Table T8. Logging tools and log acronyms, Leg 194.
 
Tool
Output
Explanation
Units
HNGS*
Hostile-environment spectral gamma ray sonde

HSGR Standard (total) gamma ray gAPI

HCGR Computed gamma ray (HSGR - uranium contribution) gAPI

HFK Formation potassium wt%

HTHO Thorium ppm

HURA Uranium ppm
NGT*
Natural gamma ray tool

SGR Standard total gamma ray gAPI

CGR Computed gamma ray (SGR - uranium contribution) gAPI

POTA Potassium wt%

THOR Thorium ppm

URAN Uranium ppm
MGT
Multisensor natural gamma ray tool

SGR Standard total gamma ray gAPI

CGR Computed gamma ray (SGR - uranium contribution) gAPI

POTA Potassium wt%

THOR Thorium ppm

URAN Uranium ppm
APS
Accelerator porosity sonde

APLC Near array porosity (limestone corrected) pu

FPLC Far array porosity (limestone corrected) pu

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

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
DITE
Dual induction tool

ILD Deep resistivity m

ILM Medium resistivity m

SFLU Shallow resistivity m
TAP
High-resolution temperature/acceleration/pressure tool

TAP Temperature/acceleration/pressure °C, mm/s2, psi
LSS
Long-spaced sonic tool

VP Compressional wave velocity µs/ft
FMS*
Formation MicroScanner


Resistivity image
GPIT*
General purpose inclinometer tool

Hazi Hole azimuth Degree

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

Dt Acoustic arrival times µs

Note: * = trademark of Schlumberger.