Methods for producing emulsifiers for oil-based drilling fluids
US9868891B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Aug 18, 2014 |
| Grant date | Jan 16, 2018 |
| Priority date | — |
| Expiry date | Oct 10, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K8/36
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for making emulsifiers, emulsified drilling fluids, and methods for using the same are provided. In one or more embodiments, the method for making an emulsifier can include mixing a tall oil and a triamide. The triamide can have the chemical formula:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.