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    • 9. 发明申请
    • Enlarging well bores having tubing therein
    • 在井内扩大井口
    • US20060131076A1
    • 2006-06-22
    • US11019694
    • 2004-12-21
    • Joseph Zupanick
    • Joseph Zupanick
    • E21B10/32
    • E21B7/28E21B10/32E21B43/006
    • An underreamer for forming a cavity within a well bore includes a fluid motor having a first body and a second body arranged about a longitudinal axis. The first body is adapted to rotate about the longitudinal axis in relation to the second body when fluid is passed between the first and second bodies. The fluid motor further defines a longitudinal tubing passage adapted to allow passage of the fluid motor over a tubing string. At least one cutting arm is coupled to rotate with the first body, and radially extendable into engagement with an interior of the well bore to form the cavity.
    • 用于在井眼内形成空腔的扩孔器包括具有围绕纵向轴线布置的第一主体和第二主体的流体马达。 当流体在第一和第二主体之间通过时,第一主体适于围绕纵向轴线相对于第二主体旋转。 流体马达还限定了适于允许流体马达在管柱上通过的纵向管道。 至少一个切割臂被联接以与第一主体一起旋转,并且径向延伸成与井眼的内部接合以形成空腔。
    • 10. 发明申请
    • Method and system for circulating fluid in a well system
    • 在井系统中循环流体的方法和系统
    • US20050257962A1
    • 2005-11-24
    • US11188250
    • 2005-07-22
    • Joseph Zupanick
    • Joseph Zupanick
    • E21B7/04E21B43/00E21B43/30E21B43/40E21B47/09E21F7/00E21B21/14
    • E21B43/40E21B7/046E21B43/006E21B43/305E21B47/09E21F7/00
    • A method for circulating drilling fluid in a well system includes drilling a substantially vertical well bore from a surface to a subterranean zone and drilling an articulated well bore from the surface to the subterranean zone. The articulated well bore is horizontally offset from the substantially vertical well bore at the surface and intersects the substantially vertical well bore at a junction proximate the subterranean zone. The method includes drilling a drainage bore from the junction into the subterranean zone and pumping a drilling fluid through the drill string when drilling the drainage bore. The method also includes providing fluid down the substantially vertical well bore through a tubing. A fluid mixture returns up the substantially vertical well bore outside of the tubing. The fluid mixture comprises the drilling fluid after the drilling fluid exits the drill string.
    • 在井系统中循环钻井液的方法包括从表面到地下区域钻出基本垂直的井眼,并从表面钻探到铰接的井眼到地下区域。 铰接的井眼水平地偏离表面上的基本垂直的井眼,并且在邻近地下区域的连接处与基本垂直的井眼相交。 该方法包括从连接处钻入排水孔至地下区域,并在钻孔时将钻井液泵送穿过钻柱。 该方法还包括通过管道向下提供基本垂直的井筒的流体。 流体混合物返回管道外部的基本垂直的井筒。 在钻井液离开钻柱之后,流体混合物包括钻井液。