Threaded end of a tubular component for drilling or working hydrocarbon wells, and resulting connection
US10428593B2 · kind B2 · utility
1Cited by
6References
19Claims
0Family size
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Key dates
| Filing date | May 24, 2011 |
| Grant date | Oct 1, 2019 |
| Priority date | — |
| Expiry date | Apr 9, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/139
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded end (1; 2) of a tubular component for drilling or working hydrocarbon wells, said end comprising a threaded zone (3; 4) produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, at least a portion of the end (1; 2) being coated with a dry film comprising an organic matrix in which ion exchange pigments are dispersed in proportions in the range 3% to 30% by weight; and a connection resulting from connecting two corresponding ends by makeup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.