Inorganic fullerene-like particles and inorganic tubular-like particles in fluids and lubricants and applications to subterranean drilling
US10501673B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Feb 18, 2014 |
| Grant date | Dec 10, 2019 |
| Priority date | — |
| Expiry date | May 24, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2040/25
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A drilling fluid including a drilling fluid medium selected from the group consisting of water, air and water, air and foaming agent, a water based mud, an oil based mud, a synthetic based fluid, and a composition thereof. The drilling fluid also includes at least one intercalation compound of a metal chalcogenide having molecular formula MX2, where M is a metallic element such as tungsten (W), and X is a chalcogen element such as sulfur (S), wherein the intercalation compound has a fullerene-like hollow structure or tubular-like structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.