truck for cylinder movement. Use a
pressure reducing regulator when connecting cylinder to lower pressure (<3000 psig) piping or systems.
Do not heat cylinder by any means to increase the discharge rate of product from the cylinder. Use a
check valve or trap in the discharge line to prevent hazardous back flow into the system.
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area away from heavily
trafficked areas and emergency exits. Do not allow the temperature where cylinders are stored to
exceed 125oF (52oC).
Cylinders should be stored upright and firmly secured to prevent falling or being knocked over. Full and
empty cylinders should be segregated. Use a "first in-first out" inventory system to prevent full cylinders
being stored for excessive periods of time.
For additional storage recommendations, consult Compressed Gas Association’s Pamphlet P-1.
Never carry a compressed gas cylinder or a container of a gas in cryogenic liquid form in an enclosed
space such as a car trunk, van or station wagon. A leak can result in a fire, explosion, asphyxiation or a
toxic exposure.
Maximum use for potable water: 100 mg/l
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WellTracer® Operations Manual WT-5
8. Exposure Controls, Personal Protection
EXPOSURE LIMITS1:
INGREDIENT % VOLUME PEL-OSHA2 TLV-ACGIH3 LD50 or LC50
Route/Species
Carbon Dioxide
FORMULA: CO2
CAS: 124-38-9
RTECS #: FF6400000
99.8 TO 99.999 5000 ppm TWA 5000 ppm TWA
30,000 ppm STEL
Not Available
1 Refer
to individual state of provincial regulations, as applicable, for limits which may be more stringent than those listed here.
2 As
stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
3 As
stated in the ACGIH 1994-1995 Threshold Limit Values for Chemical Substances and Physical Agents.
IDLH (Carbon Dioxide): 50,000 ppm
ENGINEERING CONTROLS: Use local exhaust to prevent accumulation of high concentrations so as to
reduce the oxygen level in the air to less than 19.5% and the carbon dioxide concentration below the
exposure limit.
EYE/FACE PROTECTION: Safety goggles or glasses as appropriate for the job.
SKIN PROTECTION: Protective gloves of any material appropriate for the job.
RESPIRATORY PROTECTION: Positive pressure air line with full-face mask and escape bottle or selfcontained breathing apparatus should be available for emergency use.
OTHER/GENERAL PROTECTION: Safety shoes
9. Physical and Chemical Properties
PARAMETER VALUE UNITS
Physical state (gas, liquid, solid): Liquid
Vapor pressure at 70 °F: 856 psia
Vapor density at 70 °F, 1 atm (Air = 1): 1.53
Evaporation point: Not Available
Boiling point (CO2 Sublimes): -109.3 °F (-78.5 °C)
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WellTracer® Operations Manual WT-5
Freezing point: -69.8 °F (-56.6 °C)
pH: Not Available
Specific gravity: Not Available
Oil/water partition coefficient: Not Available
Solubility (H20): Very soluble
Odor threshold: Not Applicable
Odor and appearance: A colorless, odorless gas.
10. Stability and Reactivity
STABILITY: Stable
INCOMPATIBLE MATERIALS: Certain reactive metals, hydrides, moist cesium monoxide, or lithium
acetylene carbide diammino may ignite.
Passing carbon dioxide over a mixture of sodium peroxide and aluminum or magnesium may explode.
HAZARDOUS DECOMPOSITION PRODUCTS: Carbon monoxide and oxygen when heated above 3092 °F
(1700°C). Carbonic acid is formed in the presence of moisture.
HAZARDOUS POLYMERIZATION: Will not occur.
11. Toxicological Information
REPRODUCTIVE: Oxygen deficiency during pregnancy has produced developmental abnormalities in
humans and experimental animals.
Exposure of female rats to 60,000 ppm carbon dioxide for 24 hours has produced toxic effects to the
embryo and fetus in pregnant rats. Toxic effects to the reproductive system have been observed in
other mammalian species at similar concentrations.
OTHER: Carbon dioxide is the most powerful cerebral vasodilator known. Inhaling large concentrations
causes rapid circulatory insufficiency leading to coma and death. Chronic, harmful effects are not known
from repeated inhalation of low (3 to 5 molar %) concentrations.
12. Ecological Information
No data given.
13. Disposal Considerations
Do not attempt to dispose of residual waste or unused quantities. Return in the shipping container
PROPERLY LABELED, WITH ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP
IN PLACE to BOC Gasses or authorized distributor for proper disposal.
