Hole Enlargement Drilling Device and Methods for Using Same
    1.
    发明申请
    Hole Enlargement Drilling Device and Methods for Using Same 有权
    扩孔钻孔装置及其使用方法

    公开(公告)号:US20100139981A1

    公开(公告)日:2010-06-10

    申请号:US12689452

    申请日:2010-01-19

    IPC分类号: E21B7/04

    摘要: A bottomhole assembly (BHA) coupled to a drill string includes one or more controllers, and a hole enlargement device that selectively enlarges the diameter of the wellbore formed by the drill bit. The hole enlargement device includes an actuation unit that may move extendable cutting elements o the hole enlargement device between a radially extended position and a radially retracted position. The actuation unit may be responsive to a signal that is transmitted from a downhole and/or a surface location. The hole enlargement device may also include one or more position sensors that transmit a position signal indicative of a radial position of the cutting elements. In an illustrative operating mode, one or more operating parameters of the hole enlargement device may be adjusted based on one or more measured parameters. This adjustment may be done in a closed-loop or automated fashion and/or by human personnel.

    摘要翻译: 耦合到钻柱的井底组件(BHA)包括一个或多个控制器,以及选孔地扩大由钻头形成的井眼的直径的孔扩大装置。 孔扩大装置包括致动单元,该致动单元可在径向延伸位置和径向缩回位置之间移动扩孔装置。 致动单元可以响应于从井下和/或表面位置传递的信号。 孔扩大装置还可以包括一个或多个位置传感器,其传送指示切割元件的径向位置的位置信号。 在说明性操作模式中,可以基于一个或多个测量参数来调整孔放大装置的一个或多个操作参数。 这种调整可以以闭环或自动化方式和/或由人员进行。