Compact surface wellhead system and method
US9382774B2 · kind B2 · utility
0Cited by
2References
19Claims
0Family size
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Key dates
| Filing date | Apr 8, 2010 |
| Grant date | Jul 5, 2016 |
| Priority date | — |
| Expiry date | Jul 18, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/04
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A low-profile wellhead system having a nested hanger configuration, annular communication, elastomeric seals, and seal verification is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.