Sodium alkyl PG-dimonium chloride phosphates as lubricating agents in aqueous based drilling fluids
US12173224B2 · kind B2 · utility
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Key dates
| Filing date | Aug 5, 2020 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Dec 6, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2030/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An aqueous based drilling fluid that exhibits improved lubricity, containing a phospholipid lubricant component and methods of improving the lubricity of an aqueous based drilling fluids. The methods include improving the lubricity of an aqueous based drilling fluid composed of an aqueous base fluid, and a weighting agent, with the addition of an effective amount of a phospholipid to substantially reduce the coefficient of friction when compared to the fluid absent the phospholipids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.