发明名称 THREADED CONNECTION
摘要 <p>A threaded connection used in exploration and operation of hydrocarbon wells includes first and second tubular components, including respective male and female ends and threaded zones. The threaded zones include respective male and female threads, the threads including a root, a crest, a stabbing flank, and a load flank. A groove is provided in the load flank of the threaded zone of the female end and/or the male end respectively, adjacent to the root, and a boss projects axially from the load flank of the threaded zone of the male end and/or respectively from the female end adjacent to the crest, the boss including a convex and concave surfaces. The boss is housed in the groove with, in a connected state, a radial clearance between the concave surface and the groove and an axial clearance between the end of the boss and the bottom of the groove.</p>
申请公布号 EP2507540(A2) 申请公布日期 2012.10.10
申请号 EP20100784456 申请日期 2010.11.26
申请人 VALLOUREC MANNESMANN OIL&GAS FRANCE;SUMITOMO METAL INDUSTRIES, LTD. 发明人 MAILLON, BERTRAND;MARTIN, PIERRE;DURIVAULT, JEROEME
分类号 F16L15/06;E21B17/042 主分类号 F16L15/06
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