Concentric tubing hanger
US5503230A · kind A · utility
56Cited by
26References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1994 |
| Grant date | Apr 2, 1996 |
| Priority date | — |
| Expiry date | Nov 17, 2014 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/0407
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A subsea well assembly has guides for orienting electrical connectors located on a concentric tubing hanger and on the tree. The guides use a guide slot and key to rotate the electrical connectors on the lower end of the tree when the tree is installed on the wellhead. The tree electrical connectors are located on the upper guide member and rotate relative to the tree as the guide slot engages the guide key. An annulus valve in the tubing hanger uses a sleeve with inner and outer metal seal lips.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.