Isolation barrier
US9708879B2 · kind B2 · utility
0Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Mar 22, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B34/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus (10) and method, particularly useful for isolating zones in a hydrocarbon open hole well bore (80). The apparatus includes a tubular body (12), arranged to be run into and secured within the well bore. A sleeve member (14) is positioned on the exterior of the body and is sealed thereto creating a chamber (16) therebetween. Pressure is applied through a port (18) in the body to cause the sleeve member to move outwardly and morph to an inner wall of the well bore. Pressure is trapped in the chamber and maintained at a morphed pressure value by pressure balancing means in the form of a biased piston (64).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.