Functionally graded swellable packers
US8696963B2 · kind B2 · utility
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14References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2012 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A swellable packer including a tubular member and a swellable element. The tubular member is disposable on a mandrel configured to be deployed into a wellbore. The swellable element is disposed around the tubular member, and has segments of different cross link densities, with the segments configured to provide a varying cross link density in the swellable element along a thickness of the swellable element, an azimuth of the swellable element, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.