Cement compatible water-based drilling mud compositions
US10077212B2 · kind B2 · utility
6Cited by
7References
17Claims
0Family size
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Key dates
| Filing date | Oct 8, 2013 |
| Grant date | Sep 18, 2018 |
| Priority date | — |
| Expiry date | Nov 20, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A water-based drilling mud for use in cementing operations includes water, LASSENITE® pozzolan-based additive, a heavy-weight additive, a viscosifier, a dispersant and at least one of a set activator, a fluid loss control additive and a shale stabilizer. A method of using the same includes allowing a cement composition to mix with the water-based drilling mud and allowing the mixture of the cement composition and the water-based drilling mud to set.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.