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    • 5. 发明授权
    • Pack-off device for use in a wellbore having a packer assembly located therein
    • 用于具有位于其中的封隔器组件的井眼的包装装置
    • US06202742B1
    • 2001-03-20
    • US09185407
    • 1998-11-03
    • Ralph H. Echols
    • Ralph H. Echols
    • E21B33122
    • E21B34/14E21B33/122E21B43/045
    • The present invention provides a gravel pack assembly for use in a wellbore having a packer positioned therein with a minimum inside diameter and a primary packing seal. In one embodiment, the gravel pack assembly comprises a pack-off conduit that is coupable to the packer. The pack-off conduit has a maximum outer diameter that is sufficient to prevent the pack-off conduit from traversing the minimum inside diameter of the packer. The gravel pack assembly further includes a seal positioned about an inside diameter of the pack-off conduit. The seal is engageable with an outer surface of a tool that is passable through the pack-off conduit to inhibit fluid flow between the seal and the tool, uphole from the primary packing seal. The primary packer seal is typically near the uphole end of the packer and is the seal that isolates the downhole zones from the pressure exerted by the fluid uphole from the primary packer seal.
    • 本发明提供一种用于井眼的砾石充填组件,其具有定位在其中的具有最小内径和一次填料密封件的封隔器。 在一个实施例中,砾石充填组件包括可与封隔器耦合的包装管道。 包装管道的最大外径足以防止包装管道穿过封隔器的最小内径。 砾石包装组件还包括围绕包装管道的内径定位的密封件。 密封件可与工具的外表面接合,所述工具的外表面可通过包装管道,以阻止密封件和工具之间的流体流动,从初级填料密封件向上钻孔。 主封隔器密封件通常靠近封隔器的井下端,并且是将井下区域与由初级封隔器密封件的流体向上施加的压力隔离的密封件。
    • 7. 发明授权
    • Running tool for expandable liner hanger and associated methods
    • 用于可扩展衬管的运行工具及相关方法
    • US08393389B2
    • 2013-03-12
    • US11737868
    • 2007-04-20
    • David P. BriscoBrock W. WatsonRalph H. Echols
    • David P. BriscoBrock W. WatsonRalph H. Echols
    • E21B23/00
    • E21B43/103E21B34/14E21B43/105E21B2034/005
    • A running tool includes subassemblies which release the running tool from the liner hanger in response to application of alternating tensile and compressive forces after application of left-hand torque. A running tool includes subassemblies which set the liner hanger in response to left-hand torque followed by increased pressure, and in response to increased pressure without prior left-hand torque being applied. A running tool includes threaded connections, without torque transmitted through the running tool being transmitted by the threaded connections. A method of setting a liner hanger includes applying a compressive force to the running tool; then applying left-hand torque to the running tool; and then applying a tensile force to the running tool. A method of releasing a liner hanger includes applying left-hand torque to the running tool; and then releasing the running tool from the liner hanger by applying a tensile force to the running tool.
    • 运行工具包括子组件,其响应于在施加左转扭矩之后施加交替的拉伸和压缩力而将行进工具从衬管悬挂器释放。 运行工具包括:组件,其响应于左扭矩,随后增加压力而设置衬管悬挂器,并且响应于增加的压力而不施加左前转矩。 运行中的工具包括螺纹连接,没有扭矩传递通过正在运行的工具被螺纹连接传递。 一种设置衬管悬挂器的方法包括:向运行工具施加压缩力; 然后将左手扭矩施加到运行工具上; 然后对运行工具施加张力。 释放衬管悬挂器的方法包括向所述行走工具施加左手扭矩; 然后通过对运行工具施加张力而将行进工具从衬管悬挂器释放。