Bit based formation evaluation using a gamma ray sensor
US8210280B2 · kind B2 · utility
15Cited by
40References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2008 |
| Grant date | Jul 3, 2012 |
| Priority date | — |
| Expiry date | Oct 14, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill bit made according to one embodiment includes at least a gamma ray sensor configured to provide signals representative of a presence and/or amount of a naturally occurring gamma ray source when the drill bit is used for cutting into a formation. A circuit may be configured to process signals from the gamma ray sensor to provide an estimate a parameter relating to the naturally occurring gamma ray source, which may used for purposes such as optimizing drilling parameters and geosteering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.