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    • 3. 发明授权
    • Inductively coupled method and apparatus of communicating with wellbore equipment
    • 与井筒设备通信的感应耦合方法和装置
    • US07165618B2
    • 2007-01-23
    • US10701325
    • 2003-11-04
    • Mark W. BrockmanHerve OhmerDavid L. Malone
    • Mark W. BrockmanHerve OhmerDavid L. Malone
    • E21B43/00
    • E21B41/0042E21B17/003E21B17/028E21B41/0035E21B47/12E21B47/122
    • A method and apparatus that allows communications of electrical power and signaling from downhole component to another downhole component employs an inductive coupler assembly. In one arrangement, one portion of the inductive coupler assembly is attached to a production tubing section and the other portion of the inductive coupler assembly is attached to a casing or other liner section. The production tubing inductive coupler portion is electrically connected to a cable over which electrical power and signals may be transmitted. Such power and signals are magnetically coupled to the inductive coupler portion in the casing or liner section and communicated to various electrical devices mounted outside the casing or liner section. In other arrangements, inductive coupler assemblies may be used to couple electrical power and signals from the main bore to components in lateral branches of a multilateral well.
    • 允许从井下部件到另一井下部件的电力和信令的通信的方法和装置采用电感耦合器组件。 在一种布置中,电感耦合器组件的一部分附接到生产管道部分,并且电感耦合器组件的另一部分附接到壳体或其它衬套部分。 生产管道电感耦合器部分电连接到可以传输电功率和信号的电缆。 这种功率和信号被磁耦合到壳体或衬套部分中的感应耦合器部分并且传递到安装在壳体或衬套部分外部的各种电气装置。 在其他布置中,电感耦合器组件可用于将来自主孔的电功率和信号耦合到多边井的侧向分支中的组件。
    • 8. 发明授权
    • Method and apparatus for accurate milling of windows in well casings
    • 井套内窗口精确铣削的方法和装置
    • US06488090B1
    • 2002-12-03
    • US09694517
    • 2000-10-23
    • Herve Ohmer
    • Herve Ohmer
    • E21B708
    • E21B7/061E21B29/06
    • A method and apparatus for predictable downhole milling of a casing window having predetermined location, orientation, dimension and contour geometry. An elongate substantially rigid milling shaft has at least one casing window milling element in fixed relation therewith and has a pilot mill in articulated and rotary driven connection with the milling shaft. The milling shaft is in articulated and rotary driven connection with a rotary drive mechanism. The articulated connection of the pilot mill and milling shaft may incorporate an articulation control system to permit the pilot mill to be maintained substantially coaxial with the milling shaft so that its trajectory at a predetermined stage of window milling can be controlled by the milling shaft when positive guiding by a deflecting tool can no longer be ensured. The deflecting tool is adapted to be set within the well casing and defines an inclined pilot mill guide surface for guiding the pilot mill along a predetermined inclined trajectory for milling into the well casing. The deflecting tool incorporates a generally cylindrical bearing for guiding and providing rotational stabilization to the pilot mill during initial window milling to ensure the accuracy of the pilot bore being milled through the well casing and into the surrounding formation. During window milling the pilot mill guides the milling shaft so that the string mills of the milling shaft remove a portion of the pilot mill guide bearing and form a guide face of predetermined contour on the deflecting tool for guiding other tools through the casing window and into the lateral bore. The deflecting tool may be of tubular geometry so as to guide not only the pilot mill but also the string mill and may also receive the rotary drive motor for guiding and stabilizing thereof.
