Apparatus and methods for interlaced density and neutron measurements
US7642507B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2006 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Jan 23, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/145
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tool for formation logging includes a support configured for movement in a borehole; a source mounted on the support, the source configured to emit neutrons and gamma rays; and at least one sensor mounted on the support and spaced apart from the source, wherein the at least one sensor is configured to detect at least one selected from the group consisting of gamma rays and neutrons. A method for formation logging in accordance with one embodiment of the invention includes emitting neutrons and gamma rays into a formation, using a source on a logging tool disposed in a borehole penetrating the formation; and detecting gamma-ray signals and neutron signals scattered by the formation, using at least one detector on the logging tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.