Schlumberger

Mnemonics, Tools, CPET


CodeCPET
TechnologyCasing_Inspection
DisciplineCompletion
MethodWIRELINE
DescriptionCorrosion Protection Evaluation Tool

Related channels
ChannelDescription
ADRE A - Housing Potential Difference
AFOD Axial Fluid Ohmic Drop
AHOU Potential Difference Between A Electrode and Housing
AIA6 Average of 6 ft Axial Current
AIAX Average Axial Current
ASR2 A - Ref2 Potential Difference
ASRE A - Surface Ref Potential Difference
CC1C Isolation AMP Offset for Center Electrode
CC1U Isolation AMP Offset for Upper Electrode
CC2C Isolation AMP, D3-A3 Current, Center Electrode
CC2U Isolation AMP, D3-A3 Current, Upper Electrode
CCTE Temperature
CDR6 Radial Current Density 6 ft
CDRA Radial Current Density
CDRB Radial Current Density For Bad Contact
CFOD Circumferential Fluid Ohmic Drop
CIA6 Corrected Average 6' Sampled Axial Current
CIAX Corrected Average Axial Current
CR Corrosion Rate
CR6 Corrosion Rate 6 ft
CRB Calibrated Relative Bearing
DEPS Station Depth
EIAX Axial Current E
ENCR Normalized Casing Resistance E
ENVO Normalized Potential Difference E
ERCO Contact Resistance E
FIAX Axial Current F
FNCR Normalized Casing Resistance F
FNVO Normalized Potential Difference F
FOD1 Fluid Ohmic Drop 1
FOD2 Fluid Ohmic Drop 2
FOD3 Fluid Ohmic Drop 3
FRCO Contact Resistance F
GIAX Axial Current G
GNCR Normalized Casing Resistance G
GNVO Normalized Potential Difference G
GRCO Contact Resistance G
IAAB Average Of Axial Current For Bad Contact
IAXA Averaged Axial Current
IAXX Axial Current X
IAXY Axial Current Y
IAXZ Axial Current Z
IC2C Isolation AMP, D2-A2 Current, Center Electrode
IC2U Isolation AMP, D2-A2 Current, Upper Electrode
IDV6 Average Integrated 6 ft Delta V
IDVA Integrated Delta V Average
IDVW Integrated Delta V W
IDVX Integrated Delta V X
IDVY Integrated Delta V Y
IDVZ Integrated Delta V Z
IIAX Internal Axial Current
IRDC IR Drop along Casing
JIAX Axial Current J
JNCR Normalized Casing Resistance J
JNV Normalized Potential Difference J
JNVO Normalized Potential Difference J
JRCO Contact Resistance J
KIAX Axial Current K
KNCR Normalized Casing Resistance K
KNV Normalized Potential Difference K
KNVO Normalized Potential Difference K
KRCO Contact Resistance K
LCIX Localized Corrosion Index X
LCIY Localized Corrosion Index Y
LCIZ Localized Corrosion Index Z
LCRX RX Raw
LCRY RY Raw
LCRZ RZ Raw
LFV1 Logging Fluid Voltage 1 (RA1 - RB1)
LFV2 Logging Fluid Voltage 2 (RB1 - RC)
LFV3 Logging Fluid Voltage 3 (RC - RD)
LFV4 Logging Fluid Voltage 4 (RA1 - RA2)
LFV5 Logging Fluid Voltage 5 (RB1 - RB2)
LIAX Axial Current L
LNCR Normalized Casing Resistance L
LNV Normalized Potential Difference L
LNVO Normalized Potential Difference L
LRCO Contact Resistance L
MIAX Axial Current M
MNCR Normalized Casing Resistance M
MNV Normalized Potential Difference M
MNVO Normalized Potential Difference M
MRCO Contact Resistance M
NAV6 Average if 6 ft Potential Difference
NIAX Axial Current N
NNCR Normalized Casing Resistance N
NNV Normalized Potential Difference N
NNVO Normalized Potential Difference N
NRCO Contact Resistance N
NTCR Normalized Thickness from Casing Resistance
NVA6 Average of 6 ft Potential Difference
