Subsea casing hanger suspension system
US4836579A · kind A · utility
88Cited by
9References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Apr 27, 2008 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B2200/406
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A well casing suspension system comprising a casing hanger assembly with an expandable, multiple shoulder, split load ring that is radially expanded into supporting position in a mating groove in a wellhead housing by contact with a previously installed annulus packoff.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.