Methods for improved proppant suspension in high salinity, low viscosity subterranean treatment fluids
US9702239B2 · kind B2 · utility
1Cited by
19References
11Claims
0Family size
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Key dates
| Filing date | Jun 27, 2013 |
| Grant date | Jul 11, 2017 |
| Priority date | — |
| Expiry date | Oct 5, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Introducing a treatment fluid comprising proppant particulates into a subterranean formation, the treatment fluid comprising a high salt concentration base fluid, a charged polymeric gelling agent, and proppant particulates suspended therein, wherein the high salt concentration base fluid comprises a concentration of salt in the range of from about 0.5% to saturation, and wherein the treatment fluid has a bulk viscosity of from about 30 cP to about 150 cP at a shear rate of about 40 sec−1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.