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    • 11. 发明授权
    • Active bottomhole pressure control with liner drilling and completion systems
    • 主动井底压力控制,带衬套钻孔和完井系统
    • US08011450B2
    • 2011-09-06
    • US11491245
    • 2006-07-21
    • Sven KruegerGerald HeisigDetlef HahnVolker KruegerPeter AronstamHarald GrimmerRoger FincherLarry Watkins
    • Sven KruegerGerald HeisigDetlef HahnVolker KruegerPeter AronstamHarald GrimmerRoger FincherLarry Watkins
    • E21B7/00
    • E21B21/08
    • One exemplary APD Device is used with a liner drilling assembly to control wellbore pressure. The APD Device reduces a dynamic pressure loss associated with the drilling fluid returning via a wellbore annulus. Another exemplary APD Device is used to control pressure in a wellbore when deploying wellbore equipment, including running, installing and/or operating wellbore tools. The APD Device is set to reduce a dynamic pressure loss associated with a circulating fluid. The APD Device can also be configured to reduce a surge effect associated with the running of the wellbore equipment. Still another APD Device is used to control pressure in a wellbore when completing or working over a well. Exemplary completion activity can include circulating fluid other than a drilling fluid, such as a gravel slurry. The APD Device can reduce the dynamic pressure loss associated with circulation of both drilling fluid and non-drilling fluid.
    • 一个示例性的APD装置与衬管钻井组件一起使用以控制井筒压力。 APD装置减少与通过井筒环返回的钻井液相关联的动态压力损失。 另一个典型的APD装置用于在部署井筒设备时,包括运行,安装和/或运行井眼工具,来控制井眼中的压力。 设置APD装置以减少与循环流体相关联的动态压力损失。 APD装置还可以被配置为减少与井筒设备的运行相关联的浪涌效应。 另一个APD装置用于在完成或在井上工作时控制井眼中的压力。 示例性的完成活动可以包括除了钻井流体之外的循环流体,例如砾石浆料。 APD装置可以减少与钻井液和非钻井液两者的循环相关的动态压力损失。
    • 15. 发明授权
    • Downhole cutting mill
    • 井下切割机
    • US06981561B2
    • 2006-01-03
    • US10653334
    • 2003-09-02
    • Sven KruegerVolker KruegerHarald GrimmerJoerg ChristanseenVolker Peters
    • Sven KruegerVolker KruegerHarald GrimmerJoerg ChristanseenVolker Peters
    • E21B21/00
    • E21B21/08E21B21/00E21B2021/006
    • A downhole device processes particles entrained in a drilling fluid returning up a wellbore. In one embodiment, the device includes a housing having at least one cutting surface formed in a chamber of a housing. A cutting head disposed in the chamber crushes or comminutes the particles entrained in the drilling fluid to a predetermined size. The device is disposed in the wellbore and processes the entrained particles before they enter a selected wellbore device such as a pump. In certain embodiments, the housing has at least two chambers, wherein the entrained particles are reduced to a first predetermined size in the first chamber, a second predetermined size in the second chamber, etc. Also, the housing can include an operator that generates an energy field that reduces the size of the particles entrained in the drilling fluid to a first predetermined size when the particles flow through the energy field.
    • 井下装置处理夹带在返回井眼的钻井液中的颗粒。 在一个实施例中,该装置包括具有形成在壳体的腔室中的至少一个切割表面的壳体。 设置在室中的切割头将夹带在钻井液中的颗粒粉碎或粉碎至预定尺寸。 该装置设置在井眼中,并且在夹带的颗粒进入选定的井筒装置例如泵之前处理夹带的颗粒。 在某些实施例中,壳体具有至少两个腔室,其中夹带的颗粒在第一腔室中被还原成第一预定尺寸,在第二腔室中被还原成第二预定尺寸。此外,壳体可以包括操作者, 能量场,当颗粒流过能量场时,其将夹带在钻井液中的颗粒的尺寸减小到第一预定尺寸。
    • 16. 发明授权
    • Downhole activatable annular seal assembly
    • 井下可激活的环形密封组件
    • US06957698B2
    • 2005-10-25
    • US10601742
    • 2003-06-23
    • Volker KruegerHarald GrimmerSven Krueger
    • Volker KruegerHarald GrimmerSven Krueger
    • E21B21/00E21B21/08E21B21/10E21B33/126E21B33/127
    • E21B21/00E21B21/08E21B21/10E21B33/126E21B33/127E21B2021/006
    • Devices and methods are described for establishing an effective annular seal about between an active pressure differential device and a surrounding wellbore sidewall. In other aspects, the invention provides a means of selectively activating such a seal during drilling operations or other operations wherein drilling mud is flowed through the drill string and returns through the annulus. The annular seal assembly may include an inflatable packer element and a hydraulic inflation system. The hydraulic inflation system uses the fluid pressure provided by drilling mud that is returning to the surface via the annulus to inflate the packer element and set the seal. The hydraulic inflation system also buffers and regulates the fluid pressure setting the packer element to avoid overinflation of the element. In other aspects, the seal assembly may comprise a set of mud cups that are set against the borehole sidewall using a pressure differential across the seal assembly or a spring-biased seal element.
    • 描述了用于在主动压差装置和周围井筒侧壁之间建立有效的环形密封件的装置和方法。 在其他方面,本发明提供了一种在钻井操作或其他操作中选择性地激活这种密封的装置,其中钻井泥浆流过钻柱并通过环返回。 环形密封组件可以包括充气封隔器元件和液压充气系统。 液压膨胀系统使用由钻孔泥浆提供的流体压力,该泥浆通过环返回到表面,以使封隔器元件膨胀并设置密封。 液压膨胀系统还缓冲和调节设置封隔器元件的流体压力,以避免元件的过度充气。 在其他方面,密封组件可以包括一组泥杯,其使用跨越密封组件的压差或弹簧偏压的密封元件抵靠钻孔侧壁设置。
    • 17. 发明申请
    • SYSTEM AND METHOD FOR DOWNHOLE BLOWOUT PREVENTION
    • 系统和方法,用于下水道防喷
    • US20100170673A1
    • 2010-07-08
    • US12350557
    • 2009-01-08
    • Sven KruegerHarald GrimmerMichael Koppe
    • Sven KruegerHarald GrimmerMichael Koppe
    • E21B47/00E21B43/12E21B43/00E21B47/06
    • E21B21/10
    • A system for monitoring and controlling fluid flow through a borehole in an earth formation is disclosed. The system includes: a downhole tool configured to be movable within the borehole; and a plurality of interchangeable modules disposed within the downhole tool, the plurality of interchangeable modules including at least a sensor module for detecting a property change in the borehole and a packer module for sealing a portion of the borehole in response to the property change. Each of the plurality of interchangeable modules includes a connection configuration, the connection configuration of one of the modules being removably engageable with at least another of the modules. A method of monitoring and controlling fluid flow through a borehole in an earth formation is also disclosed.
    • 公开了一种用于监测和控制通过地层中钻孔的流体流动的系统。 该系统包括:井下工具,其构造成可在钻孔内移动; 以及设置在所述井下工具内的多个可互换模块,所述多个可互换模块至少包括用于检测钻孔中的特性变化的传感器模块和用于响应于所述特性变化来密封所述钻孔的一部分的封隔器模块。 多个可互换模块中的每一个包括连接配置,其中一个模块的连接配置可移除地与至少另一个模块接合。 还公开了一种监测和控制通过地层中钻孔的流体流动的方法。