Sea-floor pressure head assembly
US6772843B2 · kind B2 · utility
5Cited by
7References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2001 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | Dec 4, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/076
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for eliminating the presence of micro-annuluses associated with a subsea hydrocarbon producing wellbore for accurate gathering of data within the subsea hydrocarbon producing wellbore. The method involves using a sea floor pressure head assembly in conjunction with a subsea blow out preventer, where the sea floor pressure head assembly has an elongated tube with a stop ring formed thereon and an ambient pressure side. The blow out preventer is connected to the entrance of the subsea hydrocarbon producing wellbore, and includes an inflatable bladder and is connected to a hollow riser connected thereto.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.