Tubing pressure insensitive actuator system and method
US8176975B2 · kind B2 · utility
8Cited by
19References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 7, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | May 28, 2029 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A tubing pressure insensitive actuator system includes a housing having a bore therein. A force transmitter is sealingly moveable within the bore, the force transmitter defining with the bore two fluid chambers. One of the fluid chambers is at each longitudinal end of the force transmitter. At least two seals are sealingly positioned between the housing and the force transmitter, with one of the seals isolating one end of the force transmitter from tubing pressure and another of the seals isolating another end of the force transmitter from tubing pressure. A method is also included.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.