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11. 发明公开

EP0329895A2 Hanger and seal assembly 失效
标题翻译： Aufhänge-und Abdicht-Einrichtung。
公开(公告)号：EP0329895A2
公开(公告)日：1989-08-30
申请号：EP88311102.3
申请日：1988-11-24
申请人： Cooper Industries Inc.
发明人： McEver, James P. , Theiss, David H.
IPC分类号： E21B33/043 , F16J15/10
CPC分类号： E21B33/043 , E21B2033/005
摘要： The improved structure of the present invention includes a hanger (10) having a landing seat (16) for engaging the landing seat (18) within a wellhead housing (14), a hanger holddown ring (24), an external sealing surface spaced from the internal sealing surface of the housing to form the annulus to be sealed, a seal assembly (12) including a seal body (100) having external metal seal legs (102, 104) diverging outward but having a free diameter less than the diameter of the housing internal sealing surface and internal metal seal legs (106, 108) converging inwardly and having a free diameter smaller than the diameter of the hanger external sealing surface, a lower body (110) movably connected to the seal body and having an upstanding rim (118) engaging the lower outer seal leg, an upper body (112) movably connected to the seal body, a loading ring (136) surrounding the upper portion of the seal body and engaging the upper outer seal leg, means (153) for securing said seal assembly to said hanger after said seal assembly has been set in loaded sealed position and means for retaining said loading ring against the upper outer seal leg to latch said seal assembly in loaded sealed position. In a modified form the seal body includes an upper outer seal leg extending upwardly and outward and having a free diameter less than the internal sealing diameter of the housing and a lower outer seal leg extending upwardly and having a free diameter larger than the internal sealing diameter of the housing and this form does not have a lower body or upper rim supporting the lower outer seal leg. It does have the means for loading the upper outer seal leg and the latch to retain the seal assembly in sealing position.
摘要翻译：本发明的改进的结构包括一个衣架（10），其具有用于在井口壳体（14）内接合着陆座（18）的着陆座（16），悬挂器压紧环（24），与所述壳体的内部密封表面形成待密封的环空;密封组件（12），包括密封体（100），所述密封体（100）具有向外发散但具有小于直径的自由直径的外部金属密封腿（102,104）所述壳体内部密封表面和内部金属密封腿部（106,108）向内收敛并且具有小于所述衣架外部密封表面的直径的自由直径;下部主体（110），其可移动地连接到所述密封体并且具有直立的边缘（118），与所述下外密封腿接合;可移动地连接到所述密封体的上主体（112），包围所述密封体的上部并接合所述上外密封腿的装载环（136），用于将所述密封组件固定到所述密封组件所述密封组件已经设置在加载的密封位置中，并且用于将所述加载环保持抵靠上部外部密封腿以将所述密封组件锁定在加载的密封位置中的装置。在改进形式中，密封体包括向上和向外延伸的上部外部密封腿，其具有小于壳体的内部密封直径的自由直径和向上延伸的具有大于内部密封直径的自由直径的下部外部密封腿并且该形式不具有支撑下外部密封腿的下部主体或上部边缘。它具有用于装载上部外部密封腿和闩锁以将密封组件保持在密封位置的装置。

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