发明名称 THREADED CONNECTION FOR DRILLING AND WORKING HYDROCARBON WELLS
摘要 <p>The invention concerns a threaded connection comprising a first and a second tubular component, each being provided with a respective male (1) and female (2) end, the male end (1) comprising at least one threaded zone (3) on its external peripheral surface and ending in a terminal surface (7), the female end (2) comprising at least one threaded zone (4) on its internal peripheral surface and ending in a terminal surface (8), the threaded zones (3; 4) comprising, over at least a portion of their length, threads (32, 42) each comprising, viewed in longitudinal section passing through the axis of the tubular component, a thread crest (36, 46), a thread root (35, 45), a load flank (30; 40) and a stabbing flank (31; 41), characterized in that the profiles of the male and female load flanks (30; 40), viewed in longitudinal section passing through the axis of revolution (10) of the connection, are a continuous curve with a convex or concave form, the profile of the male flanks being complementary to that of the female flanks over at least 70%, preferably 90% of said continuous curve.</p>
申请公布号 CA2822504(A1) 申请公布日期 2012.07.05
申请号 CA20112822504 申请日期 2011.12.12
申请人 VALLOUREC MANNESMANN OIL & GAS FRANCE;NIPPON STEEL & SUMITOMO METAL CORPORATION 发明人 CARROIS, FABIEN;GALLOIS, YANN;CONRAD, FRANCOIS
分类号 F16L15/06;E21B17/042 主分类号 F16L15/06
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