Table T11. Tool strings, special tools, and log acronyms, Leg 193.

Table T11. Tool strings, special tools, and log acronyms, Leg 193.

Tool string

Tool

Output

Physical significance

Units

Triple-combination HNGS*
Hostile environment natural gamma-ray sonde

HSGR Standard (total) gamma ray gAPI

HCGR Computed gamma ray (HSGR—uranium contribution) gAPI

HFK Potassium wt%

HTHO Thorium ppm

HURA Uranium ppm

APS*
Accelerator porosity sonde

APLC Near array porosity %

FPLC Far array porosity %

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

STOF Tool standoff (computed distance from borehole wall) in

HLDS*
Hostile environment lithodensity sonde

RHOM Bulk density g/cm³

PEFL Photoelectric effect barn/e^-

LCAL Caliper—measure of borehole diameter in

DRH Bulk density correction g/cm³

DIT
Phasor dual induction

SFR*
Spherically focused resistivity tool

IDPH Deep induction phasor-processed resistivity m

IMPH Medium induction phasor-processed resistivity, medium m

SFLU Shallow spherically focused resistivity m

FMS*-sonic NGT*
Natural gamma-ray tool

SGR Standard (total) gamma ray gAPI

CGR Computed gamma ray (SGR - uranium contribution) gAPI

POTA Potassium Wet wt%

THOR Thorium ppm

URAN Uranium ppm

DSI*
Dipole shear sonic imager

DTCO Compressional wave transit time µs/ft

DTSM Shear wave transit time µs/ft

DTST Stoneley wave transit time µs/ft

GPIT*
General purpose inclinometer tool

Fx, Fy, Fz Magnetic field (three orthogonal directions) oer

FMS*
Formation microscanner

Oriented images of borehole wall microresistivity m

UHT-MSM UHT-MSM
Ultra high temperature multisensor memory tool

T_ext, T_int Temperature (external borehole and internal tool) °C

Pressure psi

HTT HTT
LDEO high-temperature tool

Temperature °C

LWD RAB*
Resistivity at the bit

BD, BM, BS Oriented images m

R_RING Ring resistivity m

R_BIT Bit resistivity m

Res_BD Resistivity deep m

Res_BM Resistivity medium m

Res_BS Resistivity shallow m

GR_RAB Gamma ray gAPI

Tool string	Tool	Output	Physical significance	Units
Triple-combination	HNGS*		Hostile environment natural gamma-ray sonde
		HSGR	Standard (total) gamma ray	gAPI
		HCGR	Computed gamma ray (HSGR—uranium contribution)	gAPI
		HFK	Potassium	wt%
		HTHO	Thorium	ppm
		HURA	Uranium	ppm
	APS*		Accelerator porosity sonde
		APLC	Near array porosity	%
		FPLC	Far array porosity	%
		SIGF	Neutron capture cross section of the formation (_f)	cu
		STOF	Tool standoff (computed distance from borehole wall)	in
	HLDS*		Hostile environment lithodensity sonde
		RHOM	Bulk density	g/cm³
		PEFL	Photoelectric effect	barn/e^-
		LCAL	Caliper—measure of borehole diameter	in
		DRH	Bulk density correction	g/cm³
	DIT		Phasor dual induction
	SFR*		Spherically focused resistivity tool
		IDPH	Deep induction phasor-processed resistivity	m
		IMPH	Medium induction phasor-processed resistivity, medium	m
		SFLU	Shallow spherically focused resistivity	m
FMS*-sonic	NGT*		Natural gamma-ray tool
		SGR	Standard (total) gamma ray	gAPI
		CGR	Computed gamma ray (SGR - uranium contribution)	gAPI
		POTA	Potassium	Wet wt%
		THOR	Thorium	ppm
		URAN	Uranium	ppm
	DSI*		Dipole shear sonic imager
		DTCO	Compressional wave transit time	µs/ft
		DTSM	Shear wave transit time	µs/ft
		DTST	Stoneley wave transit time	µs/ft
	GPIT*		General purpose inclinometer tool
		Fx, Fy, Fz	Magnetic field (three orthogonal directions)	oer
	FMS*		Formation microscanner
			Oriented images of borehole wall microresistivity	m
UHT-MSM	UHT-MSM		Ultra high temperature multisensor memory tool
		T_ext, T_int	Temperature (external borehole and internal tool)	°C
			Pressure	psi
HTT	HTT		LDEO high-temperature tool
			Temperature	°C
LWD	RAB*		Resistivity at the bit
		BD, BM, BS	Oriented images	m
		R_RING	Ring resistivity	m
		R_BIT	Bit resistivity	m
		Res_BD	Resistivity deep	m
		Res_BM	Resistivity medium	m
		Res_BS	Resistivity shallow	m
		GR_RAB	Gamma ray	gAPI

Note: * = Trademark of Schlumberger.