Intelligent pressure actuated release tool
US8499826B2 · kind B2 · utility
8Cited by
20References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2010 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Nov 24, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B47/18
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pressure pulse signal is processed and a valve is operated to allow tubing or annulus pressure to move a piston against an atmospheric or low pressure chamber. Movement of the piston triggers the release of the dogs that previously held two components together for a separation. Redundant release mechanisms that respond to discrete pressure pulse signals are provided for backup purposes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.