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2 条记录 (耗时 0.029 秒)

    Rotating acoustic transducer head for cement bond evaluation tool
    1.
    发明授权
    Rotating acoustic transducer head for cement bond evaluation tool 失效
    用于水泥债券评估工具的旋转声换能器头

    公开(公告)号：US5841734A

    公开(公告)日：1998-11-24

    申请号：US870116

    申请日：1997-06-05

    申请人： Thomas E. Ritter ,  James Robert Birchak ,  James W. Stroud ,  Mack H. Brown ,  James E. Masino ,  John W. Minear

    发明人： Thomas E. Ritter ,  James Robert Birchak ,  James W. Stroud ,  Mack H. Brown ,  James E. Masino ,  John W. Minear

    IPC分类号： E21B47/00 ,  G01V1/52 ,  G01V1/00

    CPC分类号： G01V1/52 ,  E21B47/0005 ,  Y10S367/911 ,  Y10S367/912

    摘要： An apparatus for logging a borehole comprises a non-rotating component and a rotating component that is flexibly attached to the non-rotating component and includes a logging head. The rotating component is centralized independently from the non-rotating component such that the rotating component remains centralized as it rotates, regardless of whether the non-rotating component is centralized. The logging head includes at least one signaling device, a hydrostatic pressure balancing system, a sealed, variable-volume fluid reservoir in fluid communication with said transducer, and a motor housed in said logging head for rotating the rotating component. The apparatus can further include a second non-rotating component suspended below the rotating component.

    摘要翻译： 用于记录井眼的装置包括非旋转部件和旋转部件，其被柔性地附接到非旋转部件并且包括测井头。 旋转部件独立于非旋转部件集中，使得旋转部件随着其旋转而保持集中，而不管非旋转部件是否集中。 记录头包括至少一个信号装置，静水压力平衡系统，与所述换能器流体连通的密封可变容积流体储存器，以及容纳在所述测井头中用于旋转旋转部件的马达。 该装置还可包括悬挂在旋转部件下方的第二非旋转部件。

    Adjustable head assembly for ultrasonic logging tools that utilize a rotating sensor subassembly
    2.
    发明授权
    Adjustable head assembly for ultrasonic logging tools that utilize a rotating sensor subassembly 失效
    用于超声波测井工具的可调节头组件，其利用旋转传感器子组件

    公开(公告)号：US6098017A

    公开(公告)日：2000-08-01

    申请号：US925970

    申请日：1997-09-09

    申请人： Mack H. Brown ,  Frank H. McCurdy ,  James W. Stroud

    发明人： Mack H. Brown ,  Frank H. McCurdy ,  James W. Stroud

    IPC分类号： E21B47/01 ,  G01V1/52

    CPC分类号： E21B47/01

    摘要： In preferred embodiments described herein, a transducer head is affixed to the lower end of a wireline borne scanner sub for rotation thereby. The transducer head includes a pair of transducers which may be adjusted radially inward or outward with respect to the head so that optimum standoff may be achieved without the need for numerous transducer heads of various sizes. In a described exemplary embodiment, the transducers are adjusted by means of an indexing system which permits fine control over the amount of adjustment for the transducers.

    摘要翻译： 在本文所述的优选实施例中，换能器头固定到电缆驱动扫描器子的下端以由此旋转。 换能器头包括一对换能器，其可以相对于头部径向向内或向外调节，使得可以实现最佳间隙而不需要各种尺寸的多个换能器头。 在所描述的示例性实施例中，换能器通过分度系统进行调节，该系统允许对换能器的调节量进行精细控制。