Wellhead tree pressure compensating device
US8695712B2 · kind B2 · utility
0Cited by
34References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2010 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Sep 1, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pressure mitigating device is used to reduce pressure in a void within a wellhead housing. In one embodiment, the pressure mitigating device includes two plates that define a void between them. Increased pressure in the wellhead housing causes the plates to elastically displace towards each other. The plates contact each other, limiting the displacement prior to plastic deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.