Drilling fluids and methods of making and using thereof
US12344794B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2023 |
| Grant date | Jul 1, 2025 |
| Priority date | — |
| Expiry date | Sep 28, 2043 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/12
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present disclosure relates drilling fluids and methods of producing and using drilling fluids. The drilling fluid include an aqueous base fluid; at least one of a clay-based component and a mud; and a shale inhibitor comprising silica grafted with glutamate-glycol, wherein the drilling fluid does not comprise KCl, has a shale cutting rate from 65% to 99%, and has an anti-swelling capacity from 55% to 99%. The method of using the drilling fluid in drilling operations includes mixing an aqueous base fluid, a shale inhibitor comprising silica grafted with glutamate-glycol, and at least one of a clay material and a mud to produce a drilling fluid; and introducing the drilling fluid to a subsurface formation, wherein the drilling fluid does not comprise KCl, has a shale cutting recovery rate from 65% to 99%, and has an anti-swelling capacity from 55% to 99%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.