Bit based formation evaluation and drill bit and drill string analysis using an acoustic sensor
US8215384B2 · kind B2 · utility
27Cited by
33References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2008 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Dec 31, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V1/40
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A drill bit having a bit body includes one or more acoustic sensors that are configured to detect elastic waves when the drill bit is used for drilling a wellbore. The acoustic sensor may be configured to detect a sonic signature associated with a failure event. In further arrangements, the acoustic sensors may be configured to receive signals from a controlled acoustic source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.