FUGRO
System Operating and Maintenance
Manual
Berkut Structural and Bearing Monitoring
System
Fugro Document No.: C30426J001R4 (172676J001R2)
Exxon Neftegas Ltd.
Fourth revision
Fugro Document No. C30426J001R4 (172676J001R2)
Page 1 of 48
EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
FUGRO
System Operating and Maintenance
Manual
Berkut Structural and Bearing Monitoring
System
Fugro Document No.: C30426J001R4 (172676J001R2)
Fourth revision
Prepared for:
Exxon Neftegas Ltd.
28 Sakhalinskaya Street
Yuzhno-Sakhalinsk
693000
Russian Federation
4
Fourth revision
KJM
ATM
KJM
30 Nov 2017
3
Third revision
KJM
ATM
KJM
26 Sep 2017
2
Second revision
CW
KA
KA
29 Aug 2017
1
First Revision
CC
EM
GH
12 Dec 2012
0
First Issue
CC
EM
GH
20 Sep 2012
Document Status
Prepared
Checked
Approved
Date
Issue
Fugro GB Marine Ltd., 1 Queenslie Court, Summerlee Street, Queenslie, Glasgow G33 4DB, UK
Phone: +44 141 774 8828 | Fax: +44 141 774 6112 | E-mail: FGEOSG.fsmsupportservices@fugro.com | Web: www.fugro.com
Fugro Document No. C30426J001R4 (172676J001R2)
EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
CONTENTS
1.
INTRODUCTION
4
1.1
General
4
1.2
Document Purpose
4
1.3
Related Documents
4
1.4
Abbreviations
5
1.5
Revision History
5
2.
HARDWARE
6
2.1
System Description
6
2.2
Parts List
10
2.3
System Power
11
2.4
System Configuration – Accelerometers
11
2.5
System Configuration – Tiltmeters
12
2.6
System Configuration – Laser Displacement Sensors
12
3.
SOFTWARE
13
3.1
Advisory
13
3.2
System Shutdown, Start and Restart
13
3.3
System Log In
13
3.4
User Interface
14
3.5
General Failure Alarm
22
3.6
Displacement Sensor Alarms
22
3.7
Alarms Display
22
3.8
Real Time Plots
23
3.9
Statistics Plots
26
4.
DATA STORAGE
31
4.1
Data Storage
31
4.2
DAC Data Retrieval
32
4.3
Manual FPB DAU Data Retrieval
32
5.
MAINTENANCE
39
5.1
DAC Disk Utilisation and data storage
39
5.2
Master DAS
39
5.3
FPB DAU
41
5.4
Accelerometer and Tiltmeter Sensors
42
5.5
Displacement Sensors
42
6.
TROUBLESHOOTING
43
6.1
Overview
43
6.2
General Troubleshooting Steps
43
6.3
Accelerometer Troubleshooting Checklist
44
6.4
FPB DAU Troubleshooting Checklist
45
6.5
Tiltmeter Troubleshooting Checklist
46
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
7.
MISCELLANEOUS DATA PROCESSING NOTES
47
8.
CONTACT DETAILS
48
APPENDICES
A.
APPENDIX
A.1
ENL POST EARTHQUAKE EVENT ACTIONS
TABLES IN THE MAIN TEXT
Table 1.1: Related documents
4
Table 1.2: Abbreviations
5
Table 1.3: Revision history
5
Table 2.1: Structural Monitoring System – Accelerometer tag numbers
10
Table 2.2: Structural Monitoring System – Tiltmeter tag numbers
10
Table 2.3: Structural Monitoring System – DAS tag numbers
10
Table 2.4: Bearing Monitoring System – GBS tag numbers
10
Table 2.5: Bearing Monitoring System – GBS tag numbers
10
Table 2.6: Bearing Monitoring System – GBS tag numbers
11
Table 2.7: Bearing Monitoring System – GBS tag numbers
11
Table 2.8: Bearing Monitoring System – DAU tag numbers
11
Table 2.9: Accelerometer signal conditioning specification
11
Table 2.10: As-installed FPB sensor offsets
12
Table 3.1: System log in credentials
13
Table 3.2: Displacement display value ranges, colours and meaning
16
Table 3.3: Real time table data channels
23
Table 4.1: Disk space utilisation and data file storage locations
31
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
FIGURES IN THE MAIN TEXT
Figure 2.1: Simplified block diagram of structural monitoring and friction pendulum bearing monitoring
systems.
6
Figure 2.2: DAS cabinet (rear)
7
Figure 2.3: DAS cabinet (front)
8
Figure 2.4: FPB DAU enclosure
9
Figure 3.1: Summary screen.
14
Figure 3.2: Rolling displacement display (summary tab)
16
Figure 3.3: Device status window (summary tab)
16
Figure 3.4: Tab selection options
16
Figure 3.5: Statistic selection options
17
Figure 3.6: Acceleration plot tab (figure does not show actual system measurements)
18
Figure 3.7: Tilt plot tab (figure does not show actual system measurements)
19
Figure 3.8: Displacement plot tab -no alarm condition (figure does not show actual system measurements)
20
Figure 3.9: Displacement plot tab - alarm condition (figure does not show actual system measurements)
21
Figure 3.10: Alarms display (no alarms)
22
Figure 3.11: Alarms display (alarms triggered example)
22
Figure 3.12: Real time plots
23
Figure 3.13: Plotted real-time data.
25
Figure 3.14: Scaling buttons on taskbar
25
Figure 3.15: Manual range entry
26
Figure 3.16: Graphical range entry
26
Figure 3.17: Statistics plot selection window
27
Figure 3.18: Statistics plot dialogue box
27
Figure 3.19: Statistics plot window
28
Figure 3.20: Statistics export dialogue box
29
Figure 3.21: Statistics export format menu
29
Figure 3.22: Dialogue box to save exported file
30
Figure 3.23: Confirmation window
30
Figure 4.1: CFM100 compact flash module
33
Figure 4.2: Eject CF card
33
Figure 4.3: PC200W Card Convert software
34
Figure 4.4: CardConvert window
35
Figure 4.5: Destination file options
36
Figure 4.6: Time settings
36
Figure 4.7: Drive selection
37
Figure 4.8: Format menu
38
Figure 5.1: Percentage disk utilisation
39
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
1.
INTRODUCTION
1.1
General
1.1.1
This document is the system operating and maintenance manual for the Structural Monitoring System
and the Friction Pendulum Bearing Monitoring System supplied by Fugro for the Berkut platform.
1.1.2
The system comprises accelerometer sensor packages, tilt sensor packages, bearing displacement
sensors, and data acquisition and storage equipment. The Friction Pendulum Bearing Monitoring
System (FPBMS) comprises of displacement sensor packages and data acquisition and storage
equipment. Data from the FPBMS is transmitted to and stored on the SMS.
