Table T5. Wireline tool strings used and properties measured, Leg 190.
|
Tool string*
|
Typical
logging
speed (m/hr)
|
Tool*
|
Properties
measured
|
Sample
interval
(cm)
|
Approximate
vertical
resolution
(cm) |
Approximate
depth of
investigation
(cm) |
|---|---|---|---|---|---|---|
| Triple combination (total length = ~32 m) | 250-275 | HNGS | Natural gamma ray | 15 | 45 | Variable |
| APS | Porosity | 5 and 15 | 30 | 15 | ||
| HLDS | Bulk density, PEF | 15 | 38 | 15 | ||
| DIT-SFL | Resistivity | 15 | 150/90/60 | 150/76/38 | ||
| TAP | Temperature | 1 per s | NA | NA | ||
| Tool acceleration | 4 per s | |||||
| Pressure | 1 per s | |||||
| FMS-sonic (total length = ~30 m) | 25-275 | NGS | Natural gamma ray | 15 | 45 | 45 |
| GPIT | Tool orientation | 1 or 15 | NA | NA | ||
| DSI | Sonic velocity | 15 | 110 | 15-30 | ||
| FMS | Resistivity image | 0.25 | 0.5 | 15 |
Notes: * = see Table T6 for explanations of acronyms used to describe tool strings and individual tool names. PEF = photoelectric factor.