发明名称 THREADED TUBULAR COMPONENT AND RESULTING CONNECTION
摘要 The invention concerns a threaded tubular component intended for drilling and/or working a hydrocarbon well, said tubular component having, at one of its ends (1; 2), a threaded zone (3; 4) formed on its external or internal peripheral surface depending on whether the threaded end is male or female in type, characterized in that the end portion (1; 2) is at least partially coated with a dry film (12), comprising a thermoplastic or thermoset matrix (13) including microcapsules filled with compounds in the liquid form, wherein the compounds are linear polydimethylsiloxanes with a kinematic viscosity in the range 100 to 12500 mm/s at 25°C and with a molecular mass in the range 10000 to 80000 g/mole.
申请公布号 EA026057(B1) 申请公布日期 2017.02.28
申请号 EA20140090603 申请日期 2012.10.04
申请人 VALLOUREC OIL & GAS FRANCE;NIPPON STEEL & SUMITOMO METAL CORPORATION 发明人 GARD Eric;PINEL Eliette;PETIT Mikael
分类号 E21B17/042;C08K7/22;F16B33/06 主分类号 E21B17/042
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