Table T1. Downhole measurements made by the wireline tool strings during IODP Expedition 340T.
| Tool string | Tool | Measurement | Sampling interval (cm) |
Vertical resolution (cm) |
|---|---|---|---|---|
| Triple combo | LEH-MT | Temperature | 15 | NA |
| EDTC | Total gamma ray | 5 and 15 | 30 | |
| HLDS | Bulk density | 2.5 and 15 | 38 | |
| HRLA | Resistivity | 15 | 30 | |
| MTT | Temperature | 15 | NA | |
| Sonic | LEH-MT | Temperature | 15 | NA |
| EDTC | Total gamma ray | 5 and 15 | 30 | |
| DSI | Acoustic velocity | 15 | 107 | |
| GPIT | Tool orientation and acceleration | 4 | 15 | |
| Magnetic susceptibility | LEH-MT | Temperature | 15 | NA |
| EDTC | Total gamma ray | 5 and 15 | 30 | |
| MSS | Magnetic susceptibility | 2.54 | 40 | |
| Versatile Seismic Imager | LEH-MT | Temperature | 15 | NA |
| VSI | One-way acoustic traveltime | Stations at 10–20 m | NA | |
| EDTC | Total gamma ray | 5 and 15 | 30 |
All tool and tool string names except the MTT and MSS are trademarks of Schlumberger. Sampling interval based on optimal logging speed. Acoustic imaging approximate vertical resolution is at 500 kHz. NA = not applicable. For definitions of tool acronyms, see Table T3.
Close | Next | Top of page