Enhancing swelling rate for subterranean packers and screens
US8893792B2 · kind B2 · utility
0Cited by
27References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Dec 25, 2032 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B36/008
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The swelling rate of a swelling packer element or a conforming foam screen material is accelerated with heat. In one variation reactants that create an exothermic reaction plus a catalyst, if needed, are allowed to come into contact upon placement at the desired location. The heat accelerates the swelling process and cuts the time to when the next operation can commence downhole.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.