Gel capsules for solids entrainment
US7886826B2 · kind B2 · utility
7Cited by
20References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2010 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Apr 23, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/536
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for treating a subterranean wellbore. More specifically, a method for removing wellbore solids. A first, polymer containing fluid is placed in the solids bed. A second, viscosifying fluid is then placed into the solids bed thereby agitating the solids in the bed and causing the formation of a gel capsules when mixed with the biopolymer fluid. These gel capsules are capable of trapping or entraining the agitated solids. The gel capsules typically have a relatively high volume and a relatively low density, thereby making their removal from the wellbore easier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.