    • 一种具有预定位置,方向,尺寸和轮廓几何形状的壳体窗口可预测井下铣削的方法和装置。 细长的基本上刚性的铣削轴具有与其固定关系的至少一个壳体窗铣削元件,并且具有与铣削轴铰接和旋转驱动连接的先导磨。 铣削轴与旋转驱动机构铰接和旋转驱动连接。 先导磨机和铣削轴的铰接连接可以包括铰接控制系统,以允许先导磨机与铣削轴保持基本上同轴,使得其在窗铣的预定阶段的轨迹可以由铣削轴当正时 不能确保由偏转工具引导。 偏转工具适于设置在井套内并且限定倾斜的先导式轧机引导表面,用于沿着预定的倾斜轨迹引导先导式铣刀,用于铣削到井套管中。 偏转工具包括一个大体上圆柱形的轴承,用于在初始窗铣过程中引导和提供旋转稳定性到先导式磨机,以确保先导孔的精度通过井套被铣削并进入周围地层。 在铣削铣削期间,先导铣刀引导铣削轴,使得铣削轴的线铣刀移除导向铣刀导向轴承的一部分,并在偏转工具上形成预定轮廓的引导面,用于引导其他工具穿过套管窗口并进入 横向孔。 偏转工具可以是管状几何形状,以便不仅引导先导磨机而且还引导串磨机,还可以接收用于引导和稳定旋转驱动马达。
    • 9. 发明授权
    • Method and apparatus for accurate milling of windows in well casings
    • 井套内窗口精确铣削的方法和装置
    • US06209645B1
    • 2001-04-03
    • US09293821
    • 1999-04-16
    • Herve Ohmer
    • Herve Ohmer
    • E21B2906
    • E21B7/061E21B29/06
    • A method and apparatus for predictable downhole milling of a casing window having predetermined location, orientation, dimension and contour geometry. An elongate substantially rigid milling shaft has at least one casing window milling element in fixed relation therewith and has a pilot mill in articulated and rotary driven connection with the milling shaft. The milling shaft is in articulated and rotary driven connection with a rotary drive mechanism. The articulated connection of the pilot mill and milling shaft may incorporate an articulation control system to permit the pilot mill to be maintained substantially coaxial with the milling shaft so that its trajectory at a predetermined stage of window milling can be controlled by the milling shaft when positive guiding by a deflecting tool can no longer be ensured. The deflecting tool is adapted to be set within the well casing and defines an inclined pilot mill guide surface for guiding the pilot mill along a predetermined inclined trajectory for milling into the well casing. The deflecting tool incorporates a generally cylindrical bearing for guiding and providing rotational stabilization to the pilot mill during initial window milling to ensure the accuracy of the pilot bore being milled through the well casing and into the surrounding formation. During window milling the pilot mill guides the milling shaft so that the string mills of the milling shaft remove a portion of the pilot mill guide bearing and form a guide face of predetermined contour on the deflecting tool for guiding other tools through the casing window and into the lateral bore.
    • 一种具有预定位置,方向,尺寸和轮廓几何形状的壳体窗口可预测井下铣削的方法和装置。 细长的基本上刚性的铣削轴具有与其固定关系的至少一个壳体窗铣削元件,并且具有与铣削轴铰接和旋转驱动连接的先导磨。 铣削轴与旋转驱动机构铰接和旋转驱动连接。 先导磨机和铣削轴的铰接连接可以包括铰接控制系统,以允许先导磨机与铣削轴保持基本上同轴,使得其在窗铣的预定阶段的轨迹可以由铣削轴当正时 不能确保由偏转工具引导。 偏转工具适于设置在井套内并且限定倾斜的先导式轧机引导表面,用于沿着预定的倾斜轨迹引导先导式铣刀,用于铣削到井套管中。 偏转工具包括一个大体上圆柱形的轴承,用于在初始窗铣过程中引导和提供旋转稳定性到先导式磨机,以确保先导孔的精度通过井套被铣削并进入周围地层。 在铣削铣削期间,先导铣刀引导铣削轴,使得铣削轴的线铣刀移除导向铣刀导向轴承的一部分,并在偏转工具上形成预定轮廓的引导面,用于引导其他工具穿过套管窗口并进入 横向孔。
    • 10. 发明授权
    • Device for locking a set of gimbal-mounted detectors
    • 用于锁定一组万向架安装式探测器的装置
    • US4701890A
    • 1987-10-20
    • US855024
    • 1986-04-23
    • Herve OhmerAlain G. M. Delpuech
    • Herve OhmerAlain G. M. Delpuech
    • E21B23/01G01V1/16G01V11/00G01V1/00
    • E21B23/01G01V1/16G01V11/005Y10S367/911
    • A logging sonde for evaluating underground formations traversed by a borehole is disclosed. The sonde contains a frame which is free to rotate relative to the cylindrical body of the sonde. The frame supports a plurality of detector means including at least one detector which is free to rotate relative to the frame. Also attached to the frame are locking means including braking means and a solenoid for disengaging the braking means from their engaged surfaces. In a rest position, the braking means are arranged in such a manner as to lock the detector means relative to the cylindrical body. The invention is applicable, in particular, to geophones intended to detect seismic waves along three orthogonal axes, including a vertical axis, regardless of the tilt of the sonde.
    • 公开了一种用于评估钻孔穿过的地下构造的测井仪。 探头包含相对于探头的圆柱体自由旋转的框架。 框架支撑多个检测器装置,其包括相对于框架自由旋转的至少一个检测器。 还附接到框架的是锁定装置,包括制动装置和用于使制动装置与其接合表面分离的螺线管。 在静止位置,制动装置以相对于圆柱体锁定检测器装置的方式布置。 本发明特别适用于地震检波器,其意图是检测包括垂直轴在内的三个正交轴的地震波,而不管探头的倾斜。