Lubrication composition with an adaptable coefficient of friction, for a threaded element of a threaded tubular connection component
US8735334B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 5, 2009 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jun 24, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L15/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A film-forming lubrication composition for make-up of threaded connections, intended to cover at least one threading (FE, FI) and a make-up abutment (BVM, BVF) of a threaded element (EM, EF) of a component (T2, T1) of a threaded tubular connection (JF) with a solid state film which adheres to the threading (FE, FI) and to said make-up abutment (BVM, BVF), said make-up abutment (BVM, BVF) being intended to bear against another abutment (BVF, BVM) of another component (T1, T2) of said threaded tubular connection (JF) during the terminal make-up phase, and said lubrication composition comprising a matrix. The matrix further comprises at least one rheoresistant material selected so as to endow said composition, as a complement to lubrication, with a shouldering torque which is at least equal to a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.