Method and apparatus for shale bed detection in deviated and horizontal wellbores
US7254486B2 · kind B2 · utility
13Cited by
9References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 2005 |
| Grant date | Aug 7, 2007 |
| Priority date | — |
| Expiry date | May 23, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/06
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A relative dip angle of a deviated borehole is determined from natural gamma ray measurements. Dip corrected measurements are processed to determine the thickness of thin beds, and the peak gamma ray response in thin beds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.