发明名称 |
PROCESS FOR COATING A THREADED TUBULAR COMPONENT, THREADED TUBULAR COMPONENT AND RESULTING CONNECTION. |
摘要 |
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, in which at least a portion of the end (1; 2) is coated with at least one film of polyurethane (12), 100% solid state, with an essentially rigid structure, based on a matrix of polyurethane and polyurea, in which the urethane functionality is predominant with respect to the urea functionality in a proportion of at least 55% by weight. |
申请公布号 |
MX2013007646(A) |
申请公布日期 |
2013.09.16 |
申请号 |
MX20130007646 |
申请日期 |
2011.12.12 |
申请人 |
VALLOUREC MANNESMANN OIL & GAS FRANCE |
发明人 |
PINEL, ELIETTE;GARD, ERIC;PETIT, MIKAEL;GOUIDER, MOHAMED |
分类号 |
C10M107/44;C09D175/00;C10N30/06;E21B17/042;F16L15/00 |
主分类号 |
C10M107/44 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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