Method of preparing and using a drag-reducing additive having a dispersion polymer
US11001748B2 · kind B2 · utility
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54References
11Claims
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Key dates
| Filing date | Nov 30, 2018 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Jul 10, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/28
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method begins with the step of preparing a drag-reducing additive by mixing a dispersion polymer with a surfactant and a solvent. The method continues with the step of forming a drag-reducing composition by combining the drag-reducing additive with an aqueous treatment fluid. The method further involves the step of injecting the drag-reducing composition into a subterranean formation, a pipeline or a gathering line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.