1.1.3
For the purposes of this manual, the FPBMS is considered to be a sub-system of the SMS and is not
dealt with separately.
1.1.4
The purpose of the systems is to measure the dynamic structural response of the platform during
seismic events.
1.2
Document Purpose
1.2.1
The purpose of this manual is to provide information to onsite staff to enable the status of the system
to be correctly understood, routine maintenance to be carried out, and basic troubleshooting steps to
be taken. This document is intended as a brief guide for the operator, and is not an exhaustive
reference.
1.2.2
The system is designed to be reliable and to require minimal corrective maintenance or user
intervention. In the event of equipment becoming faulty, most items may be replaced on a modular
basis.
1.2.3
The system is complex and includes sensitive and specialised equipment. All work done on the
system should be performed by suitably briefed and competent personnel. All appropriate safety
procedures should be followed, and work on the systems should conform to standard safe working
practices.
1.3
Related Documents
1.3.1
The following documents are referred to or contain relevant information.
Table 1.1: Related documents
Document No.
Description
RUSD-3150-C-PD-T2-0001
System Block Diagram
RUSD-3150-E-ID-T2-0001
System Wiring Diagram
RUSD-3150-C-PD-T2-0002
Functional Specification
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
1.4
Abbreviations
1.4.1
Abbreviations used in this document are as follows:
Table 1.2: Abbreviations
Abbreviation
Meaning
DAC
Data Acquisition Computer
DAS
Data Acquisition System
DAU
Data Acquisition Unit
DLE
Ductility Level Earthquake
FPB
Friction Pendulum Bearing
FPBMS
Friction Pendulum Bearing Monitoring System
GBS
Gravity Base Structure
MCB
Miniature Circuit Beaker
PCS
Platform Control System
SBMS
Structural and Bearing Monitoring System
SLE
Strength Level Earthquake
SMS
Structural Monitoring System
UPS
Uninterruptible Power Supply
1.5
Revision History
1.5.1
This is the third revision of the user manual.
Table 1.3: Revision history
Revision
Date
Details
0
20 Sep 2012
First issue
1
12 Sep 2012
New section added detailing system log in credentials and references to
automatic log in were removed. The FPB displacement sensor locations were
updated and additional information regarding the zero-volt contact for the PCS
was added. The FPB DAU manual data retrieval section was also updated.
2
29 Aug 2017
Revised following system upgrade work. Changes included a replacement PC,
Windows upgrade and software upgrade. Acceleration data is now saved in
hourly files rather than triggered files.
3
26 Sep 2017
Revised for corrections and client comments.
4
30 Nov 2017
Revised for software display modification and further client comments
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
2.
HARDWARE
2.1
System Description
2.1.1
The Structural and Bearing Monitoring system comprises two systems. The first system is the
Structural Monitoring System (SMS). The second system is the Friction Pendulum Bearing Monitoring
System (FPBMS).
2.1.2
The Structural Monitoring System (SMS) comprises a number of accelerometer sensor packages, tilt
sensor packages and data acquisition and storage equipment. Data is monitored, acquired, and stored
by the Data Acquisition System (DAS). The DAS is located in a safe area.
2.1.3
The Friction Pendulum Bearing Monitoring System (FPBMS) comprises 4 pairs of bearing
displacement sensors and a local Data Acquisition Unit (DAU). The DAU acquires and stores data
independently of the master DAS. Data is transmitted to the master DAS by the DAU. If the
communications link between the DAU and master DAS is broken, the DAU will continue to acquire
and store data.
2.1.4
A simplified system block diagram is shown below.
Figure 2.1: Simplified block diagram of structural monitoring and friction pendulum bearing
monitoring systems.
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
2.1.5
Figures 2.2, 2.3 and 2.4 show the DAS cabinet (front and rear) and FPB DAU cabinet respectively.
Figure 2.2: DAS cabinet (rear)
DATA
ACQUISITION
COMPUTER
(DAC)
FYLDE SIGNAL
CONDITIONING
RACK
CONTROL CABINET T2-SRVCB73804
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
Figure 2.3: DAS cabinet (front)
CONTROL CABINET T2-SRVCB73804
DATA
ACQUISITION
COMPUTER
(DAS)
ADAM SERIAL
DATA
CONVERTERS
TILTMETER
CR1000 LOGGER
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
Figure 2.4: FPB DAU enclosure
CABINET T2-VJBC79600
FPB DAU CR1000
DATALOGGERS (QTY.4)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
2.2
Parts List
Table 2.1: Structural Monitoring System – Accelerometer tag numbers
STRUCTURE
Gravity Base
Structure
Cellar Deck
Weather Deck
LOCATION
North West
South West
South East
North West
South West
South East
North West
South West
South East
ACCELEROMETER SENSOR PACKAGES
TAG NUMBER
RUSD-T2-SMS79600-VT 01 / RUSD-T2-VT79600-01
RUSD-T2-SMS79600-VT 02 / RUSD-T2-VT79600-02
RUSD-T2-SMS79600-VT 03 / RUSD-T2-VT79600-03
RUSD-T2-SMS79600-VT 04 / RUSD-T2-VT79600-04
RUSD-T2-SMS79600-VT 05 / RUSD-T2-VT79600-05
RUSD-T2-SMS79600-VT 06 / RUSD-T2-VT79600-06
RUSD-T2-SMS79600-VT 07 / RUSD-T2-VT79600-07
RUSD-T2-SMS79600-VT 08 / RUSD-T2-VT79600-08
RUSD-T2-SMS79600-VT 09 / RUSD-T2-VT79600-09
Table 2.2: Structural Monitoring System – Tiltmeter tag numbers
STRUCTURE
LOCATION
Cellar Deck
South Face
East Face
TILTMETER SENSOR PACKAGES
TAG NUMBER
RUSD-T2-SMS79600-ZT 01B / RUSD-T2-ZT79600-01B
RUSD-T2-SMS79600-ZT 02B / RUSD-T2-ZT79600-02B
Table 2.3: Structural Monitoring System – DAS tag numbers
MASTER DATA ACQUISITION SYSTEM
ITEM
LOCATION
QUANTITY
TAG NUMBERS
Data Acquisition Computer
Control Cabinet T2-SRVCB73804
1
OWS79600
FE-PE17 Fylde 16-slot signal
conditioning rack
Control Cabinet T2-SRVCB73804
1
STGC79600
FE-367-MPC Fylde 2-channel
signal conditioning card
Control Cabinet T2-SRVCB73804
14
N/A
CR1000 data logger
Control Cabinet T2-SRVCB73804