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WellTracer® Operations Manual WT-5
14. Transport Information
PARAMETER United States DOT Canada TDG
PROPER SHIPPING NAME: Carbon Dioxide Carbon Dioxide
HAZARD CLASS: 2.2 2.2
IDENTIFICATION NUMBER: UN 1013 UN 1013
SHIPPING LABEL: NONFLAMMABLE GAS NONFLAMMABLE GAS
15. Regulatory Information
SARA TITLE III NOTIFICATIONS AND INFORMATION
SARA TITLE III HAZARD CLASSES:
Acute Health Hazard
Sudden Release of Pressure Hazard
16. Other Information
Compressed gas cylinders shall not be refilled without the express written permission of the owner.
Shipment of a compressed gas cylinder which has not been filled by the owner or with his/her (written)
consent is a violation of transportation regulations.
DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES:
Although reasonable care has been taken in the preparation of this document, we extend no warranties
and make no representations as to the accuracy or completeness of the information contained herein,
and assume no responsibility regarding the suitability of this information for the user’s intended
purposes or for the consequences of its use. Each individual should make a determination as to the
suitability of the information for their particular purpose(s).
52
WellTracer® Operations Manual WT-5
N2 (Nitrogen)
MATERIAL SAFETY DATA SHEET
PRODUCT NAME: NITROGEN
1. Chemical Product and Company Identification
Specific company information has been omitted. Each location will have a local supplier and specific
MSDS should be obtained from local supplier, if required.
2. Composition, Information on Ingredients
INGREDIENT % VOLUME PEL-OSHA1 TLV-ACGIH2 LD50 or LC50
Route/Species
Nitrogen
FORMULA: N2
CAS: 7727-37-9
RTECS #: QW9700000
99.5 Simple Asphyxiate Simple Asphyxiate Not Available
Isoprene
FORMULA: C5H3
CAS: 78-79-5
RTECS #: NT4037000
0.5 Not Available Not Available LC 50
180,000 mg/m3
/4H (rat)
1
As stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
2
As stated in the ACGIH 1994-95 Threshold Limit Values for Chemical Substances and Physical Agents
3. Hazards Identification
EMERGENCY OVERVIEW
Simple Asphyxiate. This product does not contain oxygen and may cause asphyxia if released in a
confined area. Irritant to eyes and skin. Nonflammable.
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WellTracer® Operations Manual WT-5
ROUTE OF ENTRY:
Skin Contact: Yes
Skin Absorption: No
Eye Contact: Yes
Inhalation: Yes
Ingestion: No
HEALTH EFFECTS:
Exposure Limits: No
Irritant: Yes
Sensitization: No
Teratogen: No
Reproductive Hazard: No
Mutagen: No
Synergistic Effects: None Reported
Carcinogenicity:
NTP: None
IARC: None
OSHA: None
EYE EFFECTS: Vapors may irritate or burn eyes.
SKIN EFFECTS: Vapors or liquid may be poisonous if absorbed through the skin.
INGESTION EFFECTS: Ingestion is unlikely.
INHALATION EFFECTS: Nitrogen is a simple asphyxiate. The liberation of a large amount of this product in a
confined area could displace the amount of oxygen in air necessary to support life. Maintain oxygen levels above
19.5% at sea level.
Isoprene vapors may be toxic if inhaled. Symptoms of overexposure may include: dizziness, nausea, or other
central nervous system effects.
Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and experimental
animals.
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WellTracer® Operations Manual WT-5
MEDICAL CONDITIONS AGGRAVATED BY OVEREXPOSURE: Individuals with pre-existing conditions of the heart,
lungs and blood may have increased susceptibility to symptoms of asphyxia.
NFPA HAZARD CODES HMIS HAZARD CODES RATINGS SYSTEM
Health: 1 Health: 1 0 = No Hazard
Flammability: 0 Flammability: 0 1 = Slight Hazard
Reactivity: 1 Reactivity: 1 2 = Moderate Hazard
3 = Serious Hazard
4 = Severe Hazard
4. First Aid Measures
EYES: If pain is present, refer the victim to an ophthalmologist for treatment and follow up.
SKIN: Not needed as product is a gas at room temperature.
INGESTION: Unlikely as product is a gas at room temperature.
