Method for finishing a tubular threaded member with a dry protection coating
US9395028B2 · kind B2 · utility
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16References
17Claims
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Key dates
| Filing date | Jun 26, 2014 |
| Grant date | Jul 19, 2016 |
| Priority date | — |
| Expiry date | Jun 26, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A tubular threaded element including a dry protective coating. The coating includes a solid matrix adhering to the substrate in which there are dispersed particles of at least one solid lubricant belonging to one and the same class. The solid matrix is lubricating and has a rheological behavior of plastic or viscoplastic type. The coating protects the threadings of the threaded elements, used for example in hydrocarbon wells, from corrosion and galling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.