Method and apparatus for downhole production zone
US6543540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Jan 5, 2021 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B49/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention provides systems and methods for performing production testing in open holes and in cased holes that avoid transporting formation fluid to the surface. The invention essentially comprises a test string for testing a production zone intersecting a wellbore. The string further comprises a fluid communication member allowing flow of fluid therethrough, a sealing device for isolating a production zone intersecting the wellbore to allow fluid flow from the production zone into the fluid communication member, a second sealing device spaced apart from the first sealing device for isolating a second injection zone intersecting the wellbore, a pump for pumping fluid between zones, and flow control devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.