1
DATL79600
RS232/485 converter module
Control Cabinet T2-SRVCB73804
4
N/A
DC power converters
Control Cabinet T2-SRVCB73804
2
N/A
Cable management system
including conduit and terminals
Control Cabinet T2-SRVCB73804
1
N/A
Table 2.4: Bearing Monitoring System – GBS tag numbers
STRUCTURE
Bearing
Displacement
Heated Target
GBS PRIMARY MONITORING – NORTH WEST LEG
TAG NUMBER
North South
RUSD-T2-SMS79600-ZTS 03 / RUSD-T2-ZTS79600-03
East West
RUSD-T2-SMS79600-ZTS 05 / RUSD-T2-ZTS79600-05
North South
RUSD-T2-SMS79600-ZTR 03 / RUSD-T2-ZTR79600-03
East West
RUSD-T2-SMS79600-ZTR 05 / RUSD-T2-ZTR79600-05
LOCATION
Table 2.5: Bearing Monitoring System – GBS tag numbers
STRUCTURE
Bearing
Displacement
Heated Target
GBS SECONDARY MONITORING – NORTH WEST LEG
LOCATION
TAG NUMBER
North South
RUSD-T2-SMS79600-ZTS 04 / RUSD-T2-ZTS79600-04
East West
RUSD-T2-SMS79600-ZTS 06 / RUSD-T2-ZTS79600-06
North South
RUSD-T2-SMS79600-ZTR 04 / RUSD-T2-ZTR79600-04
East West
RUSD-T2-SMS79600-ZTR 06 / RUSD-T2-ZTR79600-06
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
Table 2.6: Bearing Monitoring System – GBS tag numbers
STRUCTURE
Bearing
Displacement
Heated Target
GBS PRIMARY MONITORING – SOUTH WEST LEG
LOCATION
TAG NUMBER
North South
RUSD-T2-SMS79600-ZTS 07 / RUSD-T2-ZTS79600-07
East West
RUSD-T2-SMS79600-ZTS 09 / RUSD-T2-ZTS79600-09
North South
RUSD-T2-SMS79600-ZTR 07 / RUSD-T2-ZTR79600-07
East West
RUSD-T2-SMS79600-ZTR 09 / RUSD-T2-ZTR79600-09
Table 2.7: Bearing Monitoring System – GBS tag numbers
STRUCTURE
Bearing
Displacement
Heated Target
GBS SECONDARY MONITORING – SOUTH WEST LEG
LOCATION
TAG NUMBER
North South
RUSD-T2-SMS79600-ZTS 08 / RUSD-T2-ZTS79600-08
East West
RUSD-T2-SMS79600-ZTS 10 / RUSD-T2-ZTS79600-10
North South
RUSD-T2-SMS79600-ZTR 08 / RUSD-T2-ZTR79600-08
East West
RUSD-T2-SMS79600-ZTR 10 / RUSD-T2-ZTR79600-10
Table 2.8: Bearing Monitoring System – DAU tag numbers
GBS MONITORING – PS/DAU ENCLOSURE
ITEM
LOCATION
QUANTITY
TAG NUMBERS
CR1000 Data Logger
Cabinet T2-VJBC79600
4
N/A
CFM100 Data Storage Module
Cabinet T2-VJBC79600
4
N/A
2GB Compact Flash Card
Cabinet T2-VJBC79600
4
N/A
RS232/485 converter module
Cabinet T2-VJBC79600
4
N/A
Power Supply
Cabinet T2-VJBC79600
4
N/A
DC power converters
Cabinet T2-VJBC79600
2
N/A
Diode Module
Cabinet T2-VJBC79600
2
N/A
2.3
System Power
2.3.1
The SMS DAS is powered from a UPS backed power supply. The FPBMS DAU is powered from two
UPS backed power supplies each of sufficient capacity to power the DAU.
2.3.2
Refer to the system wiring diagram, RUSD-3150-E-ID-T2-0001, for further details of the UPS power
supplies.
2.4
System Configuration – Accelerometers
2.4.1
Data is acquired from a total of 21 accelerometers.
2.4.2
The signal conditioning cards for the accelerometers are configured as shown below.
Table 2.9: Accelerometer signal conditioning specification
Parameter
Setting
Pre-Amp Gain
1
Output Gain
1
High Pass Filter
0.01Hz
Low Pass Filter
10kΩ (100Hz)
Bridge Supply Voltage
10V
Transducer type with ‘N’ i/p grounded
±15V
Offset Resistor
4.7kΩ
Load Resistor
7.32kΩ
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SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
2.4.3
The nominal full-scale range is ±1051 milli-g (10309 mm/s²). The measurement resolution for the data
acquisition is 6.4*10-5 g.
2.4.4
The sample rate is 204.8 Hz. The time between samples on adjacent channels is 10µs.
2.5
System Configuration – Tiltmeters
2.5.1
Data is acquired from two bi-axial tiltmeters. The data is acquired using a CR1000 data logger located
in the master DAS cabinet. The values are acquired, processed, and transmitted to the master DAS.
2.5.2
The CR1000 data logger samples the sensors at 1Hz. The data acquired is corrected for temperature
by the data logger. The temperature values are obtained from the sensors internal thermistor. The
inclination values in each direction are calculated. The CR1000 transmits a data string containing the
latest values to the master DAS.
2.6
System Configuration – Laser Displacement Sensors
2.6.1
Data is acquired from four bi-axial displacement sensors (8 sensors in total). The data from each biaxial sensor is acquired using a CR1000 data logger located in the FPB DAUs. The data is acquired,
processed, stored, and transmitted to the master DAS.
2.6.2
The data is output from the primary sensors in RS422 format at a rate of 20Hz. The sensors are
configured in ‘fast’ mode. The CR1000 acquires the data and stores it locally on a CFM100 storage
module complete with 2GB compact flash card. The storage module is configured as a ring buffer.
2.6.3
The data is output from the secondary sensors in RS422 format at a rate of 6Hz (note that the sensor
records samples at 6 Hz but the data files contain the number of samples that would correspond
to a 20 Hz sample rate -the file is padded out between the 6 Hz sample intervals). The sensors are
configured in ‘precise’ mode. The CR1000 acquires the data and stores it locally on a CFM100
storage module complete with 2GB compact flash card. The storage module is configured as a ring
buffer.
2.6.4
The raw data from the sensors is processed such that a displacement of the bearing in the north or
east direction relative to the GBS is considered a positive displacement. In addition an installation
offset is applied to account for the initial “as installed” distances from the sensors to the targets.
Table 2.10: As-installed FPB sensor offsets
2.6.5
Sensor
Signal negation
As-installed offset
Full scale
NW Leg NS Primary
No
668 mm
|1000 mm|
NW Leg NS Secondary
Yes
-677 mm
|1000 mm|
NW Leg EW Primary
Yes
-645 mm
|1000 mm|
NW Leg EW secondary
No
633 mm
|1000 mm|
SW Leg NS Primary
No
662 mm
|1000 mm|
SW Leg NS Secondary
Yes
-670 mm
|1000 mm|
SW Leg EW Primary
Yes
-673 mm
|1000 mm|
SW Leg EW secondary
No
660 mm
|1000 mm|
The data is transmitted from the FPB DAUs to the master DAS. The data is acquired and stored by the
master DAS.
