Composition for fracturing and displacement and method for fracturing and displacement of tight oil reservoir
US10119065B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 4, 2017 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Aug 4, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/86
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to the field of oilfield chemistry, and discloses a composition for fracturing and displacement and a method for fracturing and displacement of a tight oil reservoir. The composition contains a pyrrolic compound represented by formula (1) and a laurate; in the formula (1), M− is halide ion, R1 is C1-C5 linear or branched alkyl, and R2 is C15-C20 linear or branched alkyl. The composition for fracturing and displacement provided in the present invention has functions of fracturing, solid carrying, imbibition, drainage and oil displacement, so as to maximize the recovery efficiency of tight oil, and attain economic and social benefits by implementing multiple functions with a single composition, saving resources, and reducing cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.