|
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 |
|
|
HLDT | Bulk density | 2.5 and 15 | 46 |
|
|
DLL | Resistivity | 15 | 61 |
|
|
TAP* | Temperature | 1 per s | NA |
|
|
|
Tool acceleration | 4 per s | NA |
|
|
|
Pressure | 1 per s | NA |
| Formation MicroScanner | SGT | Total gamma ray | 15 | NA |
| (FMS)-sonic combination | FMS | Microresistivity | 0.25 | 0.5 |
|
|
GPIT | Tool orientation | 0.25 and 15 | NA |
|
|
DSI | Acoustic velocity | 15 | 61 |
| Ultrasonic Borehole Imager | UBI | Ultrasonic imaging | Variable | 1.5-8 |
|
|
GPIT | Tool orientation | 0.25 and 15 | NA |
|
|
SGT | Total gamma ray | 15 | 46/NA |
| WST (stationary measurement) | WST | Sonic traveltime | Variable | NA |
Notes: All tool and tool string names (except the TAP) 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 T17 for explanations of acronyms used to describe tool strings and tools. * = not included on every run. NA = not applicable.