2.6.6
Each FPB DAU should be synchronised annually with the clock on the DAS PC as a maintenance
task.
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SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
3.
SOFTWARE
3.1
Advisory
The Data Acquisition Computer clock is deliberately configured so as not to observe
daylight savings time. Do not change the DST settings on the PC.
Do not manually alter the time on the PC. This may result in data loss and significant
problems with data analysis.
3.2
System Shutdown, Start and Restart
3.2.1
The SMS DAS is designed for continuous use and does not require to be periodically restarted or
shutdown. This section contains instructions for the shutdown, start and restart of the SMS DAS
should it be required.
3.2.2
In the event that power to the system is interrupted or lost for a period of time, the SMS Data
Acquisition Computer (DAC) will restart automatically once power has been re-applied. The SMS
software will start automatically after a 3 minute delay. Data acquisition will start automatically. No
user intervention is required.
3.2.3
Should a fatal error to any critical software component of the SMS DAC occur, the system will shut
down and restart automatically as described above.
3.2.4
If required, the SMS DAC can be shutdown, started, or restarted manually. The SMS DAC was
upgraded in July 2017 to an ENL supplied Dell Precision T7500 computer. This is running a Windows
7 Enterprise, Service Pack 1, 64-bit operating system. The PC is fitted with a 1TB hard drive
partitioned into two 500 GB segments.
3.2.5
If power to the any component of the SMS is to be removed, or if electrical isolation is required, it is
recommended that the DAC is shutdown first and restarted when the power supply has been reestablished.
3.2.6
The FPBMS is designed for continuous use and does not require to be periodically restarted or
shutdown. The FPB DAU operates whenever power is applied, no user intervention is required. The
operation of the FPBMS is reviewed from the SMS DAS.
3.3
System Log In
3.3.1
The system is password protected and the screen saver lock is enabled. The screen saver will enable
after 5 minutes. The user name and password required to log in to the system are detailed in the table
below.
Table 3.1: System log in credentials
User name
Administrator
Password
fugro
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SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
3.4
User Interface
3.4.1
This section describes the System User Interface for the Structural Monitoring System (SMS) and
outlines its functionality. The user interface comprises a series of windows which display information
on the status of the DAC and its components, the last system restart, trend plots, and the latest
statistical data values. The user interface also displays information on the status of the FPB DAU and
the data received from it.
3.4.2
The user interface is installed on the SMS Data Acquisition Computer (DAC). The DAC has no
dedicated monitor. Operators can view the system on existing displays by selecting the SBMS
(Structural and Bearing Monitoring System) on the Keyboard-Video-Mouse (KVM) switch monitor and
keyboard located in the platform control room. The KVM switch allows a display monitor and keyboard
in the control room to be switched between this system and other system(s) – at the time of system
commissioning the only other system connected to this KVM switch was the Sand Monitoring System.
Upon start-up of the DAC, or in the event of fatal error in any system software, the DAC will
automatically reboot without any user intervention. The SMS user interface will start automatically after
approximately a three minute delay.
3.4.3
A Summary of the status of the system is displayed on the principal page of the user interface.
Information is given on the status of the data acquisition computer, data acquisition devices, and
memory. This information is used primarily for troubleshooting of the system. The information
presented by the interface may be updated at any time by clicking the Refresh tab located at the
bottom left corner of the main window. The summary screen is shown in Figure 3.1.
3.4.4
The status of certain hardware components are displayed in the Device Statuses section of the
summary window. Should one of these components fail, it will be indicated in this section and a zerovolt contact switch will be triggered. The triggering of the zero-volt switch is described in greater detail
in the next section.
Figure 3.1: Summary screen.
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3.4.5
The rolling 24 hour maximum FPB resultant displacement value is calculated from the data statistics
on a rolling 24 hour basis. The value updates every five minutes for the previous 24 hours of data. The
background colour of this value changes for different displacement values. Table 3.2 lists the value
ranges and associated colours. In the event of a change ENL’s internal procedures should be
followed.
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Table 3.2: Displacement display value ranges, colours and meaning
24 hours maximum FPB resultant
displacement range [mm]
Display colour
Meaning
0 - 15
Green
Normal / no issues.
15 - 60
Blue
Small movement of FPBs (less than
SLE) or ice build-up on target.
60 - 190
Orange
SLE threshold has been exceeded
but not DLE.
Red
DLE threshold has been exceeded.
> 190
SLE = Strength Level Earthquake
DLE = Ductility Level Earthquake
Figure 3.2: Rolling displacement display (summary tab)
3.4.6
If the status of any of the devices below changes from NORMAL to FAILED consult the
troubleshooting checklist at the end of this manual. NORMAL indicated the device is operating as
expected. FAILED indicates a fault or warning and should be investigated.
Figure 3.3: Device status window (summary tab)
3.4.7
Plots of recently recorded acceleration, tilt, and displacement data may be viewed by navigating to the
appropriate screen by clicking the “Accels”, “Tilts”, or “Disp” tabs located at the bottom left corner of
the main window (shown below).
Figure 3.4: Tab selection options
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3.4.8
On the plot screens it is possible to select the sensor from which data is to be plotted using a drop
down menu as shown below. Statistics of maximum, minimum mean and standard deviation values
can be plotted and are selected from a drop down menu. The time period can also be selected.
Statistics are calculated every 5 minutes (i.e. the value in the plot is the statistical value for each five
minute period in the plot, e.g. a single maximum displacement value is the maximum value recorded
over a five minute period).
3.4.9
The sensor signal to display can be selected using the ‘Location’ drop-down menu. The duration of the
plots can be configured as required.
3.4.10
The active display tab title is displayed in the top left corner of the display.
Figure 3.5: Statistic selection options
3.4.11
Example statistic plots are shown in the following pages.
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Figure 3.6: Acceleration plot tab (figure does not show actual system measurements)
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Figure 3.7: Tilt plot tab (figure does not show actual system measurements)
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Figure 3.8: Displacement plot tab -no alarm condition (figure does not show actual system
measurements)
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Figure 3.9: Displacement plot tab - alarm condition (figure does not show actual system
measurements)
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3.5
General Failure Alarm
3.5.1
The monitoring system is equipped with a zero-volt switch which may be connected to the Platform
Control System (PCS). At the time of issue of the manual for (revision 3) this switch is not connected
to the PCS.
3.5.2
The zero-volt switch is triggered by one of the following sensor or system failures:
■
In the event that a displacement sensor alarm has been triggered;
■
In the event that a tilt or displacement logger fails;
■
In the event that the computer hard drives are approaching maximum capacity.
3.6
Displacement Sensor Alarms
3.6.1
The displacement screen displays a number of additional fields that are not shown on the acceleration
or tilt screens.
