Systems and methods for deliquifying a commingled well using natural well pressure
US8316950B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2010 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Apr 23, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B43/14
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A method for removing fluids from a commingled well comprises positioning a fluid removal system in the well. In addition, the method comprises sealing a first formation from a second formation, shutting in the annulus, and closing off an inner flow passage of a tubing string. Further, the method comprises allowing the pressure of the first and second production zones to build up naturally. Still further, the method comprises flowing a fluid from the first production zone through a first of a plurality of check valves into the inner flow passage, and flowing a fluid from the second production zone through a second of the plurality of check valves into the inner flow passage. Moreover, the method comprises re-opening the inner flow passage of the tubing string and lifting the fluid in the inner flow passage to the surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.