Oil-phase-free triple-play slick water concentration system with effects of synergistically reducing drag, assisting drainage and promoting clay stabilization
US10081753B2 · kind B2 · utility
3Cited by
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Key dates
| Filing date | Oct 24, 2017 |
| Grant date | Sep 25, 2018 |
| Priority date | — |
| Expiry date | Oct 24, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An oil-phase-free triple-play slick water concentration system, is characterized by first synthesizing a water-soluble dispersion polymer drag reducer A; and then preparing an inorganic salt solution B, under mechanical agitation, of high-performance water-soluble fluorocarbon surfactant and a water-soluble of high-performance small molecule or macromolecule clay stabilizer containing quaternary ammonium ions; and finally, the aqueous inorganic salt solution B is slowly added to the drag reducer dispersion A, wherein the ratio of the aqueous inorganic salt solution B and the dispersion A is 20-80:80-20.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.