3.6.2
There is an alarm for each of the displacement sensors. The primary purpose of the alarm is to
provide an indication of possible ice build-up on the heated displacement sensor targets. Ice build-up
may occur during extreme weather conditions or if the heating element for a target fails. The alarm
may also be triggered if the displacement sensor becomes faulty.
3.7
Alarms Display
3.7.1
Call up the alarms display by navigating to the alarms tab. Example alarms displays are shown below.
Figure 3.10: Alarms display (no alarms)
Figure 3.11: Alarms display (alarms triggered example)
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3.8
Real Time Plots
3.8.1
This section describes how data can be viewed in real time. Real time data can be displayed in tabular
or plot format by appropriate selection from the Data drop-down menu which is located at the top left
corner of the main window.
Figure 3.12: Real time plots
3.8.2
To view real-time data in tabular format select Real Time Table. The data channels available in Real
Time Table are shown below.
Table 3.3: Real time table data channels
Data channel name
Description
Units
RAW_GB_NW_NS
Non-rotated raw accel data from GBS, NW loc, NS dir
milli-g
RAW_GB_NW_EW
Non-rotated raw accel data from GBS, NW loc, EW dir
milli-g
RAW_GB_SW_NS
Non-rotated raw accel data from GBS, SW loc, NS dir
milli-g
RAW_GB_SW_EW
Non-rotated raw accel data from GBS, SW loc, EW dir
milli-g
RAW_GB_SE_NS
Non-rotated raw accel data from GBS, SE loc, NS dir
milli-g
RAW_GB_SE_EW
Non-rotated raw accel data from GBS, SE loc, EW dir
milli-g
RAW_WD_NW_NS
Non-rotated raw accel data from Weather Deck, NW loc, NS dir
milli-g
RAW_WD_NW_EW
Non-rotated raw accel data from Weather Deck, NW loc, EW dir
milli-g
RAW_WD_SW_NS
Non-rotated raw accel data from Weather Deck, SW loc, NS dir
milli-g
RAW_WD_SW_EW
Non-rotated raw accel data from Weather Deck, SW loc, EW dir
milli-g
RAW_WD_SE_NS
Non-rotated raw accel data from Weather Deck, SE loc, NS dir
milli-g
RAW_WD_SE_EW
Non-rotated raw accel data from Weather Deck, SE loc, EW dir
milli-g
RAW_CD_NW_NS
Non-rotated raw accel data from Cellar Deck, NW loc, NS dir
milli-g
RAW_CD_NW_EW
Non-rotated raw accel data from Cellar Deck, NW loc, EW dir
milli-g
RAW_CD_NW_VE
Non-rotated raw accel data from Cellar Deck, NW loc, vertical dir
milli-g
RAW_CD_SW_NS
Non-rotated raw accel data from Cellar Deck, SW loc, NS dir
milli-g
RAW_CD_SW_EW
Non-rotated raw accel data from Cellar Deck, SW loc, EW dir
milli-g
RAW_CD_SW_VE
Non-rotated raw accel data from Cellar Deck, SW loc, vertical dir
milli-g
RAW_CD_SE_NS
Non-rotated raw accel data from Cellar Deck, SE loc, NS dir
milli-g
RAW_CD_SE_EW
Non-rotated raw accel data from Cellar Deck, SE loc, EW dir
milli-g
RAW_CD_SE_VE
Non-rotated raw accel data from Cellar Deck, SE loc, vertical dir
milli-g
TILT_MSG_COUNT
Tilt Logger Message Counter
n/a
CD_TE_NS_I
Tilt data from Cellar Deck, East spar, NS dir
degrees
CD_TE_EW_I
Tilt data from Cellar Deck, East spar, EW dir
degrees
CD_TS_NS_I
Tilt data from Cellar Deck, South spar, NS dir
degrees
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Data channel name
Description
Units
CD_TS_EW_I
Tilt data from Cellar Deck, South spar, EW dir
degrees
CD_TE_NS_T
Temperature data from Cellar Deck, East Spar
degreesC
CD_TE_EW_T
Temperature data from Cellar Deck, East Spar
degreesC
CD_TS_NS_T
Temperature data from Cellar Deck, South Spar
degreesC
CD_TS_EW_T
Temperature data from Cellar Deck, South Spar
degreesC
L1_PDI_NS
Displacement data FPB NW leg NS Primary
mm
L1_PDI_EW
Displacement data FPB NW leg EW Primary
mm
L2_PDI_NS
Displacement data FPB SW leg NS Primary
mm
L2_PDI_EW
Displacement data FPB SW leg EW Primary
mm
L1_SDI_NS
Displacement data FPB NW leg NS Secondary
mm
L1_SDI_EW
Displacement data FPB NW leg EW Secondary
mm
L2_SDI_NS
Displacement data FPB SW leg NS Secondary
mm
L2_SDI_EW
Displacement data FPB SW leg EW Secondary
mm
GB_NW_NS
Rotated accel data from GBS, NW loc, NS dir
milli-g
GB_NW_EW
Rotated accel data from GBS, NW loc, EW dir
milli-g
GB_SW_NS
Rotated accel data from GBS, SW loc, NS dir
milli-g
GB_SW_EW
Rotated accel data from GBS, SW loc, EW dir
milli-g
GB_SE_NS
Rotated accel data from GBS, SE loc, NS dir
milli-g
GB_SE_EW
Rotated accel data from GBS, SE loc, EW dir
milli-g
WD_NW_NS
Rotated accel data from Weather Deck, NW loc, NS dir
milli-g
WD_NW_EW
Rotated accel data from Weather Deck, NW loc, EW dir
milli-g
WD_SW_NS
Rotated accel data from Weather Deck, SW loc, NS dir
milli-g
WD_SW_EW
Rotated accel data from Weather Deck, SW loc, EW dir
milli-g
WD_SE_NS
Rotated accel data from Weather Deck, SE loc, NS dir
milli-g
WD_SE_EW
Rotated accel data from Weather Deck, SE loc, EW dir
milli-g
CD_NW_NS
Rotated accel data from Cellar Deck, NW loc, NS dir
milli-g
CD_NW_EW
Rotated accel data from Cellar Deck, NW loc, EW dir
milli-g
CD_NW_VE
Rotated accel data from Cellar Deck, NW loc, vertical dir
milli-g
CD_SW_NS
Rotated accel data from Cellar Deck, SW loc, NS dir
milli-g
CD_SW_EW
Rotated accel data from Cellar Deck, SW loc, EW dir
milli-g
CD_SW_VE
Rotated accel data from Cellar Deck, SW loc, vertical dir
milli-g
CD_SE_NS
Rotated accel data from Cellar Deck, SE loc, NS dir
milli-g
CD_SE_EW
Rotated accel data from Cellar Deck, SE loc, EW dir
milli-g
CD_SE_VE
Rotated accel data from Cellar Deck, SE loc, vertical dir
milli-g
Note: The accelerometers are not all mounted in line with the corresponding platform axes. To correct for this
the data is corrected for the actual installation angle. “Non-rotated raw accel data” refers to the non-rotated
data. “Rotated accel data” refers to the data corrected for orientation with platform axes.
