Wellhead assembly with telescoping casing hanger
US8413730B2 · kind B2 · utility
3Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Feb 26, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/03
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A wellhead housing has a telescoping casing hanger with an actuator mechanism to provide for direct transfer of casing and pressure loads to the housing. The transfer of casing and pressure loads occurs even in conditions where the telescoping casing hanger may be set in a high position in the wellhead housing on a load shoulder. The transfer of casing and pressure loads also occurs in conditions where the telescoping casing hanger may be set in an earlier installed casing hanger in the wellhead housing for a larger diameter casing string.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.