Methods for preparing liquid-solid phase change proppant with a controllable particle size based on emulsified resin
US11708527B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 2022 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Aug 29, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Some embodiments of the present disclosure provide a method for preparing a self-phase change proppant based on an emulsified and toughened bio-based epoxy resin. Toughening modification is performed on the bio-based epoxy resin by graphite particles, and then the bio-based epoxy resin after the toughening modification is emulsified by SiO2 particles as an emulsifier to prepare the self-phase change proppant; a proportion of different mesh numbers in the self-phase change proppant is adjusted by changing a concentration of the emulsifier during emulsification; and the chemical formula of the bio-based epoxy resin is: The proppant particles in the present disclosure have good sphericity and high fracture permeability after being laid, which can effectively extract the remaining oil in the fractures, thus improving the development efficiency of the oilfield.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.