INHALATION: PROMPT MEDICAL ATTENTION IS NECESSARY IN ALL CASES OF OVEREXPOSURE. RESCUE
PERSONNEL SHOULD BE EQUIPPED WITH SELF-CONTAINED BREATHING APPARATUS.
Remove the victim from the contaminated area as soon as possible. If victim is not breathing, ensure
that an airway is open and administer CPR. If necessary, provide additional air or oxygen once breathing
is restored.
5. Fire Fighting Measures
Conditions of Flammability: Nonflammable
Flash point: None
Method: Not Applicable
Auto Ignition Temperature: None
LEL(%): None
UEL(%): None
Hazardous combustion products: None
Sensitivity to mechanical shock: None
Sensitivity to static discharge: None
FIRE AND EXPLOSION HAZARDS: None. Non-flammable gas.
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WellTracer® Operations Manual WT-5
6. Accidental Release Measures
Evacuate all personnel from affected area. Use appropriate protective equipment. If leak is in user’s
equipment, be certain to purge piping with inert gas prior to attempting repairs. If a leak is detected in
the container or the container valve contact the supplier.
7. Handling and Storage
Use only in well-ventilated areas. Valve protection caps must remain in place unless container is secured
with valve protection outlet piped to use point. Do not drag, slide or roll cylinders. Use a suitable hand
truck for cylinder movement. Use a pressure reducing regulator when connecting cylinder to lower
pressure (<3000 psig) piping or systems. Do not heat cylinder by any means to increase the discharge
rate of product from the cylinder. Use a check valve or trap in the discharge line to prevent hazardous
back flow into the cylinder.
Protect cylinders from physical damage. Store in cool, dry, well-ventilated area of non-combustible
construction away, from heavily trafficked areas and emergency exits. Do not allow the temperature
where cylinders are stored to exceed 125oF (52oC). Cylinders should be stored upright and firmly secured
to prevent falling or being knocked over. Use a "first in-first out" inventory system to prevent full
cylinders being stored for excessive periods of time.
For additional recommendations, consult Compressed Gas Association Pamphlets P-1, P-14, P-9, and
Safety Bulletin SB-2.
Never carry a compressed gas cylinder or a container of a gas in cryogenic liquid form in an enclosed
space such as a car trunk, van or station wagon. A leak can result in a fire, explosion, asphyxiation or a
toxic exposure.
8. Exposure Controls, Personal Protection
EXPOSURE LIMITS1:
INGREDIENT % VOLUME PEL-OSHA2 TLV-ACGIH3 LD50 or LC50
Route/Species
Nitrogen
FORMULA: N2
CAS: 7727-37-9
RTECS #: QW9700000
99.5 Simple Asphyxiate Simple Asphyxiate Not Available
Isoprene
FORMULA: C5H3
CAS: 78-79-5
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WellTracer® Operations Manual WT-5
RTECS #: NT4037000
0.5 Not Available Not Available LC 50
180,000 mg/m3
/4H
(rat)
1 Refer
to individual state of provincial regulations, as applicable, for limits which may be more stringent than
those listed here.
2 As
stated in 29 CFR 1910, Subpart Z (revised July 1, 1993)
3 As
stated in the ACGIH 1994-1995 Threshold Limit Values for Chemical Substances and Physical Agents.
ENGINEERING CONTROLS: Use adequate ventilation to keep vapor concentrations of this product below
occupational exposure limits. In confined spaces, local and general ventilation should be provided.
EYE/FACE PROTECTION: Safety goggles or safety glasses as appropriate for the job.
SKIN PROTECTION: Where contact may occur wear apron, face shield, and cold-impervious, insulating
gloves.
RESPIRATORY PROTECTION: An airline respirator equipped with an escape bottle or self-contained
breathing apparatus (SCBA) should be used for gas concentrations above occupational exposure limits,
for potential for uncontrolled release, if exposure levels are not known or in an oxygen-deficient
atmosphere.
Refer to OSHA 1910.134, ANSI Z88,2-1992, and NIOSH Respirator Decision Logic for additional guidance
for respiratory protection.
9. Physical and Chemical Properties
PARAMETER VALUE UNITS: Physical state (gas, liquid, solid) : Gas
Vapor pressure: Above critical temp. psia
Vapor density (Air = 1): 0.97
Evaporation point: Not Available
Boiling point: ~-320.4 °F (~-195.8 °C)
Freezing point: ~-345.9 °F (~-209.9 °C)
pH: Not Available
Specific gravity: Not Available
Oil/water partition coefficient: Not Available
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WellTracer® Operations Manual WT-5
Solubility (H20): Very slightly soluble
Odor threshold: Not Available
Odor and appearance: A colorless gas with a slight aromatic odor.
