Relative permeability modification
US8413719B2 · kind B2 · utility
6Cited by
2References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 23, 2010 |
| Grant date | Apr 9, 2013 |
| Priority date | — |
| Expiry date | Jan 16, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/882
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fluid containing a viscous hyposaline aqueous solution of first and second cationic polymers that include quatemized ammonium groups, wherein the first cationic polymer includes a hydrophilic base polymer structure and the second cationic polymer includes a lipophilic base polymer Also disclosed is a method of introducing the viscous fluid into an initial first interval of a subterranean formation, and diverting with the viscous fluid a treating fluid from the initial first interval to an initial second interval.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.