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    • 7. 发明授权
    • Blowout preventer
    • 防喷器
    • US4345735A
    • 1982-08-24
    • US288711
    • 1981-07-31
    • John Regan
    • John Regan
    • E21B33/06
    • F16J15/46E21B33/06F16J15/168
    • An oil well blowout preventer includes a radially compressible annular packing having radially-sectored end portions in a housing having axially aligned upper and lower bores communicating with the inner bore of the packing and with the sectored ends, and also includes hydraulic means for radially constricting the packing, thereby causing it to axially expand. A plurality of circumferentially-arranged rigid wedge members carried by the sectored end portions are individually movable radially into the bores to control the axial expansion whereby radial sectors of the packing may move sequentially inward to effect a seal between the upper and lower bores in response to progressive axial expansion of the packing as the packing undergoes nonuniform sector-wise radial compression. The inward radial movement of the rigid members are limited by stops to a common radial position independent of the uniformity of the radial compression. The blowout preventer effects a seal between the inner bore and the upper and lower bores regardless of the presence of an oil well tool therein.
    • 油井防喷器包括可径向压缩的环形密封件,其具有在壳体中具有径向切除的端部,该壳体具有与衬垫的内孔连通并具有截面的轴向对准的上孔和下孔,并且还包括用于径向收缩 填充,从而使其轴向膨胀。 多个沿圆周布置的刚性楔形构件由圆柱形布置的刚性楔形构件可以径向分别地移动到孔中以控制轴向膨胀,由此密封件的径向扇形部可以顺序向内移动,以响应于上部孔和下孔而形成密封 当包装经历不均匀的扇形径向压缩时,填料的逐渐轴向膨胀。 刚性构件的向内径向运动被限制到与径向压缩的均匀性无关的公共径向位置。 防喷器在内孔和上下孔之间产生密封,而不管其中是否有油井工具。
    • 10. 发明授权
    • Keying means for segmented end ring blowout preventer
    • 用于分段端环防喷器的键控手段
    • US4358085A
    • 1982-11-09
    • US285677
    • 1981-07-20
    • John ReganBruce J. Watkins
    • John ReganBruce J. Watkins
    • E21B33/06F16J15/46
    • F16J15/46E21B33/06
    • An improvement in blowout preventer apparatus of the type having a radially compressible annular packing mounted within a housing chamber, the housing having axially aligned upper and lower conical bores communicating with an inner bore of the annular packing, the packing axially expanding towards said upper and lower bores upon said radial compression, a plurality of rigid end ring segments attached to sectored webs of the ends of the packing and thereby individually movable axially outwardly and radially inwardly relative to the upper and lower conical bores to control the packing axial expansion during radial compression of the packing has keying means cooperating with the rigid end ring segments of the packing and the conical bores for guiding a sector-wise movement of the segments in individually separate and predetermined paths along the conical bores to a common radial position independent of the uniformity of the packing radial compression and/or axial expansion. Exemplary keying means include a key member provided in a slot in the packing end ring segment and a mating keyway in the conical bore.
    • 具有安装在容纳室内的可径向压缩的环形填料的类型的防喷器装置的改进,所述壳体具有与环形填料的内孔连通的轴向对准的上和下锥形孔,所述填料沿着所述上部和下部轴向膨胀 在所述径向压缩时开孔,多个刚性端环段连接到衬垫的端部的分段腹板,从而相对于上和下锥形孔单独地轴向向外和径向向内移动,以在径向压缩期间控制衬垫轴向膨胀 密封件具有与密封件的刚性端环段和锥形孔配合的键合装置,用于沿着锥形孔沿独立且预定的路径将段的扇形运动引导到公共径向位置,而与 包装径向压缩和/或轴向膨胀。 示例性的键控装置包括设置在包装端环段中的槽中的键构件和锥形孔中的配合键槽。