Rotating wellhead hanger assemblies
US9909385B2 · kind B2 · utility
4Cited by
7References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2014 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | May 30, 2036 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/0415
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Rotating wellhead hanger assemblies are provided. In one embodiment, a wellhead hanger assembly includes a casing hanger and a casing hanger running tool coupled to the casing hanger. An exterior surface of the casing hanger includes a recess and the casing hanger running tool includes a dog that extends inward from the casing hanger running tool into the recess of the exterior surface of the casing hanger. Engagement of the dog with the recess of the casing hanger facilitates synchronous rotation of the casing hanger and its running tool. Additional systems, devices, and methods are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.