Flow completion system
US6655455B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 5, 2002 |
| Grant date | Dec 2, 2003 |
| Priority date | — |
| Expiry date | Aug 5, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16K31/1225
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flow completion system for controlling the flow of fluid from a well bore, the flow completion system comprising a tubing spool, a tubing hanger supporting a tubing string which extends into the well bore and defines a tubing annulus surrounding the tubing string; a first closure member which is positioned in the production bore above the production passageway; a first annular seal wherein the first closure member and the first seal comprise a first pressure-containing barrier between the well bore and a surrounding environment; a second closure member which is positioned in the production bore above the first closure member; and a second annular seal wherein the second closure member and the second seal comprise a second pressure-containing barrier between the well bore and the environment; and wherein both the first and the second barriers are associated with the tubing hanger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.