Tool string
|
Tool*
|
Measurement
|
Sampling
interval (cm) |
Approximate
vertical resolution |
---|---|---|---|---|
Triple combination | HNGS† | Spectral gamma ray | 15 | 51 |
|
APS | Porosity | 5 and 15 | 43 |
|
HLDT | Bulk density | 2.5 | 38 |
|
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 |
|
MGT‡ | Gamma ray | 15 | 15 |
Formation MicroScanner | NGT | Spectral gamma ray | 15 | 46 |
FMS-sonic combination | GPIT | Tool orientation | 0.25 and 15 | NA |
|
FMS | Microresistivity | 0.25 | 0.5 |
|
DSI/SDT/LSS/BHC | Acoustic velocity | 15 | 107/120/61/61 |
Notes: * = for additional information about tool physics and use consult ODP Logging Services at www.ldeo.columbia.edu/BRG/ODP. † = see Table T9 for explanations of acronyms used to describe tool strings and tools. ‡ = not included in each logging run. NA = not applicable.