Determining casing fluid capture cross section using gamma count rate ratio
US9840912B2 · kind B2 · utility
0Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Oct 28, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Oct 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V13/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method, in some embodiments, comprises lowering a neutron wireline tool into a cased borehole containing casing fluid, determining a ratio of inelastic count rate to capture count rate using gammas passing through the casing fluid, and calculating a capture cross section of the casing fluid using the ratio.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.