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    • 7. 发明授权
    • High temperature and pressure fiber optic feedthrough for borehole usage
    • 用于井眼使用的高温高压光纤馈通
    • US4891640A
    • 1990-01-02
    • US266185
    • 1988-11-03
    • Matthew Ip
    • Matthew Ip
    • G02B6/38G02B6/42G02B6/44
    • G02B6/4428G02B6/4248G02B6/3644
    • A high temperature and high pressure fiber optic feedthrough is set forth to enable communication to the interior of a pressure housing making up a downhole logging tool. An optical fiber is stripped of protective wraps and coverings other than a fluorocarbon coating. It is inserted into a feedthrough fitting formed of an elongate body that feeds to the pressure housing. There is an axial bore which has an internal cavity at the upper end. This cavity receives a conic section of a resilient body which is deformable. Through the use of a specially designed syringe, the optical fiber is passed through this cavity and is positioned on the interior bore of the body. The resilient material is able to expand on application of pressure. The cavity is closed by means of a retainer nut and wear washer. When the nut is tightened, the resilient material extrudes around and along the optical fiber and seals against it to perfect a high pressure, high temperature seal against the intrusion of well fluids.
    • 提出了高温和高压光纤馈通,以使得能够与构成井下测井工具的压力壳体的内部通信。 除了氟碳涂层之外,光纤被剥去保护性包裹物和覆盖物。 它被插入由进给压力壳体的细长主体形成的馈通配件中。 有一个轴向孔,在上端有一个内腔。 该空腔容纳可变形的弹性体的锥形部分。 通过使用专门设计的注射器,光纤通过该腔并被定位在身体的内孔上。 弹性材料能够在施加压力时膨胀。 通过固定螺母和耐磨垫圈关闭空腔。 当螺母拧紧时,弹性材料在光纤周围和沿着光纤的方向挤压,并对其进行密封,从而完成高压,高温密封以防止井液侵入。
    • 8. 发明授权
    • Universal cable head for a multiconductor logging cable
    • 用于多导体测井电缆的通用电缆头
    • US4874327A
    • 1989-10-17
    • US267854
    • 1988-11-07
    • Matthew Ip
    • Matthew Ip
    • E21B17/02E21B17/06E21B47/01H01R13/52H01R13/58H01R13/62
    • E21B47/011E21B17/023E21B17/028E21B17/06H01R13/62H01R13/52H01R13/58
    • A universal cable head is set forth which incorporates a stress relieving stinger on the end of a logging cable. The cable connects with wedge shaped members which grip the end of a cable within a housing. Electrical conductors, seven in number, extend from the end of the cable into the housing and are exposed in an internal cavity. In the cavity, they connect with a set of boots at the back end connecting with feedthrus by bayonet connection, the feedthrus being supported on a transverse bulkhead, and the feedthrus all extend through the bulkhead to locate male plugs within a circular housing. A rotatable threaded sleeve is on the exterior for connection with a mating female member. All of this structure connects universally to mating female connectors on downhole logging tools to provide the requisite number of conductors for downhole logging operations.
    • 提出了一种通用电缆头,其中包括在测井电缆末端施加减压托管架。 电缆与楔形构件连接,楔形构件将电缆的端部夹在外壳内。 数量为7的电导体从电缆的端部延伸到壳体中并暴露在内部空腔中。 在空腔中,它们通过卡口连接与后端连接的一组靴子连接,进料臂被支撑在横向隔板上,并且进料臂全部延伸通过隔板以将公插头定位在圆形壳体内。 外部可旋转的螺纹套筒与配合的雌性构件连接。 所有这种结构通常连接在井下测井工具上的匹配母连接器上,为井下测井作业提供必要数量的导体。