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    • 7. 发明申请
    • SELF-RELIEVING BALL VALVE SEAT ASSEMBLY
    • 自行消除球阀座组件
    • WO2018057611A1
    • 2018-03-29
    • PCT/US2017/052496
    • 2017-09-20
    • CAMERON INTERNATIONAL CORPORATION
    • BALAN, Mircea
    • F16K5/06F16K5/20
    • F16K5/0689F16K5/0668F16K5/0678F16K5/201F16K5/205
    • A ball valve includes a housing, a ball disposed within a cavity of the housing and configured to rotate between an open position and a closed position. The ball valve also includes an annular seat assembly positioned between the housing and the ball, and the annular seat assembly has an annular seat body having a ball-contacting surface configured to contact the ball and having an annular groove. The annular seat assembly also has an annular seal positioned within the annular groove, and the annular seal is configured to contact and to form a seal between the annular seat body and the housing and enables the annular seat body to move relative to the housing to automatically relieve a cavity pressure within the cavity across the annular seat assembly into an upstream bore of the housing.
    • 球阀包括壳体,布置在壳体的腔内并且构造成在打开位置和关闭位置之间旋转的球。 球阀还包括定位在壳体和球之间的环形座组件,并且环形座组件具有环形座体,环形座体具有构造成接触球并具有环形凹槽的球接触表面。 环形座组件还具有环形密封件,该环形密封件定位在环形凹槽内,并且环形密封件被构造成接触并形成环形座椅主体与壳体之间的密封并且使得环形座椅主体能够相对于壳体移动以自动地 通过环形座组件将空腔内的空腔压力释放到壳体的上游孔中。
    • 10. 发明申请
    • HANGER SEALING SYSTEM
    • 挂钩密封系统
    • WO2017210112A1
    • 2017-12-07
    • PCT/US2017/034693
    • 2017-05-26
    • CAMERON INTERNATIONAL CORPORATION
    • MINNOCK, Kevin PeterDAVIS, Alan
    • E21B33/04E21B33/03
    • E21B33/04E21B33/03E21B34/14
    • A system includes a hanger having a tapered radially-outer surface and a hanger sealing assembly configured to move between an unsealed position and a sealed position in which the hanger sealing assembly seals an annular space between the hanger and a housing of a wellhead. The hanger sealing assembly includes an annular sleeve, a first and second annular seal each comprising a respective tapered radially-inner surface configured to contact the tapered radially-outer surface of the hanger, and an annular seal-engaging sleeve. The annular seal-engaging sleeve is coupled to the first and second annular seals, and movement of the annular sleeve along an axial axis is configured to exert an axial force on the first annular seal, thereby causing the first and second annular seals to move axially and radially outward along the tapered radially-outer surface of the hanger to seal the annular space.
    • 系统包括具有锥形径向外表面的吊架和被配置为在未密封位置和密封位置之间移动的吊架密封组件,吊架密封组件密封吊架和 井口的房屋。 吊架密封组件包括环形套筒,第一和第二环形密封件以及环形密封接合套筒,第一和第二环形密封件各自包括构造成接触吊架的锥形径向外表面的相应锥形径向内表面。 环形密封接合套筒与第一环形密封件和第二环形密封件联接,并且环形套筒沿轴向轴线的运动被配置为在第一环形密封件上施加轴向力,由此使得第一环形密封件和第二环形密封件轴向运动 并且沿着吊架的锥形径向外表面径向向外以密封环形空间。