NVAB Average Of Normalized Potential Diff For Bad Contact
NVAV Average of 2 ft Potential Difference
NVW1 Normalized Potential Difference W
NVX1 Normalized Potential Difference X
NVY1 Normalized Potential Difference Y
NVZ1 Normalized Potential Difference Z
OIAX Axial Current O
ONCR Normalized Casing Resistance O
ONV Normalized Potential Difference O
ONVO Normalized Potential Difference O
ORCO Contact Resistance O
QFLG Quality Indicator Flag
R1R2 Ref1 - Ref2 Potential Difference
RAV Averaged Casing Resistance
RAV6 Average of 6 ft Casing Resistance
RCOW Contact Resistance W
RCOX Contact Resistance X
RCOY Contact Resistance Y
RCOZ Contact Resistance Z
RESJ Casing Resistance J
RESK Casing Resistance J
RESL Casing Resistance L
RESM Casing Resistance M
RESN Casing Resistance N
RESO Casing Resistance O
RESX Casing Resistance X
RESY Casing Resistance Y
RESZ Casing Resistance Z
RRCO Contact Resistance R
RV0 Precision DC AMP Offset in Step 0
RV1 Precision DC AMP + Relay Offset in Step 1
RV1C Step 1 Offset for Center Electrode
RV1U Step 1 Offset for Upper Electrode
RV3 Precision DC AMP + Relay Offset in Step 3
RV3C Step 3 Offset for Center Electrode
RV3U Step 3 Offset for Upper Electrode
RV4 Precision DC AMP + Relay Offset in Step 4
RV5 Precision DC AMP + Relay Offset in Step 5
RVC0 Current Amplifier Offset in Step 0
RVC1 Current Amplifier Offset in Step 1.1
RVC2 Current Amplifier Offset in Step 2
RVE1 E Potential Difference in Step 1
RVE2 E Potential Difference in Step 2
RVE3 E Potential Difference in Step 3
RVF1 F Potential Difference in Step 1
RVF2 F Potential Difference in Step 2
RVF3 F Potential Difference in Step 3
RVG1 G Potential Difference in Step 1
RVG2 G Potential Difference in Step 2
RVG3 G Potential Difference in Step 3
RVJ1 J Potential Difference in Step 1
RVJ2 J Potential Difference in Step 2
RVJ3 J Potential Difference in Step 3
RVK1 K Potential Difference in Step 1
RVK2 K Potential Difference in Step 2
RVK3 K Potential Difference in Step 3
RVL1 L Potential Difference in Step 1
RVL2 L Potential Difference in Step 2
RVL3 L Potential Difference in Step 3
RVM1 M Potential Difference in Step 1
RVM2 M Potential Difference in Step 2
RVM3 M Potential Difference in Step 3
RVN1 N Potential Difference in Step 1
RVN2 N Potential Difference in Step 2
RVN3 N Potential Difference in Step 3
RVO1 O Potential Difference in Step 1
RVO2 O Potential Difference in Step 2
RVO3 O Potential Difference in Step 3
RVP1 P Potential Difference In Step 1
RVQ1 Q Potential Difference In Step 1
RVR1 R Potential Difference In Step 1
RVS1 S Potential Difference In Step 1
RVT1 T Potential Difference In Step 1
RVU1 U Potential Difference In Step 1
RVW0 W Potential Difference in Step 0
RVW1 W Potential Difference in Step 1.1
RVW2 W Potential Difference in Step 2
RVW3 W Potential Difference in Step 3
RVW4 W Potential Difference in Step 4
RVX0 X Potential Difference in Step 0
RVX1 X Potential Difference in Step 1.2
RVX2 X Potential Difference in Step 2
RVX3 X Potential Difference in Step 3
RVX4 X Potential Difference in Step 4
RVY0 Y Potential Difference in Step 0
RVY1 Y Potential Difference in Step 1.2
RVY2 Y Potential Difference in Step 2
