SCHLUMBERGER INTERNSHIP
2022
Drilling And Measurement
Presented By:
Malik M. Ali Awan
Presented To:
Shaheer Illyas
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Note: This presentation is only for internship it does not contain all the D&M Services.
LIFE SAVING RULES (LSR)
Bypassing Safety Controls
Confined Space
There are nine
(9) Life Saving
Rules (LSR)
of
Schlumberger.
Energy Isolation
Hot Work
Line of Fire
Safe Driving Rules
Safe Mechanical Lifting
Work Authorization
Working at Height
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SCHLUMBERGER SEGMENTS
Reservoir
Production
Group
Drilling and
Measurements
Cementing
Schlumberger
is divided into
seven (7)
segments.
Slickline
Wireline
Well Testing
Coiled Tubing
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INTRODUCTION TO D&M
Drilling and Measurement is one of the segments of Schlumberger.
This segment is further
divided into four (4)
sub-segments.
Surface System
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MWD, LWD
Motor
RSS
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FIRST SUB-SEGMENT
SURFACE SYSTEM
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SURFACE SYSTEM
A surface system is a group of components that can be moved
quickly from rig to rig as needed.
The purpose of the surface system is to collect and process data
about the drilling parameters during the drilling operation.
Major components of Surface System are:
• Sensors
• Computers
• Logging Unit
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SENSORS
The surface system uses surface sensors to collect data that is used to
monitor the drilling operation.
Surface Sensors include:
Drawworks Encoder (DES)
Clamp-Line Tensiometer (CLT)
Signal Pressure Transducer (SPT)
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SENSORS
1) Draw works Encoder (DES)
• To measure depth, D&M installs a drawworks encoder. The drawworks encoder is connected
to the draw works shaft. The rotating drawworks shaft spools out and reels in the fast line to
raise and lower the traveling block.
2) Clamp-Line Tensiometer (CLT)
• The clamp-line Tensiometer is installed on the deadline just above the anchor. Tension, caused
by the weight of the drill string, forces the deadline against the sensor’s load cell. The greater
the tension, the greater the pressure on the cell.
3) Signal Pressure Transducer (SPT)
• The signal pressure transducer converts the mud pulses into an analog signal and sends it to
the D&M surface computer for processing.
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COMPUTERS
The computer is an essential part of the surface system. It
contains software that takes in data from the surface
sensors and performs a variety of functions on that data.
The computers used inside the logging unit are called
IWS (IDEAL work station) computers.
The logging unit contains two IWS computers, both of
which have MaxWell and HSPM.
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COMPUTERS
Convert signal data from digital-to-binary to count to engineering form as needed.
Some
important
functions
performed
by IWS
computers
Store data
Demodulate MWD signals from downhole.
Convert data to useful information and displays.
Provide communication with the downhole tool at the surface when programming
the tool or receiving data stored in the tool.
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SOFTWARE'S
• Toolscope is used to
program the tool.
Toolscope
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HSPM
• HSPM is used for
digitalizing and
demodulating the
signals. It is also used
for the acquisition of
the tool.
• Maxwell software
converts the data
receiving from HSPM
and then computes it.
Maxwell
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LOGGING UNIT (LLU & OLU)
o The logging unit houses the surface system computers and other equipment, including
the safety barrier enclosure (SBE) and the advanced signal acquisition processor
(ASAP).
o The logging unit provides office space for Drilling & Measurements (D&M)
personnel.
There are two (2) types of Logging Unit.
1.
Land Logging Unit (LLU)
2.
Offshore Logging Unit (OLU)
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LLU PREPARATION
1) Connect one end
of the sensor cables
with each sensor
separately.
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2) Connect other end
of the sensor cables
with the junction
box.
3) Take an umbellical
cable. One end of the
umbellical cable is
connected with the
junction box and
other end is
connected with the
ESAM.
4) After all the
connections are made
than Toolscope
software is run to
modulate the signals
generated by the
sensors.
