CIDAI standard 3 : Well log curve names

Purpose

  1. To be able to uniquely identify and search for all curves.
  2. To provide a basis for a 'general search facility' using generic curve names.

Specific requirements

The system allows for immediate access to a small number of the commonly used curves. These are identified below by contractor and are grouped into seven generic curve types.

Standard

The basic standard is to use contractor curve names and mnemonics.

The initial list of generic curve types is

Natural Gamma-Ray
Density
Neutron
Sonic
Resistivity
Inclinometry
Caliper
Within these generic curve types the following curves, by contractor, are those that are to be made available on immediate access.

Key to contractors:

ANA = Anadrill
AWS = Atlas Wireline Services
BHI = Baker Hughes Inteq
BPB = BPB Wireline Services
HAL = Halliburton
SLB = Schlumberger Wireline
SS = Sperry Sun

Natural Gamma-Ray

GRSLB/ANA/HALGamma ray
SGRSLB/ANATotal Gamma Ray from NGT
GRAMBHIApparent Gamma Ray from memory gauge
GRAXBHIGamma Ray
SGRCSSSmoothed Gamma Ray Combined
SGRDSSSmoothed Gamma Ray
GRNCBPBGamma Ray from nuclear combination sonde
GRDIBPBGamma Ray from Induction
GRLLBPBGamma Ray from laterolog
CGRSLB/ANAComputer Gamma Ray
URANSLB/ANAUranium cone
POTASLB/ANAPotassium cone
THORSLB/ANAThotium cone
UAWSUranium cone
KAWSPotassium cone
THAWSThorium cone
GRURHALUranium cone
GRKHALPotassium cone
GRTHHALThorium cone

Density

RHOBSLB/ANA/HALBulk Density
PEFSLB/ANAPhoto electric factor
BDCMBHIBulk density corrected - memory
BDCXBHIBulk density corrected - transmitted
ZDENAWSSpectral Density
PEAWSPhotoelectric effect
ROS2ANARotational density
SBDCSSSmoothed Bulk Density Caliper Corrected
SBDFSSSmoothed Bulk Density Fixed Hole Size
DENBPBBulk Density

Neutron

NPHISLBNeutron porosity
NPLMBHINeutron porosity limestone corrected - memory
NPLXBHINeutron porosity limestone corrected - transmitted
CNAWSCompensated neutron
CNCAWSSalinity corrected compensated neutron
TNPHANANeutron porosity
SPLCSSSmoothed Neutron Porosity Lime - Caliper corrected
SPLFSSSmoothed Neutron Porosity Limestone corrected
NPORBPBLimestone Neutron porosity
NPRLBPBLimestone Neutron porosity
APLCSLBAPS limestone corrected neutron porosity

Sonic

DTSLB/ANA?HALSonic slowness delta 'T'
DTLSLBSonic slowness from long spacing detector
DTLNSLBSonic slowness long near from array sonic
DTLFSLBSonic slowness long far from array sonic
DTSSLBDSI compressional slowness
ACAWS24" DT from acoustilog
DT24AWS24" DT from MAC tool
DTCBAWS
DTCMBPBCompensated sonic
DTCIBPBLong spaces sonic equivalent

Resistivity

SPallSpontaneous potential
ILDSLB/HALInduction Deep
ILMSLB/HALInduction Medium
IDPHSLBInduction deep phaser processed
IMPHSLBSpherically focused unaveraged
SFLUSLBSpherically focused unaveraged
MSFLSLB/HALMicro spherically focused log
LLDSLB/HALLaterolog Deep
LLSSLB/HALLaterolog Shallow
AT10SLBAIT 2' resolution 10" investigarious resistivity
AT90SLB90" resistivity from AIT
AT60SLB60" resistivity from AIT
RPCMBHIResistivity from phase corrected - memory
RACMBHIResistivity from amplitude corrected-memory
RPCXBHIResistivity from phase corrected - transmitted
RACXBHIResistivity from amplitude corrected - transmitted
RILDAWS/BPBResistivity Induction Deep
RILMAWS/BPBResistivity Induction Medium
RFOCAWS
RDAWSResistivity Deep Laterolog
RSAWSResistivity Shallow Laterolog
RMLLAWSResistivity from Micro Laterolog
RIPDAWSDeep induction resistivity from phase induction tool
RIPMAWSMedium induction resistivity from phase induction tool
RSFLAWSResistivity from spherically focused log
PSRANAPhase resistivity shallow
ATRANAAttenuation resistivity deep
SEWPSS
SESPSSSmoothed Phase Shift Derived Resistivity shallow
SEMPSSSmoothed CPA Derived Resistivity Medium
SEDPSSSmoothed CPA Derived Resistivity Deep
DLLBPBDeep Laterolog
SLLBPBShallow Laterolog
MLLBPBMicrolaterolog
SFEBPBShallow Focused Resistivity

Inclinometry

DEVISLB/HALHole deviation
HAZISLBHole azimuth
INCBHI/SSInclination posted
DEVAWSDeviation
DIRAWS
AZAWSAzimuth
INCLANAHole Inclinometry
AZIMANA/SLB/HALHole Azimuth
AZMSS
AZIDBPBBorehole Azimuth
TILDBPBBorehole tilt

Caliper

CALISLB/ANA/HALCaliper from density run
CALSSLBCaliper from MSFL run
CALAWSCaliper
CALRAWSCaliper from resistivity
LDIAANALong ADN ultrasonic caliper
SDIAANAShort ADN ultrasonic caliper
LAANALong axis ultrasonic caliper
SAANAShort axis ultrasonic caliper
SBHCSSBorehole condition indicator
CANCBPBDensity caliper
CAPDBPBPhoto Density caliper

Click here to return to Standards menu