wireline logging 101
TRANSCRIPT
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Wireline Logging 101
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Outline
Preface
Categories
Principles
Main contractors
NorthPars applications
MDP
s main issues
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Preface
Whats wireline logging
First wireline log-86 years ago by Conrad
and Marcel Schlumberger
Why wireline logging Fast rate
Wide range of depth
Fast and accurate decisions
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Consists of deep reading (Rt) and
shallow reading (Ri) resistivity devices
Deep and shallow measurements are
made simultaneously, attwo different
frequencies
Usually run with a Rxo measurement
(MSFL) attached to the lower portion of
the tool
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Category
Resistivity
Spontaneous potential
Lateral resistivity
Induction
Imaging
Sonic
Conventional sonic
Full wave sonic
CBL
Imaging
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Category-cont.
Nuclear
Gamma ray
Natural gamma ray spectral
Neutron
Density
NMR-Nuclear Magnetic Resonance
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VSP
Sidewall coring
Percussion
Rotary
Formation pressure testing and sampling
Old
New generation
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Side wall coring
Percussion
Rotary
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Gamma ray application
- Determination of
reservoirthickness
- Lithology indicator
- Correlation
between wells
- Estimation of shale
volume
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Main contractors
Schlumberger
CSU
MAXIS 500
Halliburton
EXCELL 2000
LOGIQ
Baker Atlas
CLS (3700)
ECLIPS (5700)
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Main contractors-cont.
Weatherford
Phase
Warrior
CS400
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Populartools
Resistivity
Schlumberger
AIT
Halliburton
Baker Atlas
Weatherford
Sonic
Schlumberger
Halliburton
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SP Log
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Caliper Log