Blast joint swivel for wellhead isolation tool and method of using same
US7278490B2 · kind B2 · utility
16Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2004 |
| Grant date | Oct 9, 2007 |
| Priority date | — |
| Expiry date | Sep 18, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/068
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A blast joint swivel for use in a wellhead isolation tool includes a blast joint hanger mounted to a top of the wellhead isolation tool and a swivel body rotatably received in the blast joint hanger. The swivel body threadedly connects to a blast joint, which in turn threadedly connects to a top end of a tubing string suspended in a well. The blast joint swivel can also be displaced vertically over a limited range between upper and lower abutments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.