3.8.3
To view real-time data in plot format select Data -> Real Time Plots which opens a channel selection
dialogue box.
3.8.4
Channels are selected by clicking on their names in the left pane and pressing the ‘>>’ button. The
selected channels are displayed in the right pane. If a channel is selected in error, it can be removed
from the right pane by selecting the channel name and clicking the ‘<<’ button. The channel name will
then be displayed in the left pane.
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3.8.5
Having selected the appropriate channels click OK, which is located at the top right corner of the
window. A real-time plot of the selected channels will be displayed in a new “RTPlot” window.
Figure 3.13: Plotted real-time data.
3.8.6
The real-time plots can be scaled using the Autoscale or Zoom Out buttons identified below. These
buttons are located in the taskbar which is found at the top left corner of the RTPlot window.
Figure 3.14: Scaling buttons on taskbar
3.8.7
The duration of the plots being displayed in real-time can be altered manually by changing the Range
value located at the top left corner of the RTPlot window.
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Figure 3.15: Manual range entry
3.8.8
Alternatively the range can be altered using the graphical interface by dragging the range bar across
the top of the plot window as shown below. The range bar begins at the top right corner of the RTPlot
window and can be dragged left across the screen.
Figure 3.16: Graphical range entry
3.9
Statistics Plots
3.9.1
Some simple statistical analysis of the recorded data can be performed with the user interface. The
“Maximum”, “Minimum”, “Mean”, and “Standard Deviation” over a user defined period can be plotted
using the interface or exported for offline analysis.
3.9.2
To plot statistical data select Data -> Statistics Plot from the toolbar located at the top left corner of the
main window. A new “Statistics Plot” dialogue box opens as shown below.
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Figure 3.17: Statistics plot selection window
3.9.3
The data to be plotted is selected by clicking the appropriate value in the right pane. The duration over
which the data should be analysed is defined by selecting appropriate values in the Duration box
located at the top left corner of the statistics plot dialogue box.
Figure 3.18: Statistics plot dialogue box
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3.9.4
The data is plotted by clicking the Plot button located at the bottom left corner of the statistics plot
dialogue box. The plot opens in a new RSSigEdit window.
Figure 3.19: Statistics plot window
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3.9.5
Alternatively, the data may be exported for additional offline analysis by selecting Data -> Export
Statistics from the toolbar located at the top left corner of the main window. A new “Statistics Export”
dialogue box opens.
Figure 3.20: Statistics export dialogue box
3.9.6
The statistics export dialogue box is used in a similar manner to that described for the statistics plot
dialogue box. The data can be exported as .mat (Matlab), .csv (which can be viewed in MS Excel),
or .res (readable on the offshore PC only) by using the Format dropdown menu which is located within
the body of the statistics export dialogue box.
Figure 3.21: Statistics export format menu
3.9.7
The data is exported by clicking the Export button located at the bottom left corner of the statistics
export dialogue box. A new window opens which allows the user to save the exported file to the hard
drive or a retrievable disk.
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Figure 3.22: Dialogue box to save exported file
3.9.8
After selecting the appropriate drive to which the exported file should be saved, click the Save button
located at the bottom right corner of the dialogue box. A confirmation window will be displayed.
Figure 3.23: Confirmation window
3.9.9
Click OK to acknowledge this confirmation.
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4.
DATA STORAGE
4.1
Data Storage
Table 4.1: Disk space utilisation and data file storage locations
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4.2
DAC Data Retrieval
4.2.1
It is recommended that the data stored on the DAC is periodically retrieved by platform staff and
transported on-shore for backup. This section contains instructions for the manual retrieval of data
from the DAC.
4.2.2
Data retrieval is manual, and is performed using an external memory device such as a CD/DVD/USB
mass storage device. A USB interface, a CD/DVD writer, and optical disk writing software are provided
on the DAC and can be accessed from the front of the Data Acquisition System (DAS) cabinet.
4.2.3
To retrieve data, navigate to the folders described in Section 4.1 using Windows Explorer and copy
the files for back up to the external memory device.
4.2.4
It is recommended that retrieved data be archived and permanently stored at a secure on-shore
location of the client’s discretion.
4.3
Manual FPB DAU Data Retrieval
4.3.1
FPB distance data is acquired and stored by the FPB DAU and continuously transmitted to the DAC.
In the event that communication between the FPB DAU and DAC is interrupted or lost it will be
necessary to perform a manual download of the data from the FPB DAU.
4.3.2
This section describes how to manually retrieve data from the FPB DAU. Note that it will be necessary
to perform the process for each of the FPB DAU units.
The FPB Data Acquisition Units must be electrically isolated before any hardware
component is disturbed or removed. Failure to do so could result in serious injury or
death.
Note that the units are supplied by two 220VAC UPS sources from the platform.
4.3.3
Locate the Campbell Scientific CR1000 data logger in the FPB DAU enclosure. The Compact Flash
(CF) card which stores the data is located within Campbell Scientific CFM100 compact flash module,
similar to that shown in Figure 4.1.
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4.3.4
Press the removal button identified in Figure 4.1 and wait for the LED to turn green.
Figure 4.1: CFM100 compact flash module
4.3.5
Press the card eject button at the top of the card slot as shown in Figure 4.2. The CF card will be
ejected.
Figure 4.2: Eject CF card
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4.3.6
Remove the CF card from the slot.
4.3.7
Using a CF card reader, back up the data from the ejected CF card to a secure storage device such
as a CD/DVD/USB.
4.3.8
The data has now been successfully retrieved.
4.3.9
The retrieved data should be converted to a more usable format such as CSV using the PC200W
CardConvert software. From the DAS desktop, select Start -> All Programs -> Campbell Scientific ->
PC200W. Select Card Convert from the Tools drop down menu as shown below.
Figure 4.3: PC200W Card Convert software
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4.3.10
This opens a new window as shown in Figure 4.4.
Figure 4.4: CardConvert window
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4.3.11
Select the directory to which the retrieved data has been saved using the Select Card Drive tab.
Select a new folder to which the converted data should be saved using Change Output Dir. Click the
Destination File Options tab to open a new window as shown below.
Figure 4.5: Destination file options
4.3.12
Using the File Format drop down menu select Array Compatible CSV. Click the Time Settings tab to
open a new window as shown in Figure 4.6.
Figure 4.6: Time settings
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4.3.13
Select an Interval of 0d 01h 00m and click OK.
4.3.14
Click OK to confirm the selection in the Destination File Options window shown in Figure 4.5. Press
Start Conversion in the Card Convert window. The conversion will now begin.
