ACRONYMS FOR SCHLUMBERGER TOOLS
ACT Aluminum Clay Tool
APS Accelerator Porosity Sonde
ARI Azimuthal Resistivity Imager
ASI Array Seismic Imager
BHC Borehole Compensated Sonic Tool
CNT Compensated Neutron Tool
CALI Caliper
CA_ Caliper
C_ Caliper
DIT Dual Induction Tool
DLL Dual Laterolog
DSI-2 Dipole Sonic Imager
FMS Formation µscanner
GHMT Geological Magnetic Tool
GLT Geochemical Tool
GPIT General Purpose Inclinometer Tool
GR Natural Gamma Ray
GST Induced Gamma Ray Spectrometry Tool
HLDS Hostile Environment Lithodensity Sonde
HNGS Hostile Environment Gamma Ray Sonde
LDT Lithodensity Tool
LSS Long Spacing Sonic Tool
LWD-ADN Logging While Drilling - Azimuthal Density Neutron Tool
LWD-CDN Logging While Drilling - Compensated Density Neutron Tool
LWD-CDR Logging While Drilling - Compensated Dual Resistivity Tool
LWD-RAB Logging While Drilling - Resistivity-at-the-Bit Tool
MCD Mechanical Caliper Tool
M_ Miscellaneous
NGT Natural Gamma Ray Spectrometry Tool
N_ Natural Gamma Ray Spectrometry Tool
SDT Digital Sonic Tool
S_ Digital Sonic Tool
SP Spontaneous Potential
UBI Ultrasonic Borehole Imager
WST Well Seismic Tool
WST-3 component Well Seismic Tool-3 Component

 

ACRONYMS FOR THIRD PARTY TOOLS
BHTV Borehole Televiewer
MCS Multichannel Sonic Tool
SST Shear Sonic Tool
TAP High Resolution Temperature/Acceleration/Pressure Tool
TLT Temperature Logging Tool
 

ACRONYMS AND UNITS USED FOR SCHLUMBERGER LOGS
AFEC APS Far Detector Count Rate (cps)
APLC APS Near/Array Limestone Porosity Corrected (decimal fraction)
C1 Caliper 1 (in, from FMS)
C2 Caliper 2 (in, from FMS)
CALI Caliper (in, from HLDT)
CFEC Corrected Far Epithermal Counts (cps)
CFTC Corrected Far Thermal Counts (cps)
CGR Computed (Th+K) Gamma Ray (API units)
CNEC Corrected Near Epithermal Counts (cps)
CNTC Corrected Near Thermal Counts (cps)
DEVI Hole Deviation (degrees)
DIFF Difference Between MEAN and MEDIAN in Transit Time Proc. (µsec/ft)
DRH HLDS Bulk Density Correction (g/cm3)
DRHO Bulk Density Correction (g/cm3)
DT Short Spacing Transit Time (10'-8' spacing; µsec/ft)
DTCO Compressional Wave Transit Time (µsec/ft)
DTL Long Spacing Transit Time (12'-10' spacing; µsec/ft)
DTLF Long Spacing Transit Time (12'-10' spacing; µsec/ft)
DTLN Short Spacing Transit Time (10'-8' spacing; µsec/ft
DTSM Shear Wave Transit Time (µsec/ft)
DTST Stoneley Wave Transit Time (µsec/ft)
ENPH Epithermal Neutron Porosity (%)
ENRA Epithermal Neutron Ratio
FINC Magnetic Field Inclination (degrees)
FNOR Magnetic Field Total Moment (oersted)
FX Magnetic Field on X Axis (oersted)
FY Magnetic Field on Y Axis (oersted)
FZ Magnetic Field on Z Axis (oersted)
GR Natural Gamma Ray (API units)
HALC High Res. Near/Array Limestone Porosity Corrected (decimal fraction)
HAZI Hole Azimuth (degrees)
HBDZ High Res. Bulk Density Correction (g/cm3)
HBHK HNGS Borehole Potassium (dec. fraction)
HCFT High Resolution Corrected Far Thermal Counts
HCGR HNGS Computed Gamma Ray (GAPI)
HCNT High Resolution Corrected Near Thermal Counts
HD Hole Diameter (in)
HDEB High Res. Enhanced Bulk Density (g/cm3)
HDRH High Resolution Density Correction (g/cm3)
HFEC High Res. Far Detector Count Rate (cps)
HFK HNGS Formation Potassium (dec. fraction)
HFLC High Res. Near/FarLimestone Porosity Corrected (decimal fraction)
HLCA High Res. Caliper (in)
HLEF High Res. Long-spaced Photoelectric Effect (barns/e-)
HNEC High Res. Near Detector Count Rate (cps)
HNPO High Resolution Enhanced Thermal Nutron Porosity (%)
HNRH High Resolution Bulk Density (g/cm3)
HPEF High Resolution Photoelectric Effect (barns/e-)
HRHO High Resolution Bulk Density (g/cm3)
HROM High Res. Corrected Bulk Density (g/cm3)
HSGR HNGS Standard (total) Gamma Ray (GAPI)
HSIG High Res. Formation Capture Cross Section (cu)
HSTO High Res. Computed Standoff
HTHO HNGS Thorium (ppm)
HTNP High Resolution Thermal Neutron Porosity (%)
HURA HNGS Uranium (ppm)
IDPH Phasor Deep Induction (ohm-m)
IIR Iron Indicator Ratio [CFE/(CCA+CSI)]
ILD Deep Resistivity (ohm-m)
ILM Medium Resistivity (ohm-m)
IMPH Phasor Medium Induction (ohm-m)
LCAL HLDS Caliper (in)
LDOC HLDS Density quality Indicator
LIR Lithology Indicator Ratio [CSI/(CCA+CSI)]
LLD Laterolog Deep (ohm-m)
LLS Laterolog Shallow (ohm-m)
LTT1 Transit Time (10'; µsec)
LTT2 Transit Time (8'; µsec)
LTT3 Transit Time (12'; µsec)
LTT4 Transit Time (10'; µsec)
MAGB Earth's Magnetic Field (nTes)
MAGC Earth Conductivity (ppm)
MAGS Magnetic Susceptibility (ppm)
MEDIAN Median Transit Time Recomputed (µsec/ft)
MEAN Mean Transit Time Recomputed (µsec/ft)
NMST Magnetometer Temperature (°C)
NMSV Magnetometer Signal Level (V)
NPHI Neutron Porosity (%)
NRHB LDS Bulk Density (g/cm3)
P1AZ Pad 1 Azimuth (degrees)
PEF Photoelectric Effect (barns/e-)
PEFL LDS Long-spaced Photoelectric Effect (barns/e-)
PIR Porosity Indicator Ratio [CHY/(CCA+CSI)]
POTA Potassium (wet wt. %)
RB Pad 1 Relative Bearing (degrees)
RHL LDS Long-spaced Bulk Density (g/cm3)
RHOB Bulk Density (g/cm3)
RHOM LDS Corrected Bulk Density (g/cm3)
RMGS Low Resolution Susceptibility (ppm)
SFLU Spherically Focused Log (ohm-m)
SGR Spectroscopy Gamma Ray (API units)
SIGF APS Formation Capture Cross Section (cu)
SP Spontaneous Potential (mv)
STOF APS Computed Standoff
SURT Receiver Coil Temperature (°C)
SXRT NMRS differential Temperature (°C)
THOR Thorium (ppm)
TNRA Thermal Neutron Ratio
TT1 Transit Time (10' spacing; µsec)
TT2 Transit Time (8' spacing; µsec)
TT3 Transit Time (12' spacing; µsec)
TT4 Transit Time (10' spacing; µsec)
URAN Uranium (ppm)
VP1 Compressional Wave Velocity (Short Spacing or Mean Transit Time; km/s)
VP2 Compressional Wave Velocity (Long Spacing or Median Transit Time; km/s)
VPCO Compressional Wave Velocity (from DTCO; km/s)
VPSH Shear Wave Velocity (from DTSM; km/s)
VPST Stonely Wave Velocity (from DTSM; km/s)
#POINTS Number of Transmitter-Receiver Pairs Used in the Processing