10. Stability and Reactivity
STABILITY: (Isoprene) forms organic peroxides on standing.
HAZARDOUS POLYMERIZATION: Will not polymerize.
11. Toxicological Information
LC50 Rat, 180 mg/m3/4H.
Oxygen deficiency during pregnancy has produced developmental abnormalities in humans and
experimental animals.
12. Ecological Information
No known effects.
13. Disposal Considerations
Do not attempt to dispose of residual waste or unused quantities. Return in the shipping container
PROPERLY LABELED, WITH ANY VALVE OUTLET PLUGS OR CAPS SECURED AND VALVE PROTECTION CAP
IN PLACE to BOC Gasses or authorized distributor for proper disposal.
14. Transport Information
PARAMETER United States DOT Canada TDG
PROPER SHIPPING NAME: Compressed Gasses, n.o.s.
(Nitrogen, Isoprene)
Compressed Gasses, n.o.s.
(Nitrogen, Isoprene)
HAZARD CLASS: 2.2 2.2
IDENTIFICATION NUMBER: UN 1956 UN 1956
SHIPPING LABEL: NONFLAMMABLE GAS NONFLAMMABLE GAS
15. Regulatory Information
Isoprene is listed under the accident prevention provisions of section 112(r) of the Clean Air Act (CAA)
with a threshold quantity (TQ) of 10,000 pounds.
RCRA INFORMATION
Isoprene is listed as a hazardous waste substance (40 CFR 116.7).
SARA TITLE III NOTIFICATIONS AND INFORMATION
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WellTracer® Operations Manual WT-5
Releases of isoprene in quantities equal to or greater than the reportable quantity (RQ) of 100 pounds are subject
to reporting to the National Response Center under CERCLA, Section 304 SARA Title III.
SARA TITLE III - HAZARD CLASSES:
Sudden Release of Pressure Hazard
REGULATED INGREDIENTS:
INGREDIENT: Isoprene
CAS NUMBER: 78-79-5 PERCENT BY VOLUME: 0.5
Regulations: Illinois Toxic Substance
Massachusetts Hazardous Substance
New Jersey Special Health Hazardous Substance
New Jersey Workplace Hazardous Substance
Pennsylvania Environmental Hazardous Substance
Pennsylvania Workplace Hazardous Substance
16. Other Information
Compressed gas cylinders shall not be refilled without the express written permission of the owner.
Shipment of a compressed gas cylinder which has not been filled by the owner or with his/her (written)
consent is a violation of transportation regulations.
DISCLAIMER OF EXPRESSED AND IMPLIED WARRANTIES:
Although reasonable care has been taken in the preparation of this document, we extend no warranties
and make no representations as to the accuracy or completeness of the information contained herein,
and assume no responsibility regarding the suitability of this information for the user’s intended
purposes or for the consequences of its use. Each individual should make a determination as to the
suitability of the information for their particular purpose(s).
59
WellTracer® Operations Manual WT-5
Appendix 2: Equipment Safety Ratings
The Separator unit is equipped with a rupture disk that will release pressure from the WellTracer® at a
burst rating of 1509 PSIG @ 72°F (104 bar @ 22°C).
Ratings for flexible PTFE metal hoses used to make field connections to the WellTracer®:
Nominal
Hose Size
in. (mm)
5/16 (7.9)
5/8 (15.9)
Minimum Bend Radius
in. (cm)
Static
Dynamic
3.50 (8.89)
5.00 (12.7)
6.00 (15.2)
7.50 (19.0)
Temperature
Range
°F (°C)
-65 to 450
(-53 to 230)
Working
Pressure at
70°F (20°C)
psig (bar)
2500 (172)
1500 (103)
Minimum Burst
Pressure at
70°F (20°C)
psig (bar)
10000 (689)
6000 (413)
All 5/16 inch hoses are equipped with ¼ inch field connections.
All 5/8 inch hoses are equipped with ½ inch field connections.
PTFE is a nonconductive coating material.
Component Pressure Ratings
Part
Name
Mfg.
