Method for reducing fluid loss during hydraulic fracturing or sand control treatment
US7699106B2 · kind B2 · utility
3Cited by
34References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2007 |
| Grant date | Apr 20, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A low viscosity fluid for reducing fluid loss in a relatively low permeability formation has a viscosity of less that 10 CP and contains a low molecular weight viscosifying agent The aqueous medium may be fresh water, salt water, brine or slickwater. The invention has particular applicability when an ultra lightweight (ULW) proppant or sand control particulate is employed. The fluid may be used in reservoirs having a relative permeability less than 10 mD.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.