Tool

Output 
Explanation 
Unit 
APS 

Accelerator Porosity Sonde 

APLC

Near array porosity (limestone calibrated) 
% 
SIGF 
Formation capture crosssection (Σf) 
Capture units 
STOF 
Tool standoff (computed distance from borehole wall) 
Inch 
DITE 

Dual Induction Tool model E 

IDPH 
Deep induction resistivity 
Ωm 
IMPH 
Medium induction resistivity 
Ωm 
SFLU 
Spherically focused resistivity 
Ωm 
DSI 

Dipole Sonic Imager 

DTCO 
Compressional wave delay time (Δt) 
µs/ft 
DTSM 
Shear wave delay time (Δt) 
µs/ft 
DTST 
Stoneley wave delay time (Δt) 
µs/ft 
FMS 

Formation MicroScanner 

C1, C2 
Orthogonal hole diameters 
Inch 
P1AZ 
Pad 1 azimuth 
° 

Spatially oriented resistivity images of borehole wall 

GPIT 

General Purpose Inclinometry Tool 

DEVI 
Hole deviation 
° 
HAZI 
Hole azimuth 
° 
F_{x}, F_{y}, F_{z} 
Earth's magnetic field (three orthogonal components) 
Oe 
A_{x}, A_{y}, A_{z} 
Acceleration (three orthogonal components) 
m/s^{2} 
HLDS 

Hostile Environment LithoDensity Sonde 

RHOM 
Bulk density 
g/cm^{3} 
PEFL 
Photoelectric effect 
b/e^{–} 
LCAL 
Caliper (measure of borehole diameter) 
Inch 
DRH 
Bulk density correction 
g/cm^{3} 
HNGS 

Hostile Environment Natural 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 
UBI 

Ultrasonic Borehole Imager 

TTAV 
Transit time average 
µs 
AWAV 
Amplitude average 
db 
BRAC 
Radii average 
Inch 

Spatially oriented acoustic images of borehole wall 