Part
Number
Material
Regulator
Bulkhead Union
Needle Valve
Needle Valve
Ball Valve
Pressure Gauge
Pressure Gauge
Teflon Hose
Pressure Gauge
Pipe Tee
Pipe Cross
Pipe Nipple
Ball Valve
Male Connector
Reducing Bushing
Street Elbow
Bulkhead Union
Female Elbow
Male Elbow
Male Connector
Reducing Union
Male Connector
Female Tee
Union Tee
Check Valve
Male Elbow
Threaded Tee
Ball Valve
Tescom
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
Swagelok
BB-13AL1KVA4
SS-400-61
SS-1RS4
SS-1RS4-A
SS-43S4
PGI-63B-PG60-CAQ1
PGI-63B-PG1000-CAQ1
SS-TH4TA4TA4-36
PGI-63B-PG5000-LAO1-J
SS-4-T
SS-4-CS
SS-4-HN
SS-33EF4
SS-400-1-4
SS-6-RB-4
SS-4-SE
SS-810-6-2
SS-400-9
SS-810-2-8
SS-200-1-4
SS-400-6-2
SS-100-1-4
SS-400-3-4TTF
SS-400-3
SS-4CA-50
SS-400-2-4
SS-4-T
SS-42S4-A
ALUM
SS
SS
SS
SS
ALUM
ALUM
SS
ALUM
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
SS
Pressure
Rating
psi
1,800
6,600
5,000
5,000
2,500
60
1,000
3,000
5,000
7,200
7,200
8,000
6,000
8,000
6,600
7,200
4,900
4,900
7,700
8,000
6,600
8,000
6,600
6,600
3,000
6,600
7,200
2,500
bar
124
450
344
344
172
4
60
206
344
496
496
551
413
551
454
496
330
330
530
550
450
550
450
450
206
450
496
172
Allowable
Stress Value
psi
6,000
20,000
bar
400
1,378
15,000
15,000
12,000
15,000
20,000
20,000
20,000
1,000
1,000
826
1,000
1,378
1,378
1,378
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
20,000
6,000
20,000
20,000
1,378
1,378
1,378
1,378
1,378
1,378
1,378
1,378
1,378
1,378
1,378
413
1,378
1,378
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WellTracer® Operations Manual WT-5
Appendix 3: Safety Dump
Safety Dump
To Flow Meter
1
2
From Gas Card
3
Note:
The Safety Dump operates by allowing gas’s to flow freely. In the event of an overflow of
liquids, in the event of a overflow the safety dump seals off any potential flow to the flow
meter.
o Under normal operation Input Valve 1 shown above and Output Valve 3 are
normally left in the open position. Bypass Valve 2 is left in the closed position.
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WellTracer® Operations Manual WT-5
Safety Dump Bypass Valves
Safety Dump Bypass Valves 2
A
B
C
Note:
In the event of liquid over flow the following steps should be taken to clear out the safety
dump.
1. Close Input Valve (Labeled A above).
2.
Close Output valve (Labeled B above).
3. Open Bypass Valve (Labeled C )
4. Flow Nitrogen through system as instructed
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WellTracer® Operations Manual WT-5
Appendix 4: Sample Forms
Sample WellTracer® Site Worksheet
63
WellTracer® Operations Manual WT-5
Sample WellTracer® BJSA
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WellTracer® Operations Manual WT-5
Appendix 5: Identifying Which COM Port
1. Open the Windows System Settings.
2. Start Settings Control Panel System
3. Click on the Hardware tab.
button.
4. Click the
5. Expand Ports (COM & LPT).
6. Find the COM port number for the Communications Port.
a. As illustrated, some computers may have more than one COM port.
b. (COM1) is typically the available serial (RS-232) port and will most likely be used with
WellTracer®.
Figure 23 – Device Manager
65
WellTracer® Operations Manual WT-5
Appendix 6: Additional System Illustrations
Figure 24 – Filter Exploded View
66
WellTracer® Operations Manual WT-5
Appendix 7: Rupture Disk Assembly
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WellTracer® Operations Manual WT-5
Appendix 8: Electrical Compartment
WellTracer® Electronics Compartment
1
2
4
12
3
5
4
8
11
6
13
14
7
15
16
9
10
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Purge Block
24VDC 2.5A Power Supply
12VDC 2.5A Power Supply
Terminal Blocks
High Pressure Transducer
Tempature Probe
Low Pressure Transducer
Data Logger
Co2 Analaizer
Power Cable
17
18
11. Digital Display
12. Purge Indicator
13. Data Logger On/Off
14. Power On/Off with light
15. WellHead Data Input
16. Serial Input
17. CO2 Data Input
18. Lift Gas Input
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Appendix 9: Data Logger Manual Reset
In the unlikely event that the data logger becomes unresponsive to the commands sent by the
WellTracer® Data Logger Control panel, the Data Logger can be reset manually.
