High temperature packers
US9518438B2 · kind B2 · utility
2Cited by
2References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2013 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | Oct 7, 2034 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B33/128
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Self-initialized packers for use in high temperature steam injection applications in wellbores are provided. The packers include an actuating mechanism for setting a packing element for sealing within an openhole or cased hole. The actuating mechanism includes an actuator sleeve that includes an actuating element constructed from a shape memory alloy that has a transformation temperature range greater than a geothermal temperature of the wellbore, and is actuated upon heating from steam injection. Systems and methods of using the packers are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.