Hybrid fluid lift valve for commingling gas production
US9062521B2 · kind B2 · utility
2Cited by
12References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 10, 2012 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Apr 1, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method and apparatus for commingling sweet gas and sour gas production in a gas well having an upper sweet zone and a lower sour zone. The apparatus comprises a commingling valve which prevents cross flow of sour fluids into the sweet zone or casing annulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.