1. Disconnect power from the WellTracer® unit.
2. Unplug the SERIAL (RS-232) cable from the Data Logger.
3. Remove the terminal strip from the Data Logger (identified by 4 on Figure 23) by pulling up on
the terminal strip at the corners.
4. Remove the two (2) nuts securing the Data Logger.
5. Remove the Data Logger from the WellTracer® unit.
6. Remove the four (4) screws from the back of the Data Logger.
7. Remove the Data Logger cover.
8. Remove the batteries from the Data Logger. Keep the batteries out for two (2) minutes.
9. Reinstall the batteries.
10. Replace the Data Logger cover.
11. Replace the four (4) screws in the back of the Data Logger.
12. Replace the Data Logger in the WellTracer® unit.
13. Replace the two (2) nuts securing the Data Logger.
14. Replace the terminal strip in the Data Logger.
15. Plug the SERIAL (RS-232) cable into the Data Logger.
16. Connect power to the WellTracer® unit.
17. Reattempt previous action.
Appendix 10: WellTracer® Equipment Specifications
Dimensions:
18 ¼” X 17 ½” X 18 ¼” (46.4cm X 44.5cm X 46.4cm)
Weight:
116lbs. (52.6kg)
Power Required:
100VAC – 240VAC @ 50-60 Hz
Maximum Operating Pressure: 1509 PSIG @ 72°F (104 bar @ 22°C)
Operating Temperature:
32°F – 120°F (0°C – 48°C)
The WellTracer® unit is designed to be resistant to environments but is
not completely waterproof nor dustproof.
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Appendix 11: Recommended Toolkit
Qty
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
Item
Volt Meter
Small Phillips Screwdriver
Medium Phillips Screwdriver
Large Phillips Screwdriver
Small Slotted Screwdriver
Medium Slotted Screwdriver
Large Slotted Screwdriver
Set Phillips Jewelers (or similar) Screwdrivers
Set Slotted Jewelers (or similar) Screwdrivers
Set ¼” to 1” Combination (Open End/Box) Wrenches
Set ¼” to 1” Sockets
14” Pipe Wrench
12” Crescent Wrench
8” Crescent Wrench
Needle Nose Pliers
Channel Lock (or similar) Pliers
Wire Cutters
Wire Strippers
Wire Brush
Set Hex Key Wrenches
50’ Extension Cord (with attached GFCI if used offshore)
Grounded Power “T” (or similar grounded multi-plug adapter)
Teflon Tape
Electrical Tape
Assorted Cable Ties
WD40 (or similar penetrating oil)
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WellTracer® Operations Manual WT-5
Appendix 12: Verifying Field Data in WinGLUE®
The most important values to verify are Injection (Casing) Pressure, Injection (Lift Gas) Rate and
Injection (Casing) Temperature. These are the factors that most affect the predicted times to the
mandrels for the WellTracer® Survey. The Production (Tubing Head) Pressure and Oil/Water Production
Rates should also be verified.
1. Contact the well operator to get the most current values from the SCADA system or from
instrumentation at the well head.
2. Compare the values to those entered on the WellTracer® Site Worksheet.
3. If the values match or are reasonably close, no further action is required. If the values are not
reasonably close, run WinGLUE®.
4. Open the Well Test panel (Figure 24) by clicking the
Diagram or via the menu (Data Measurements Well Test).
5. Enter the values into the Calib. Value column of the Well Test.
6. Click the Apply button.
button on the Data Entry
7. Open the Lift Gas Properties panel (Figure 25) by clicking the
Data Entry Diagram or via the menu (Data LG Properties).
8. Enter the measured Surface Injection Temperature in the proper location.
9. Click the Apply button.
button on the
10. Open the WellTracer® Travel Prediction panel by clicking the
button on the WellTracer® Shortcuts panel.
11. Record the new travel times on the WellTracer® Site Worksheet.
Figure 24: Well Test Panel
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WellTracer® Operations Manual WT-5
Figure 25: Lift Gas Properties Panel
72