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公开(公告)号：US4240503A
公开(公告)日：1980-12-23
申请号：US34982
申请日：1979-05-01
申请人： James H. Holt, Jr. , Morris Newman
发明人： James H. Holt, Jr. , Morris Newman
CPC分类号： E21B33/063 , E21B29/08
摘要： Rams are provided in a blowout preventer to shear the drill string and seal the well bore should the need arise. Two shearing rams have cutting blades which shear the drill pipe. A seal member is mounted behind one of the cutting blades and is adapted to move into sealing position after shearing has occurred. Elastsomer flow into areas where there has been damage to the seal member is permitted by the design of the seal member.
摘要翻译： 在防喷器中设置公柱以剪切钻柱并且如果需要则密封井眼。 两个剪切机具有切割钻杆的切割刀片。 密封件安装在一个切割刀片之后，适于在剪切发生之后移动到密封位置。 通过密封构件的设计，允许流入密封构件损坏区域的弹性体。
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公开(公告)号：US07228897B2
公开(公告)日：2007-06-12
申请号：US10676134
申请日：2003-10-01
申请人： James H. Holt, Jr. , Walter R. Chapman , James H. Kritzler , Jeffrey L. Osselburn , Keith E. Lewis
发明人： James H. Holt, Jr. , Walter R. Chapman , James H. Kritzler , Jeffrey L. Osselburn , Keith E. Lewis
IPC分类号： E21B33/00
CPC分类号： E21B21/103 , E21B23/03 , E21B33/16 , E21B43/122
摘要： Well completion cement may be pumped through a side pocket mandrel that includes parallel rows of filler sections to exclude cement from void space within the side pocket tube. The filler sections are drilled with cross-flow jet channels and surface upsets to stimulate scrubbing turbulence by well working fluid behind a cement wiper plug. The wiper plug includes leading and trailing groups of wiper discs secured to an elongated shaft. The two wiper groups are separated by a distance that permits the leading seal group to gain traction seal before the push seal on the trailing wiper group is lost. A spring centralizer spans a center section of the shaft between the two wiper groups to maintain axial alignment of the shaft as the plug traverses the length of a mandrel.
摘要翻译： 完井水泥可以通过包括平行的填料段的侧袋心轴泵送，以从侧袋管腔内的空隙排除水泥。 填充部分钻有横流喷射通道和表面扰动，以通过水泥刮水器插头后面的井下工作流体刺激洗涤湍流。 刮水器插头包括固定到细长轴上的雨刷盘的前后组。 两个刮水器组分开一段距离，允许前导密封组在拖把组件的推压密封件丢失之前获得牵引密封。 弹簧对中器跨越两个擦拭器组之间的轴的中心部分，以在塞子穿过心轴的长度时保持轴的轴向对准。
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公开(公告)号：US07841399B2
公开(公告)日：2010-11-30
申请号：US12138735
申请日：2008-06-13
摘要： A flow adapter includes an adapter body which defines a central axial flow bore and one or more lateral flow openings for fluid communication between the central flow bore and a production tubing flowbore surrounding the adapter. The central axial flow bore of the flow adapter provides a flow restriction which creates a pressure drop across the flow adapter. The flow restriction may be in the form of a conically tapered flowbore wherein the downstream end of the flowbore has a diameter that is less than the diameter of the upstream end of the flowbore.
摘要翻译： 流动适配器包括适配器主体，其限定中心轴向流动孔和一个或多个侧向流动开口，用于在中心流动孔和围绕适配器的生产管道流体之间的流体连通。 流动适配器的中心轴向流动孔提供流量限制，其在整个流动适配器上产生压降。 流量限制可以是锥形锥形流体的形式，其中流道的下游端的直径小于流体孔的上游端的直径。
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公开(公告)号：US06491105B2
公开(公告)日：2002-12-10
申请号：US09803635
申请日：2001-03-09
申请人： James H. Holt, Jr.
发明人： James H. Holt, Jr.
IPC分类号： E21B4312
CPC分类号： E21B43/123 , Y10T137/1116 , Y10T137/2934
摘要： The present invention provides a cross-over housing for a gas lift valve. In the present invention, the series of radial apertures, or jets, typically utilized within the cross-over housing of a production pressure operated gas lift valve are removed. In their place, a substantially continuous through opening is employed, having an area somewhat greater than the area of the pressure chamber seat. This avoids the occurrence of sonic flow, or critical flow, within the jets of the prior art which hampered the ability of the pressure chamber valve to close. The new configuration for the cross-over housing allows the bellows within the pressure chamber to sense the decrease in production fluid pressure, or tubing pressure, as gas is injected, allowing the pressure chamber valve to be reseated.
摘要翻译： 本发明提供一种用于气举阀的交叉外壳。 在本发明中，通常在生产压力操作的气举阀的交叉壳体内使用的一系列径向孔或喷嘴被去除。 在它们的位置，使用基本上连续的通孔，其面积稍大于压力室座的面积。 这避免了现有技术的射流内的声流或临界流的发生，这阻碍了压力室阀关闭的能力。 用于交叉外壳的新配置允许压力室内的波纹管感测到气体注入时生产流体压力或管道压力的降低，允许压力室阀被重新排出。
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公开(公告)号：US4759410A
公开(公告)日：1988-07-26
申请号：US904523
申请日：1986-09-05
IPC分类号： E21B23/03
CPC分类号： E21B23/03 , Y10T29/49938
摘要： A side pocket mandrel for use in well tubing. The mandrel has a body, having an open bore extending through the body in alignment with the well tubing, and a side pocket offset from the bore. A valve receptacle is formed in the side pocket of the mandrel. The body of the mandrel has a plurality of forged indentations. These indentations are axially spaced above the valve receptacle and extend into the side pocket for a distance sufficient to keep well tools from entering the valve receptacle. The indentations may also taper away from the valve receptacle.
摘要翻译： 用于井筒管的侧口心轴。 心轴具有主体，其具有延伸穿过主体的开口孔，与孔管对准，以及从孔偏移的侧袋。 在心轴的侧袋中形成阀容器。 心轴的主体具有多个锻造压痕。 这些压痕在阀座上方轴向间隔开并延伸到侧袋中足以保持良好的工具不进入阀座的距离。 压痕也可以从阀座逐渐变细。
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