Table T8. Measurements made by wireline tool strings.
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.