Casing annulus tester for diagnostics and testing of a wellbore
US8240387B2 · kind B2 · utility
4Cited by
33References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2008 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Apr 24, 2030 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/064
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Embodiments of the present invention generally relate to a casing tester for plugging and abandoning a wellbore. In one embodiment, a method of testing an annulus defined between a first tubular string and a second tubular string includes engaging a first annular packer with an outer surface of the first tubular string and engaging a second annular packer with an outer surface of the second tubular string. The tubular strings extend into a wellbore. The method further includes injecting a test fluid between the packers until a predetermined pressure is exerted on the annulus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.