Table T3. Principal channels of the triple-combination tool.
|
Individual
tools |
Properties
measured |
Sample
interval (cm) |
Approximate
vertical
resolution
(cm)
|
Approximate
depth of investigation
(cm)
|
|---|---|---|---|---|
| HNGS | Natural gamma ray | 15 | 45 | Variable |
| APS | Porosity | 5 and 15 | 30 | 15 |
| HLDT | Bulk density, PEF | 15 | 38 | 15 |
| DIT-SFL | Resistivity | 15 | 150/90/60 | 150/76/38 |
| TAP | Temperature | 1/s | NA | NA |
| Tool acceleration | 4/s | NA | NA | |
| Pressure | 1/s | NA | NA |
Notes: See Table T2 for explanations of acronyms. NA = not applicable, PEF = photoelectric effect.