Thermally energized packer cup
US4424865A · kind A · utility
99Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 8, 1981 |
| Grant date | Jan 10, 1984 |
| Priority date | — |
| Expiry date | Sep 8, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/931
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a geothermal production well, oil well or gas well, a thermally energized packer cup having a tapered elastomer body and a reinforcing element fabricated from a shape memory alloy seals the well casing when the packer cup is heated to the transformation temperature of the shape memory alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.