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15 条记录 (耗时 0.022 秒)

    Reinforced seal unit for pumpdown pistons or well swabs
    5.
    发明授权
    Reinforced seal unit for pumpdown pistons or well swabs 失效
    用于抽空活塞或井拭子的加强密封单元

    公开(公告)号：US4227573A

    公开(公告)日：1980-10-14

    申请号：US961139

    申请日：1978-11-16

    申请人： Joseph L. Pearce ,  Thomas W. Ray ,  Donald F. Taylor ,  John H. Yonker

    发明人： Joseph L. Pearce ,  Thomas W. Ray ,  Donald F. Taylor ,  John H. Yonker

    IPC分类号： E21B23/10 ,  E21B37/10 ,  F16J15/32 ,  E21B33/12

    CPC分类号： E21B23/10 ,  E21B37/10 ,  F16J15/3284

    摘要： A piston for use as a TFL locomotive or well swab having a seal unit forming a fluid seal between the piston and the inner wall of a flow conductor or tubing string. The seal unit comprising at least one annular fin or lip extending radially from the piston. The annular fin or lip having an exterior portion formed from elastomeric material which is deformable to seal with the flow conductor and an interior portion formed from elastomeric material molded on wire mesh. The interior portion providing increased wear resistance and strength for the annular lip. In one version, the piston carries several individual seal units each having an annular lip.

    摘要翻译： 用作TFL机车或井眼用的活塞，其具有在活塞和流动导体或管柱的内壁之间形成流体密封的密封单元。 密封单元包括从活塞径向延伸的至少一个环形翅片或唇缘。 环形翅片或唇缘具有由弹性体材料形成的外部部分，其可变形以与流动导体密封，以及由在金属丝网上模制的弹性体材料形成的内部部分。 内部部分为环形唇缘提供增加的耐磨性和强度。 在一个版本中，活塞承载多个具有环形唇缘的单个密封单元。

    Seal and seal assembly for well tools
    10.
    发明授权
    Seal and seal assembly for well tools 失效
    密封和密封组件用于井具

    公开(公告)号：US4753444A

    公开(公告)日：1988-06-28

    申请号：US925279

    申请日：1986-10-30

    申请人： Alan T. Jackson ,  Thomas W. Ray ,  Eduardo Alvarez

    发明人： Alan T. Jackson ,  Thomas W. Ray ,  Eduardo Alvarez

    IPC分类号： C08K7/06 ,  C08L27/12 ,  C08L61/18 ,  E21B33/12 ,  F16J15/20 ,  F16J15/32 ,  F16J15/46 ,  C08G8/02 ,  E21B33/128 ,  F16J15/56

    CPC分类号： F16J15/3284 ,  C08K7/06 ,  C08L27/12 ,  E21B33/1208 ,  F16J15/20 ,  C08L61/18 ,  Y10S277/938 ,  Y10S277/944

    摘要： A seal and seal assembly for use with well tools, such particularly as well packers, for sealing the annulus between the well packer mandrel and the wall of a well tubing such as casing. The seal is fabricated of an elastomeric-like material comprising fluorocarbon resins, poly arylene ketone, and carbon fibers mounted between end retainer assemblies each comprising a mesh anti-extrusion ring, a tapered mesh backup ring, and a metal backup shoe. The seal has internal longitudinally spaced V-shaped recesses to cause the seal to buckle radially outwardly as it is compressed longitudinally to increase the stress along the middle portion of the seal where the seal meets the well casing inner wall. The seal is useful at high temperatures and pressures such as 550 degrees F. and greater than 15,000 psi.

    摘要翻译： 一种密封和密封组件，用于井封装置，特别是封隔器，用于密封井封隔器心轴与诸如外壳的井管的壁之间的环形空间。 密封件由包含氟碳树脂，聚亚芳基酮和碳纤维的弹性体材料制成，所述碳纤维安装在端部保持器组件之间，每个端部保持器组件包括网状抗挤压环，锥形网格支撑环和金属支撑鞋。 密封件具有内部纵向隔开的V形凹槽，以使得密封件沿纵向压缩时径向向外弯曲，以增加沿着密封件的中间部分处的应力，其中密封件与井套管内壁相遇。 密封件在高温和高压如550华氏度和大于15,000磅/平方英寸的压力下是有用的。