Set for producing a threaded connection for drilling and operating hydrocarbon wells, and resulting threaded connection
US8925975B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 3, 2010 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21B17/042
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A threaded connection includes first and second tubular components each with an axis of revolution. The first component including a male threaded end, the second component including a female threaded end, and both the male and female threaded ends finishing in a terminal surface. The threaded zones include, over a portion defined as in a self-locking make-up, threads, which before the self-locking make-up and when viewed in a longitudinal section passing through the axis of revolution of the first and second components, each include: a thread crest, a thread root, a load flank, and a stabbing flank. A width of the thread crests of each component reducing in a direction of the terminal surface of the component under consideration, while a width of the thread roots increases. A lead of the male stabbing flanks and/or load flanks is different from a lead of the female stabbing flanks and/or load flanks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.