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ACQUISITION & PROGRAMMING SYSTEM
Sensors
ROP (Read Out Port)
UJB
Umbellical
Cable
Acquisition
System
Sensor
Cables
LTB Modem
TSIM 2
Fire wire
Cable
LTB Cable
Programming System
ESAM
Ethernet
IP
MCMP
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SECOND SUB-SEGMENT
MEASUREMENT WHILE DRILLING
AND
LOGGING WHILE DRILLING
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MEASUREMENT WHILE DRILLING
o MWD is another sub-segment of D&M that is taking measurements while the process
of drilling is underway.
o MWD is considered as power bank, telemetry, direction and inclination indicator.
o It provides real time data and information.
Optional measurements include:
 Gamma Ray
 D&I
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MWD TOOLS
SLIMPulse
Following
are the some
important
MWD
Tools:
IMPulse
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Telescope
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SLIMPULSE
Largest generation of
MWD Tools which
replaces SLIM-1 and
Sharp Tools.
• SLlM-1
• Manual Demodulation
• Non-Continues D&I
• Sharp Tools
• Reliability issues
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FEATURES OF SLIMPULSE
Retrievable & Replaceable
SLIMPulse is both retrievable and replaceable. Failed component is retrieved via wireline.
Robust & Relaiable
SLIMPulse is capable of withstanding temperature upto 175℃.
Wide Flow Range
SLIMPulse is capable of operating at flow rates of ranging 35 gpm in smaller holes to 1200 gpm in larger holes.
Increased Operative Life
Over 300 hours operating life of batteries.
Anti-Jamming Capacity
Rotor crushes debris as it passes through the modulator.
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COMPONENTS OF SLIMPULSE
SlimPulse String
consists of 3 assemblies
SLIMPulse Modulator
Assembly (SPMA)
SLIMPulse Electronic
Cartidge (SPEC)
SLIMPulse Battery
Assembly (SPBA)
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COMPONENTS OF SLIMPULSE
SLIMPulse Modulator
Assembly (SPMA)
SLIMPulse Electronic
Cartidge (SPEC)
SLIMPulse Battery
Assembly (SPBA)
Tool Data Telemetry
Main Module
SPBA battery packs supplies power
for the entire SLIMPulse Tool
Power Generation
Universal Gamma Ray Module
(UGRM)
Close Loop Control
Universal Direction & Inclination
Module (UDIM)
Survey on Connection (SOC) Logic
Anti-Jamming Capacity
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Inductive
Stringer
Capacitor
UDIM
SPBA
UGRM
SPMA
Main Module
Batteries
Electronics
Receiver
Motor
Gear Box
Modulator
SLIMPULSE ASSEMBLY
SPEC
ARC Link
NMDC
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TELESCOPE
Telescope is one of the MWD measurement tool. Some of its applications are
given below:
Well
Placement
Geometric
Drilling
Optimization
Safety
Formation
Evaluation
Allow Multiple Measurement
Geosteering
Time-saving
Drilling Efficiency
Difficult Environments
Flexibility
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TELESCOPE COMPONENTS
Telescope
consists of the
following
components:
Modulator Assembly
(MMA)
Electronics Assembly
(PMEA)
Turbine Assembly
(MTA)
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TELESCOPE ASSEMBLY
Modulator Assembly
(MMA)
Electronics Assembly
(PMEA)
Turbine Assembly
(MTA)
Collar
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COMPARISON
Features
SLIMPulse
IMPulse
PowerPulse/Telescope
Retrievable
Collar Based
Collar Based
Tool Size
SPMA: 1 7Τ8 “- 4 5Τ16 “ 4 3Τ4 “ OD
Collar: 2 3Τ8 “ – 9 1Τ2 “
> 4 3Τ4 “ OD
Tool Power
Battery Powered
Turbine Powered
Turbine Powered
BHA Configuration
Combinable with
ARC, MCR, DSPA,
RSS
Combinable with all 4 3Τ4 “
LWD Tools
Combinable with all 6
3Τ “ to 9 1Τ “ LWD
4
2
Tools
Measurements
D&I, Toolface, GR
D&I, Toolface, GR, RES
D&I, Toolface, GR,
IWOB
Clock Battery
No
Yes
Yes
Tool Memory
256 KB
2 MB or 4MB
2 MB
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LOGGING WHILE DRILLING
LWD is a technique for lowering tools into wellbore located in the subsurface and acquiring different logs.
