Formation evaluation using a bit-based active radiation source and a gamma ray detector
US8695728B2 · kind B2 · utility
5Cited by
23References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | May 29, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/125
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill bit made according to one embodiment includes a source configured to induce radiation into a formation during drilling of a wellbore and a sensor in the drill bit configured to detect radiation from the formation responsive to the radiation induced by the source. The drill bit may further include a circuit configured to process signals received from the sensor to estimate a property of the formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.