Subsea wellhead tieback connector
US5299642A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1992 |
| Grant date | Apr 5, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/038
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An internal tieback connector for a subsea wellhead housing has a body which lands on the wellhead housing. A funnel extends over the wellhead housing. An internal connector element carried by the body will engage a profile in the wellhead housing. A connector actuator when moved axially downward will actuate the connector element. A tube extends downward from the connector actuator and engages the bore of a casing hanger. A locking device employs slips to allow downward movement of the actuator but prevent upward movement. The locking device can be released. A running tool is hydraulically actuated for moving the actuator downward and releasing the actuator to disconnect the tieback connector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.