Measurement of formation gas pressure in cased wellbores using pulsed neutron instrumentation
US7361887B2 · kind B2 · utility
13Cited by
9References
26Claims
0Family size
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Key dates
| Filing date | Jul 26, 2005 |
| Grant date | Apr 22, 2008 |
| Priority date | — |
| Expiry date | Nov 26, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pulsed neutron tool with three or more detectors is used for making measurements inside casing. The measurements may be used to determine gas saturation at a constant gas pressure, pressure at constant gas saturation, or to determine both gas saturation and gas pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.