|
Tool string
|
Tool
|
Measurement
|
Sampling
interval (cm) |
Approximate
vertical resolution (cm) |
|---|---|---|---|---|
| Triple combination | HNGS | Spectral gamma ray | 15 | 51 |
|
|
APS | Porosity | 5 and 15 | 43 |
|
|
HLDS/HLDT | Bulk density | 2.5 and 15 | 38/46 |
|
|
DIT/DLL | Resistivity | 15 | 200/150/76, 61 (DLL) |
|
|
TAP | Temperature | 1 per s | NA |
|
|
|
Tool acceleration | 4 per s | NA |
|
|
|
Pressure | 1 per s | NA |
| Formation MicroScanner(FMS)-sonic combination | FMS | Microresistivity | 0.25 | 0.5 |
| SGT | Total gamma ray | 15 | 46 | |
|
|
GPIT | Tool orientation | 0.25 and 15 | NA |
|
|
DSI/SDT/LSS/BHC | Acoustic velocity | 15 | 107/120/61/61 |
Notes: All tool and tool string names (except the TAP tool) are trademarks of Schlumberger. For additional information about tool physics and use consult ODP Logging Services at www.ldeo.columbia.edu/BRG/ODP. See Table T7 for explanations of acronyms used to describe tool strings and tools. NA = not applicable.