Suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof
US11912933B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2023 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Oct 27, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/805
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides a suspension modifier directly added into fracturing fluid for real-time proppant modification during fracturing and the application thereof, relating to the field of oil and gas production technologies. The suspension modifier is a controlled release nanoemulsion and comprises surface hydrophobic modifier, surfactant, cosurfactant and water. The suspension modifier is directly added into clear-water or active-water fracturing fluid while the proppant is added into water. After stirring, the suspension modifier is capable of self-assembling and being adsorbed on the proppant surface, so that the proppant surface becomes hydrophobic and aerophilic. The invention no longer requires the proppant to be pretreated, and the bubble-suspended proppant can be obtained directly by adding the suspension modifier to the clear-water or active-water fracturing fluid, and meanwhile adding the proppant to the fracturing fluid. This technology is not only easy to operate, but also low in cost for proppant treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.