Methods of limiting or preventing fluid flow through a portion of a subterranean formation
US7891425B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 2008 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Aug 23, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/518
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of limiting or preventing fluid flow through a portion of a subterranean formation comprises the steps of: (a) forming a treatment fluid comprising: (i) a water-swellable, water-insoluble elastomer in the form of discrete particles, wherein the particles of the water-swellable, water-insoluble elastomer have a characteristic of being capable of sticking together to form an agglomeration when exposed to water; and (ii) a carrier fluid for the water-swellable, water-insoluble elastomer; and (b) injecting the treatment fluid through a well into the subterranean formation to deposit the discrete particles of the water-swellable, water-insoluble elastomer in the subterranean formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.