Title:
管状要素及びそれを用いた管状接続部
Document Type and Number:
Japanese Patent JP5926734
Kind Code:
B2
Abstract:
The invention concerns a threaded tubular component for drilling or working hydrocarbon wells, said tubular component having at one of its ends (1; 2) a threaded zone (3; 4) produced on its outer or inner peripheral surface depending on whether the threaded end is male or female in type, characterized in that at least a portion of the end (1; 2) is coated with a lubricating dry film (12) the matrix (13) of which comprises at least one migrating sliding agent (9) belonging to the oils or waxes family and principally distributed at the surface of the lubricating dry film (12) such that the coefficient of friction of the film (12) is less than 0.07 at loads of less than 40 N while the coefficient of friction of the film (12) is more than 0.1 at loads of more than 200 N.
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Inventors:
Girl, eric
Pinell, Eliet
Petite michael
Giday, mohamed
Pinell, Eliet
Petite michael
Giday, mohamed
Application Number:
JP2013533195A
Publication Date:
May 25, 2016
Filing Date:
October 12, 2011
Export Citation:
Assignee:
Vallec Oil and Gas France
Nippon Steel & Sumitomo Metal Corporation
Nippon Steel & Sumitomo Metal Corporation
International Classes:
F16L15/04; C09D7/61; C10M107/38; C10M107/50; C10M125/02; C10M125/18; C10M125/26; C10M127/02; C10M133/16
Domestic Patent References:
| JP2012522187A | ||||
| JP2010523785A | ||||
| JP2009512819A |
Foreign References:
| WO2010114168A1 | ||||
| WO2009057754A1 |
Attorney, Agent or Firm:
Yamato Tsutsui
Yoshitaka Kozuka
Akiko Tsutsui
Yoshitaka Kozuka
Akiko Tsutsui