RVY3 Y Potential Difference in Step 3
RVY4 Y Potential Difference in Step 4
RVZ0 Z Potential Difference in Step 0
RVZ1 Z Potential Difference in Step 1.3
RVZ2 Z Potential Difference in Step 2
RVZ3 Z Potential Difference in Step 3
RVZ4 Z Potential Difference in Step 4
RX Casing Resistance X
RY Casing Resistance Y
RZ Casing Resistance Z
SFV1 Stationary Fluid Voltage 1
SFV2 Stationary Fluid Voltage 2
SFV3 Stationary Fluid Voltage 3
SFV4 Stationary Fluid Voltage 4
SFV5 Stationary Fluid Voltage 5
SP12 SP Ref1 - Ref2
SPA1 SP Ref1 - A
SPWA SP Wellhead-A Electrode
SPWD SP Well Head - Downhole Ref
SPWH SP Wellhead - Housing
SPWS SPAUX Wellhead-surface Reference Electrode
STAN Station Number
STEB Step Buffer
TEMP Computed Borehole Temperature
TIAX Axial Current T
TMPG Temperature Gradient
TNV Normalized Potential Difference T
TRCO Contact Resistance T
UIAX Axial Current U
UNV Normalized Potential Difference U
URCO Contact Resistance U
VA12 Circumferential Potential Difference A1-A2
VA23 Circumferential Potential Difference A2-A3
VA31 Circumferential Potential Difference A3-A1
VB12 Circumferential Potential Difference B1-B2
VB23 Circumferential Potential Difference B2-B3
VB31 Circumferential Potential Difference B3-B1
VC12 Circumferential Potential Difference C1-C2
VC23 Circumferential Potential Difference C2-C3
VC31 Circumferential Potential Difference C3-C1
VCC1 Isolation AMP Offset
VCC2 Isolation AMP, D3-A3 Current
VIAX Axial Current V
VIC2 Isolation AMP, D2-A2 Current
VNV Normalized Potential Difference V
VPC Voltage for Protection Current
VRCO Contact Resistance V
VTEM Raw Voltage of Temperature
VX12 X Potential Difference in Step 1.2
VX13 X Potential Difference in Step 1.3
VX22 X Potential Difference In Step 2-2
VX23 X Potential Difference In Step 2-3
VX42 Complete Offset Of X Channel In Step 4-2
VX43 Complete Offset Of X Channel In Step 4-3
VY11 Y Potential Difference in Step 1.1
VY13 Y Potential Difference in Step 1.3
VY21 Y Potential Difference In Step 2-1
VY23 Y Potential Difference In Step 2-3
VY41 Complete Offset Of Y Channel In Step 4-1
VY43 Complete Offset Of Y Channel In Step 4-3
VZ11 Z Potential Difference in Step 1.1
VZ12 Z Potential Difference in Step 1.2
VZ21 Z Potential Difference In Step 2-1
VZ22 Z Potential Difference In Step 2-2
VZ41 Complete Offset Of Z Channel In Step 4-1
VZ42 Complete Offset Of Z Channel In Step 4-2
WHSR Wellhead-Surface Reference Potential Difference
WIAX Axial Current W
WRCO Contact Resistance W
WSIZ Window Size of Adaptive Smoothing
XIAX Axial Current X
XNCR Normalized Casing Resistance X
XNV Normalized Potential Difference X
XNVO Normalized Potential Difference X
XRCO Contact Resistance X
XYZB XYZ Bad Data Flag
YIAX Axial Current Y
YNCR Normalized Casing Resistance Y
YNV Normalized Potential Difference Y
YNVO Normalized Potential Difference Y
YRCO Contact Resistance Y
ZIAX Axial Current Z
ZNCR Normalized Casing Resistance Z
ZNV Normalized Potential Difference Z
ZNVO Normalized Potential Difference Z
ZRCO Contact Resistance Z

Related parameters
ParameterDescription
ATT Precision DC Amplifier Attenuation Measurement
AWCR Automatic Wire Connection Resistance Estimation