4.3.15
When the conversion is complete the CF card should be re-formatted and made ready as a spare for
future use. The following instructions describe how to re-format the CF card.
All data on the card will be permanently deleted when the card is re-formatted.
4.3.16
Insert the card into a card reader and connect to a Windows PC. Wait for the PC to find the new drive.
4.3.17
Start My Computer. Right click on the appropriate removable drive to bring up the pop-up window.
Select Format.
Figure 4.7: Drive selection
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4.3.18
Choose FAT32 under file system. Ensure Quick Format is NOT selected. Press Start and wait for the
card to be formatted.
Figure 4.8: Format menu
4.3.19
Open the hinged cover and insert the card, ensuring that the CF card “Main” label faces towards the
hinge. Ensure the card is fully inserted. Close lid and secure screw.
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5.
MAINTENANCE
5.1
DAC Disk Utilisation and data storage
5.1.1
The SMS generates a large quantity of recorded data (approximately 150 GB per month – refer to
Table 4.1 for more detail). It is highly recommended that platform staff periodically check the Summary
screen of the SMS described in Section 3.4 and note the percentage utilisation of the Disk C Partition
and Disk D Partition identified below.
Figure 5.1: Percentage disk utilisation
5.1.2
It is recommended that data is periodically retrieved and archived and that a procedure is put in place
to maintain adequate disk space on the DAC such that data is not lost in the event that the hard disks
become full.
5.2
Master DAS
5.2.1
A routine maintenance and inspection schedule for the Data Acquisition System (DAS) cabinet should
be implemented. This section describes the routine checks that should be performed, and identifies
those items that require regular maintenance and calibration. Routine tasks include:
5.2.2
■
Visual inspection at least once per month
■
Calibrating the Campbell Scientific CR1000 data logger
A typical inspection should consist of a check that all system components are operating normally,
which include:
■
Signal conditioning units should be powered on as indicated by lit LED’s.
■
The miniature circuit breakers should be in the ON position.
■
The ADAM 4520 units should be powered on and transmitting data as indicated by lit and flashing
LED’s.
■
The Campbell Scientific CR1000 data logger should be powered (there is no visual indicator for
this on the unit).
■
The PC should be powered on as indicated by a lit green LED.
■
The PC cooling fans should be operational and audible.
■
A general check for signs of damage may also be performed.
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5.2.3
Manufacturer guidelines specify that the Campbell Scientific CR1000 data loggers should be removed
and re-calibrated once every 2 years. For the four FPB DAU CR1000 data loggers the consequences
of not recalibrating are likely to be minimal. For the tiltmeter CR1000 data logger the consequences of
not recalibrating are that over time the data logger may no longer meet the performance specification
specified by the manufacturer. The system will still continue to operate if the calibration period expires.
The DAS cabinet must be electrically isolated before any hardware
component is disturbed or removed. Failure to do so could result in serious
injury or death.
Note that the cabinet is supplied by a 220VAC UPS from the platform.
5.2.4
When isolating the DAS cabinet from the UPS it is recommended that the DAC is first manually shut
down before the power is removed.
5.2.5
It is strongly recommended that Fugro be consulted before platform personnel disturb the hardware or
wiring within the cabinet other than to carry out the routine inspection, maintenance, and calibration
procedures outlined above.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
5.3
FPB DAU
The FPB Data Acquisition Units must be electrically isolated before any hardware
component is disturbed or removed. Failure to do so could result in serious injury or
death.
Note that the units are supplied by two 220VAC UPS sources from the platform.
5.3.1
A routine maintenance and inspection schedule for the Friction Pendulum Bearing (FPB) Data
Acquisition Unit (DAU) should be implemented. This section describes the routine checks that should
be performed, and identifies those items that require regular maintenance and calibration. Routine
tasks include:
5.3.2
5.3.3
■
Visually inspecting the FPB DAU enclosure once per month;
■
Calibrating the Campbell Scientific CR1000 data loggers.
A typical inspection should include:
■
The CR1000 data loggers should be powered;
■
The CF cards should be firmly in place in the CFM100 compact flash module;
■
The power supply units should be powered on as indicated by lit LED’s;
■
A general check for signs of damage may also be performed.
Manufacturer guidelines specify that the Campbell Scientific CR1000 data loggers should be removed
and re-calibrated once every 2 years. For the four FPB DAU CR1000 data loggers the consequences
of not recalibrating are likely to be minimal. For the tiltmeter CR1000 data logger the consequences of
not recalibrating are that over time the data logger may no longer meet the performance specification
It is strongly recommended that Fugro be consulted before platform personnel disturb the hardware or
wiring within the cabinet other than to remove or replace CF cards in the data loggers, or when
removing the data loggers for re-calibration.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
5.4
Accelerometer and Tiltmeter Sensors
5.4.1
A routine inspection and maintenance procedure, or periodic re-calibration of the accelerometer and
tiltmeter sensors is not required.
5.4.2
Note that the accelerometers and tiltmeters have an initial offset which is not removed by the software.
It is important to note this when performing data processing.
5.4.3
Each of these sensors is housed in an explosion proof, acid resistant, stainless steel enclosure. These
enclosures are not subject to corrosion if undamaged and operating under normal circumstances. No
routine maintenance of the enclosures is necessary. However, if it is safe to do so it is recommended
that a routine inspection of the enclosures is performed. Note that the enclosures should never be
opened.
5.4.4
If excessive dirt or build up on the enclosures is found they may be cleaned with fresh water. Pressure
washing equipment should not be used as it may damage the seals and compromise the flame path of
the enclosure. If necessary, copper grease should be applied to the lid bolts, bolt threads, and tapped
holes.
5.4.5
A general check for signs of damage to the enclosures, glands, or cables should also be performed.
5.5
Displacement Sensors
5.5.1
A routine inspection and maintenance procedure, or periodic re-calibration of the displacement
sensors is not required.
5.5.2
The sensors are housed in flame proof, stainless steel enclosures with a glass window. A small
heating element is housed within the enclosure to keep the glass free from ice. A routine maintenance
schedule of these enclosures should be implemented to ensure that there is no build-up of dirt,
grease, or ice on the enclosure window. Failure to do so will result in inaccurate distance
measurements.
5.5.3
The distance sensor alarms described in Section 3.4 will provide platform staff with an indication of ice
build-up that may occur between scheduled maintenance and inspection dates. Should an alarm be
triggered the enclosures should be inspected, and if a build-up of ice is found it should be removed.
5.5.4
Heated targets will be used with the distance sensors. The targets should be regularly inspected and
kept free from any build-up of ice.
5.5.5
A general check for signs of damage to the enclosures, glands, or cables should also be performed.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
6.
TROUBLESHOOTING
Hardware units must be electrically isolated before any component is disturbed or
removed. Failure to do so could result in serious injury or death.
