Compartmentalized MWD tool with isolated pressure compensator
US7673705B2 · kind B2 · utility
21Cited by
11References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2008 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Jun 8, 2028 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/017
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention relates to a measurement-while-drilling (MWD) tool having a pressure compensation system and reservoir segregated from fluid integration with actuator mechanism lubricants. The MWD tool can also be serviced on the rig floor without the need to drain, reseal and charge the compensation system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.