Tubing fill and testing valve
US7267177B2 · kind B2 · utility
1Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 2006 |
| Grant date | Sep 11, 2007 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B2200/05
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides for a valve in a tubing string that allows the tubing string to fill with well fluids as the string is assembled and lowered into a well bore, but can be used to check pressure integrity of the tubing string during various stages of the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.