Table T14. Acronyms and units used for wireline logging tools.
| Tool | Output | Tool name/Explanation of output | Unit |
|---|---|---|---|
| APS | Accelerator Porosity Sonde | ||
| APLC | Near array porosity (limestone calibrated) | % | |
| SIGF | Formation capture cross section (Σf) | Capture units | |
| STOF | Tool standoff (computed distance from borehole wall) | in | |
| DLL | Dual Laterolog | ||
| LLD | Deep resistivity | Ωm | |
| LLS | Shallow resistivity | Ωm | |
| DSI | Dipole Sonic Imager | ||
| DTCO | Compressional wave delay time (Δt) | ms/ft | |
| DTSM | Shear wave delay time (Δt) | ms/ft | |
| DTST | Stoneley wave delay time (Δt) | ms/ft | |
| FMS | Formation MicroScanner | ||
| C1, C2 | Orthogonal hole diameters | in | |
| P1AZ | Pad 1 azimuth | Degrees | |
| Spatially oriented resistivity images of borehole wall | |||
| GPIT | General Purpose Inclinometer Tool | ||
| DEVI | Hole deviation | Degrees | |
| HAZI | Hole azimuth | Degrees | |
| 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 (corrected) | g/cm3 | |
| PEFL | Photoelectric effect | b/e– | |
| LCAL | Caliper (measure of borehole diameter) | in | |
| DRHO | Bulk density correction | g/cm3 | |
| HNGS | Hostile Environment 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 | |
| SGT | Scintillation Gamma Ray Tool | ||
| ECGR | Environmentally corrected gamma ray | gAPI | |
| TAP | Temperature/Acceleration/Pressure tool | °C, m/s2, psi | |
| UBI | Ultrasonic Borehole Imager | ||
| Spatially oriented acoustic images of borehole wall | |||
| Acoustic arrival times and amplitude | ms | ||
| Borehole diameter | in | ||
| Borehole azimuth | Degrees | ||
| WST-3 | Three-component Well Seismic Tool | ||
| Acoustic arrival time | ms | ||
| GBM | Goettingen Borehole Magnetometer | ||
| Fx, Fy, Fz | Earth’s magnetic field (three orthogonal components) | nT | |
| Nx, Ny | Inclination | Degrees | |
| T1,T2 | Telemetry and gyro temperature | °C | |
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