Externally testable redundant connections for subsea wells
US7219736B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 22, 2004 |
| Grant date | May 22, 2007 |
| Priority date | — |
| Expiry date | Nov 17, 2025 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B19/165
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An externally testable redundant connection for a subsea well includes a tube, a connector assembly, and collar. The connector assembly includes a jam nut over the tube; a ferrule over the tube adjacent the jam nut; and a double jam nut disposed over the tube adjacent to the ferrule. The double jam nut includes a test port adapted to receive a test fluid through the test port for determining if the primary seal and the secondary seal are providing a leak proof sealing engagement. The collar engage the tube and transfers an axial force from the double jam nut and compresses the tube into a female profile forming a primary seal. A secondary seal is formed from a compression of the ferrule into the double jam nut using the jam nut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.