Post on 30-Dec-2021
Applied
Reservoir
Geology
Chapter 12
Basics of Wireline Logging & Interpretation
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Applied
Reservoir
Geology
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Applied
Reservoir
Geology
The Early Years—1912–1927
1912: Conrad conceives the
idea for electrical
measurements
1919 M l j i hi
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1919: Marcel joins his
brother–first work in
Normandy
1921: Office opens in Paris,
rue Saint–Dominique
1927: First electrical
downhole log in
Pechelbronn, France
Applied
Reservoir
Geology
First well logs recorded in 1927
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Applied
Reservoir
Geology
Modern Logging Truck
Modern Surface equipment :
High powered computers
Controls downhole logging
Changes signal configuration to
obtain acquisitions
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obtain acquisitions
Includes surface database to
optimise results and for well0to0well
correlations
Used also for forward0modelling
Includes also all the well
configurations0 depth, casing,
formations, etc..
Applied
Reservoir
Geology
Logging Tools Modern ToolsSensors used in modern logging:
Electrical
Electromagnetic
Magnetic Flux Induction
A i
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Acoustic
Ultrasonic
Nuclear: Neutron
Nuclear: γ- Rays
Nuclear: Nuclear Magnetic
Resonance Imaging (MRI)
Every potential signal source have been used in modern0day logging
Applied
Reservoir
Geology
16001600
Modern logs have more
measurements but the
principle is the same
Shading is often added to
k th l i
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G am m a R ay (G R )
0 (G A P I) 150
S P (S P )
0 (M V ) 200
FX N D
50 (P U ) 0
1:220 Ft P ad
-180 180
R t from H A LS
R X 18
1 1000
1 1000
Rt from A ITH
1 (O H M M ) 1000
M ud R es ist iv ity f rom H A LS
1 1000
M ud R e s istiv ity from A ITH
1 (O HM M ) 1000
A H TP R
5.007.75
12 .0118 .6228 .8544 .7269 .81
107 .43166 .51258 .08400 .00
90 0 90
1700
G am m a R ay (G R )
0 (G A P I) 150
S P (S P )
0 (M V ) 200
FX N D
50 (P U ) 0
1:220 Ft P ad
-180 180
R t from H A LS
R X 18
1 1000
1 1000
Rt from A ITH
1 (O H M M ) 1000
M ud R es ist iv ity f rom H A LS
1 1000
M ud R e s istiv ity from A ITH
1 (O HM M ) 1000
A H TP R
5.007.75
12 .0118 .6228 .8544 .7269 .81
107 .43166 .51258 .08400 .00
90 0 90
1700
G am m a R ay (G R )
0 (G A P I) 150
S P (S P )
0 (M V ) 200
FX N D
50 (P U ) 0
1:220 Ft P ad
-180 180
R t from H A LS
R X 18
1 1000
1 1000
Rt from A ITH
1 (O H M M ) 1000
M ud R es ist iv ity f rom H A LS
1 1000
M ud R e s istiv ity from A ITH
1 (O HM M ) 1000
A H TP R
5.007.75
12 .0118 .6228 .8544 .7269 .81
107 .43166 .51258 .08400 .00
90 0 90
1700
make the log curves easier
to read.
Additional outputs can be
made:
Invasion Profiles
Facies
Layering
Laye
ring
Fac
ies
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Applied
Reservoir
Geology
�����!��������� �������"Wireline Logging.
LWD (Logging While Drilling)
Logging on Drill Pipe (TLC) � ����
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Applied
Reservoir
Geology
Copyright 2009, NExT, All rights reserved
Applied
Reservoir
Geology
Copyright 2009, NExT, All rights reserved