Method and system of determining a value indicative of gas saturation of a formation
US8346481B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 2008 |
| Grant date | Jan 1, 2013 |
| Priority date | — |
| Expiry date | Sep 27, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Determining a value indicative of gas saturation of a formation. At least some of the illustrative embodiments are methods including obtaining an inelastic count rate and a capture count rate of a gamma detector for a particular borehole depth, calculating a ratio of an inelastic count rate to a capture count rate for the particular borehole depth, determining a value indicative of gas saturation based on the ratio of the inelastic count rate to the capture count rate for the particular borehole depth, repeating the obtaining, calculating and determining for a plurality of borehole depths, and producing a plot of the value indicative of gas saturation of the formation as a function of borehole depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.