Table T14. Logging tool and measurement acronyms and units of measurement.
 
Tool Output Explanation Units
HNGS
Hostile environment natural gamma-ray sonde

HSGR Standard (total) gamma ray gAPI

HCGR Computed gamma ray (HSGR minus uranium contribution) gAPI

HFK Formation potassium %

HTHO Thorium ppm

HURA Uranium ppm
NGT
Natural gamma-ray tool

SGR Standard total gamma ray gAPI

CGR Computed gamma ray (SGR minus uranium contribution) gAPI

POTA Potassium %

THOR Thorium ppm

URAN Uranium ppm
APS
Accelerator porosity sonde

APLC Near array porosity (limestone corrected) %

FPLC Far array porosity (limestone corrected) %

SIGF Neutron capture cross section of the formation (Sf) cu (capture units)

STOF Tool standoff (computed distance from borehole wall) in
HLDS
High temperature lithodensity sonde

RHOM Bulk density (corrected) g/cm3

PEFL Photoelectric effect factor barn/e-

LCAL Caliper measure of borehole diameter in

DRH Bulk density correction g/cm3
DLL
Dual laterolog

LLD Deep laterolog m

LLS Shallow laterolog m
DITE-SFR
Dual induction tool-spherically focused resistivity tool

IDPH Phasor deep induction m

IMPH Phasor medium induction m

SFLU Shallow spherically focused log m
TAP
High resolution temperature/acceleration/pressure tool

T, A, P Temperature/acceleration/pressure C, mm/s2, psi
DSI
Dipole shear sonic imager

Vp Compressional wave velocity m/s

Vs Shear wave velocity m/s
LSS
Long-spaced sonic tool

Vp Compressional wave velocity m/s
FMS
Formation MicroScanner


Resistivity image
GPIT
General purpose inclinometer tool

Hazi Hole azimuth

FNOR Intensity of the total magnetic field oer (oersted)
WST
Well seismic tool

t Acoustic arrival time s