Resistivity
Formation
evaluation
measurements,
such as:
Density
Porosity
Sigma
Spectroscopy
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TYPES OF NUCLEAR TOOLS
ADN-Azimuthal
Density
Neutron
ADN 4
ADN 6
ADN 8
SADN 8
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ADN-AZIMUTHAL DENSITY NEUTRON
ADN is one of the LWD tool. It measures following things:
Density
• Azimuthal density, Photoelectric Effect
Porosity
• Neutron Porosity
Caliper
• Ultra Sonic Caliper
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APPLICATIONS OF MEASUREMENTS
Application of Density & PEF
• Photoelectric Effect (PEF) is an indicator of lithology.
• Density can also be used to calculate the porosity.
Application of Neutron-Porosity Measurement
• The amount of retuning neutron largely depends on the Hydrogen present in the mud &
formation.
Application of US Measurement
• US measurement can be used to compute hole size.
• Used in well bore stability, completions.
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ADN COMPONENTS
Neutron
Detectors
FACT
Coils
Batteries
Ultrasonic
sensor
AND-6
major
components
are:
Destiny
Detectors
Neutron
Source
Electronic
Carrier
Density
Source
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Neutron/Density Source
Helium Tubes
Extender
Tool Bus
Batteries
Ultrasonic Sensor
Neutron/Density Detectors
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Electronic Chassis
FACT Coil
ADN ASSEMBLY
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THIRD SUB-SEGMENT
MUD MOTORS
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POWERPAK MOTORS
The PowerPak motors are Positive Displacement Motor (PDM) steerable
systems.
Mud Motor is always placed in the drill string to provide additional
power to the drill bit while drilling.
The main application of a PDM is horizontal drilling.
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SECTIONS OF MOTOR
Top Sub
It has several objectives starting from being a simple crossover to a sub covering
several functionalities. Main function of top sub is that it includes rotor catcher.
Power
Section
This section consists of a rotor and stator that converts the hydraulic energy of
drilling fluid into mechanical energy.
Transmission
Section
This section transmits rotary drive and torque from the power section to the bearing
section. It also includes Adjustable Bend Housing (ABH).
Bearing
Section
It includes the axial and radial loads and transmits the torque to the drill bit from
the transmission section through drive shaft.
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MOTOR ASSEMBLY
Transmission Assembly
Top Sub
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Power Section
SAB
Drive Shaft
Bearing Section
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FOURTH SUB-SEGMENT
ROTARY STEERABLE SYSTEM
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ROTARY STEERABLE SYSTEM
 Rotary Steerable System (RSS) provide services during the directional drilling, side tracking, fault control. It
is like a deflection device.
 Directional Drilling:
o Directional Drilling is the deviation of the well trajectory from its original path.
 Advantages of Directional Drilling:
 Directional Drilling has several advantages in this modern era:
o Side tracking
o Inaccessible Locations
o Fault Control
o Multiple Wells
o Salt Domes
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ADVANTAGES OF RSS
Advantages of
RSS are:
Continuous drill
string rotation
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Better hole
cleaning
High ROP
Optimized
drilling
parameters
Smoother in
gauge borehole
without the
spiraling
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POWER DRIVE
• Lower/Upper Torquer
• Radial Bearings
• Hangers
• Mulehoe
• Antenna
• Pressure case
• Analogue Reciever
• CPU Board
• PSU Board
• Modem Moard
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• Filter Assembly
• Spider Assembly
• Control Shaft
• Pade
• Extension Sub
• Rotary Valve Assembly
Control
Unit
Bias Unit
E-Mag
Receiver
Electronic
Chasis
• 3 Accelerometers &
Magnetometers
• 1 Roll Gyro Sensor
• Triaxial Shock Sensor
• 2 Collar Magnet Sensors
• 1 Temperature Sensr
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POWER DRIVE ASSEMBLY
E-Mag Receiver
Receiver Collar
Receiver
Control Unit
Antenna
Upper Torquer
Collar Control
Pressure Housing
Bias Unit
Bearing Housing
Lower Torquer
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Muleshoe
Connection
Filter Assembly
Pad
Kicker
Bit
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