Shaped memory polyphenylene sulfide (PPS) for downhole packer applications
US8939222B2 · kind B2 · utility
13Cited by
48References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Apr 11, 2033 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/1208
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A downhole element to isolate or complete a wellbore includes a shape memory material including polyphenylene sulfide. The polyphenylene sulfide is the cure product of being cured at a temperature of about 200° C. to about 400° C., for a total time of less than or equal to 200 hours. The shape memory material is thermally activated between an actuated and unactuated shape, and the polyphenylene sulfide in the shape memory material is a closed cell foam, open cell foam, or solid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.