Note that the DAS and FPB DAU are supplied by 220VAC platform UPS supplies.
6.1
Overview
6.1.1
In most cases, it is strongly recommended that Fugro be immediately contacted upon the discovery of
a fault in the system (see Section 8 for details). However, a few basic fault-finding steps which may be
carried out by platform staff are listed in this section.
6.2
General Troubleshooting Steps
6.2.1
If the display is not showing anything or the software is not responding, check the communications
and (Keyboard-Video-Mouse) KVM cables to ensure they are correctly connected to the PC. Note that
the display may be on standby. Check that the Data Acquisition Computer (DAC) is powered on.
6.2.2
If the DAC is not responding, a loss of power may be suspected. Should this occur the following steps
should be taken: confirm the status of UPS power to the Data Acquisition System (DAS), confirm that
the main DAS switch is in the ON position, and confirm that the IEC lead at the back of DAC is
connected.
6.2.3
If the status page shows that the Disk C Partition or Disk D Partition is approaching 100% utilisation
the data retrieval steps described previously should be followed. Once the recorded data has been
successfully backed up and archived in a safe location, it should be deleted from the DAC hard drive
to clear disk space. It is highly recommended that this is performed periodically.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
6.3
Accelerometer Troubleshooting Checklist
6.3.1
Possible symptoms:
6.3.2
■
ADC device status showing as FAILED on system display summary tab;
■
Acceleration data files only contain small amplitude noise;
■
No acceleration data.
Troubleshooting checklist:
i.
Confirm Fylde signal conditioning rack in DAS cabinet is powered on. The green LED on the front
of the rack should be powered on. Check the power switch at the back of the rack is in the on
position.
ii.
Confirm the ADC cable running from the back of the Fylde signal conditioning rack to the back of
the PC is connected at both ends.
iii. Referring to the system wiring diagram RUSD 3150 E ID T2 0001 perform voltage checks on the
terminal rail at the rear of the cabinet and in the sensor enclosures (if accessible).
iv. Check for loose wiring.
6.3.3
If acceleration data files are found to contain high levels of noise investigate for sources of vibration in
close proximity to the sensor locations.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
6.4
FPB DAU Troubleshooting Checklist
6.4.1
Possible symptoms:
6.4.2
■
One or more FPB device status showing as FAILED on system display summary tab;
■
No FPB data.
Troubleshooting checklist:
i.
Confirm FPB DAU enclosure power supply is on. Note that this cabinet is fed from two separate
220 VAC power supplies.
ii.
Within the FPB DAU ensure all of the power supply units are powered on.
iii. Confirm that the LEDs on the ADAM serial converter units in both the FPB DAU enclosure and
DAS cabinet are flashing to indicate data transfer.
iv. Referring to the system wiring diagram RUSD 3150 E ID T2 0001 confirm that the system voltages
in the FPB DAU are as expected.
v.
Check for loose wiring.
vi. Check FPB datalogger program and internal battery voltage.
a) Connect to each of the four dataloggers in the FPB DAU via the RS232 port. To
achieve this disconnect the serial cable between the logger RS232 port and ADAM
4520 port at the ADAM unit. Another 9-way serial cable may be of use to act as an
extension. Connect to the logger using PC200W. Baud rate is 38,400; 8 data bits; 1
stop bit; no parity.
b) Confirm logger program C30426LP002.cr1 is installed and running. If it is not installed
install it now.
c) Within PC200W navigate to Datalogger > Station Status > Status Table. If the
datalogger internal battery voltage is below 3.3 V the internal battery should be
replaced. If the datalogger battery voltage is below 3.3 V and the power supply to the
system is removed for a prolonged period of time there is a risk that the datalogger will
lose its internal programming.
vii. Inspect the FPB sensors. This is not a simple task as access to the FPB sensors is limited to the
summer months and requires advance planning. A build-up of ice on the heated displacement
sensor target, a build-up of dirt or grease on the displacement sensor enclosure window, or a fault
with the displacement sensor may be suspected. Should this occur the following steps should be
taken: check for a build-up of ice on the heated displacement sensor target, check for a build-up of
dirt, grease or ice on the displacement sensor enclosure window, confirm the power supply to the
displacement sensor, inspect the field cable, gland, and enclosure for obvious signs of damage.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
6.5
Tiltmeter Troubleshooting Checklist
6.5.1
Possible symptoms:
6.5.2
■
Tilt-logger device status showing as FAILED on system display summary tab;
■
No tilt data.
Troubleshooting checklist:
i.
Confirm CR1000 tilt logger in DAS cabinet is powered on.
ii.
Confirm that the serial cable coming from the datalogger to the back of the PC is connected as per
the system wiring diagram RUSD 3150 E ID T2 0001.
iii. Referring to the system wiring diagram RUSD 3150 E ID T2 0001 confirm that the system voltages
are as expected.
iv. Check for loose wiring.
v.
Check tiltmeter CR1000 datalogger program and internal battery voltage.
a) Connect to the dataloggers in the DAS cabinet via the RS232 port. Connect to the
logger using PC200W. Baud rate is 9,600; 8 data bits; 1 stop bit; no parity.
b) Confirm logger program C30426LP001.cr1 is installed and running. If it is not installed
install it now.
c) Within PC200W navigate to Datalogger > Station Status > Status Table. If the
datalogger internal battery voltage is below 3.3 V the internal battery should be
replaced. If the datalogger battery voltage is below 3.3 V and the power supply to the
system is removed for a prolonged period of time there is a risk that the datalogger will
lose its internal programming.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
7.
MISCELLANEOUS DATA PROCESSING NOTES
7.1.1
Acceleration data is offset from zero. No correction is applied for this in the data.
7.1.2
Inclination data from the tiltmeters is offset form zero due to the installation angle. No correction is
applied for this in the data
7.1.3
As-installed offsets were applied to the FPB displacement sensors during commissioning. These can
be found in Table 2.10. The offsets were based on a short period of data following during
commissioning so may have a slight offset from zero.
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
8.
CONTACT DETAILS
8.1.1
Fugro can be contacted as shown below.
E-mail
FGEOSG.fsmsupportservices@fugro.com
Fugro GB Marine Ltd.
1 Queenslie Court
Summerlee Street
Glasgow, G33 4DB
United Kingdom
Tel.
+44 141 774 8828
Fax.
+44 141 774 6112
Fugro Document No. C30426J001R4 (172676J001R2)
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EXXON NEFTEGAS LTD.
SYSTEM OPERATING AND MAINTENANCE MANUAL
BERKUT STRUCTURAL AND BEARING MONITORING SYSTEM
A.
APPENDIX
A.1
ENL POST EARTHQUAKE EVENT ACTIONS
[To be supplied by ENL]
Fugro Document No. C30426J001R4 (172676J001R2)
Appendix