Table T7. Measurement acronyms and units of wireline logging tools deployed during Expedition 323. (See table note.)
| Tool | Output | Description | Unit |
|---|---|---|---|
| APS | Accelerator Porosity Sonde | ||
|
APLC |
Near array porosity | % | |
|
STOF |
Tool standoff | inch | |
|
SIGF |
Formation capture cross-section | Capture units | |
| DIT | Dual Induction Tool | ||
|
IDPH |
Deep induction phasor-processed resistivity | Ωm | |
|
IMPH |
Medium induction phasor-processed 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 | |
| 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 | ° | |
|
Fx, Fy, Fz |
Earth's magnetic field (three orthogonal components) | oersted | |
|
Ax, Ay, Az |
Acceleration (three orthogonal components) | m/s2 | |
| HLDS | Hostile Environment Litho-Density Sonde | ||
|
RHOM |
Bulk density | g/cm3 | |
|
PEFL |
Photoelectric effect | barn/e– | |
|
LCAL |
Caliper (measure of borehole diameter) | inch | |
|
DRH |
Bulk density correction | g/cm3 | |
| HNGS | Hostile 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 | |
Note: For the complete list of acronyms used in IODP and for additional information about tool physics and use, consult IODP-USIO Science Services, LDEO, at iodp.ldeo.columbia.edu/TOOLS_LABS/tools.html.
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