CCCR Critical Current for Casing Resistance
DFNU Discard Frame Number
DIDS Depth Interval for Despiking and Smoothing
DPFR Depth Frame Selection
DPRG Depth Uncertainty Range
DTMO Data Taping Mode
EWCR E Wire Connection Resistance
FWCR F Wire Connection Resistance
GMOD Gain Mode
GWCR G Wire Connection Resistance
ICCS Internal Corrosion Correction Selection
IESP Inner Electrodes Spacing
IX Current for Contact Resistance X
IY Current for Contact Resistance Y
IZ Current for Contact Resistance Z
JWCR J Wire Connection Resistance
KWCR K Wire Connection Resistance
LCD6 Limit of 6 ft Radial Current Density
LCDR Limit of Radial Current Density
LLCR Lower Limit of Casing Resistance
LLIA Lower Limit of Axial Current
LPLC Lowest Percent Limit for Connection Resistance
LRIC Load Resistance for Impressed Current
LVA2 Limit of 2 ft Data Variance
LVA6 Limit of 6 ft Data Variance
LWCR L Wire Connection Resistance
MGR0 Manual Gain Value of Step 0
MGR1 Manual Gain Value of Step 1
MGR2 Manual Gain Value of Step 2
MGR3 Manual Gain Value of Step 3
MGR4 Manual Gain Value of Step 4
MGR5 Manual Gain Value of Step 5
MGRO Manual Gain Value of Step 0
MODP Processing Mode
MODS Smoothing Mode
MRES Mud Resistivity
MWCR M Wire Connection Resistance
NCPS Number of Cycle per Station
NSMO Number of Samples for Smoothing
NWCR N Wire Connection Resistance
ODCA Outside Diameter of Casing
OFF6 Offset of Averaged 6 ft Potential Difference
OFFA Offset of Averaged 2 ft Potential Difference
OFFE Offset of Potential Difference E
OFFF Offset of Potential Difference F
OFFG Offset of Potential Difference G
OFFJ Offset of Potential Difference J
OFFK Offset of Potential Difference K
OFFL Offset of Potential Difference L
OFFM Offset of Potential Difference M
OFFN Offset of Potential Difference N
OFFO Offset of Potential Difference O
OFFW Offset of Potential Difference W
OFFX Offset of Potential Difference X
OFFY Offset of Potential Difference Y
OFFZ Offset of Potential Difference Z
OWCR O Wire Connection Resistance
OZON Zone Size for Estimation of Offset
PIAX Processing Mode of Axial Current
RAAT Reset Amplifier Attenuation
RUWC Upper R Wire Connection Resistance
SGMA Casing Conductivity
SID Station Interval for Differentiation
SSID Station Step Interval for Differentiation
SUWC Upper S Wire Connection Resistance
TA0 Averaging Time of Step 0
TA1 Averaging Time of Step 1
TA2 Averaging Time of Step 2
TA3 Averaging Time of Step 3
TA4 Averaging Time of Step 4
TCD Constant Depth Time
TCT Temperature Compensation for Casing Thickness
TS1 Settling Time of Step 1
TS2 Settling Time of Step 2
TS3 Settling Time of Step 3
TS4 Settling Time of Step 4
TUWC Upper T Wire Connection Resistance
ULCR Upper Limit of Casing Resistance
ULIA Upper Limit of Axial Current
UUWC Upper U Wire Connection Resistance
VUWC Upper V Wire Connection Resistance
WCCR W Channel Connection Resistance
WUWC Upper W Wire Connection Resistance
XCCR X Channel Connection Resistance
XWCR X Wire Connection Resistance
YCCR Y Channel Connection Resistance
YWCR Y Wire Connection Resistance
ZCCR Z Channel Connection Resistance
ZWCR Z Wire Connection Resistance


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