Method for reducing fluid loss during drilling of a hydrocarbon formation using a water-based drilling fluid composition having a multifunctional mud additive
US9944841B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Mar 4, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K2208/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Embodiments of the invention provide a drilling, drill-in, and completion water-based mud composition containing micro or nanoparticles for use in hydrocarbon drilling. In accordance with at least one embodiment, there is provided a method of drilling a hydrocarbon formation, including contacting the hydrocarbon formation with a water-based drilling mud composition while drilling or completing a well. In accordance with at least one embodiment, the water-based drilling mud composition includes water, the water being present in an amount greater than about 90 wt % of the water-based drilling mud composition to maintain flowability of the water-based drilling mud composition; drilling mud having microparticles, nanoparticles, and combinations thereof; and a multi-functional mud additive in an amount of 0.8 wt % of the water-based drilling mud composition, the multi-functional mud additive comprising psyllium husk powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.