ADDITIONAL ACRONYMS AND UNITS
(PROCESSED LOGS FROM GEOCHEMICAL TOOL STRING)
AL2O3 Computed Al2O3 (dry weight %)
AL2O3MIN Computed Al2O3 standard deviation (dry weight %)
AL2O3MAX Computed Al2O3 standard deviation (dry weight %)
CAO Computed CaO (dry weight %)
CAOMIN Computed CaO standard deviation (dry weight %)
CAOMAX Computed CaO standard deviation (dry weight %)
CA2O3 Computed CaCO3 (dry weight %)
CA2O3MIN Computed CaCO3 standard deviation (dry weight %)
CA2O3MAX Computed CaCO3 standard deviation (dry weight %)
CCA Calcium Yield (decimal fraction)
CCHL Chlorine Yield (decimal fraction)
CFE Iron Yield (decimal fraction)
CGD Gadolinium Yield (decimal fraction)
CHY Hydrogen Yield (decimal fraction)
CSI Silicon Yield (decimal fraction)
CSIG Capture Cross Section (capture units)
CSUL Sulfur Yield (decimal fraction)
CTB Background Yield (decimal fraction)
CTI Titanium Yield (decimal fraction)
FEO* Computed FeO* (dry weight %)
FEO*MIN Computed FeO* standard deviation (dry weight %)
FEO*MAX Computed FeO* standard deviation (dry weight %)
FE2O3 Computed Fe2O3 (dry weight %)
FE2O3MIN Computed Fe2O3 standard deviation (dry weight %)
FE2O3MAX Computed Fe2O3 standard deviation (dry weight %)
GD Gadolinium (dry weight %)
GDMIN Gadolinium standard deviation (dry weight %)
GDMAX Gadolinium standard deviation (dry weight %)
K2O Computed Fe2O3 (dry weight %)
K2O Computed Fe2O3 standard deviation (dry weight %)
SIO2 Computed SiO2 (dry weight %)
SIO2MIN Computed SiO2 standard deviation (dry weight %)
SIO2MAX Computed SiO2 standard deviation (dry weight %)
THORMIN Thorium standard deviation (ppm)
THORMAX Thorium standard deviation (ppm)
TIO2 Computed TiO2 (dry weight %)
TIO2MIN Computed TiO2 standard deviation (dry weight %)
TIO2MAX Computed TiO2 standard deviation (dry weight %)
URANMIN Uranium standard deviation (ppm)
URANMAX Uranium standard deviation (ppm)
VARCA Variable CaCO3/CaO calcium carbonate/oxide factor