Table T8. Acronyms and units used for wireline logging tools.
Tool
Output
Tool name/Explanation of output
Unit
APS
Accelerator Porosity Sonde

APLC Near array porosity (limestone calibrated) %

SIGF Formation capture cross section (f) Capture units

STOF Tool standoff (computed distance from borehole wall) in
DIT
Dual Induction Tool

IDPH Deep induction resistivity m

IMPH Medium induction resistivity m

SFLU Spherically focused resistivity m
DSI
Dipole Sonic Imager

DTCO Compressional wave delay time (T) ms/ft

DTSM Shear wave delay time (T) ms/ft

DTST Stoneley wave delay time (T) ms/ft
FMS
Formation MicroScanner

C1, C2 Orthogonal hole diameters in

P1AZ Pad 1 azimuth Degrees


Spatially oriented resistivity images of borehole wall
GPIT
General Purpose Inclinometer Tool

DEVI Hole deviation Degrees

HAZI Hole azimuth Degrees

Fx, Fy, Fz Earth's magnetic field (three orthogonal components) Degrees

Ax, Ay, Az Acceleration (three orthogonal components) m/s2
HLDT
Hostile Environment Litho-Density Tool

RHOB Bulk density (corrected) g/cm3

PEF Photoelectric effect b/e-

CALI Caliper (measure of borehole diameter) in

DRHO Bulk density correction g/cm3
HNGS
Hostile Environment Gamma Ray Sonde

HSGR Standard (total) gamma ray gAPI

HCGR Computed gamma ray (HSGR minus uranium contribution) gAPI

HFK Potassium wt%

HTHO Thorium ppm

HURA Uranium ppm
QSST
Inline Checkshot Tool
SGT
Scintillation Gamma Ray Tool

ECGR Environmentally corrected gamma ray gAPI
TAP
Temperature/Acceleration/Pressure °C, m/s2, psi
VSI
Vertical Seismic Imager


Acoustic arrival times ms
WST
Well Seismic Tool


Acoustic arrival times ms