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    • 7. 发明申请
    • DRIVEN LATCH MECHANISM
    • 驱动机构
    • US20140332279A1
    • 2014-11-13
    • US14341128
    • 2014-07-25
    • LONGYEAR TM, INC.
    • CHRISTOPHER L. DRENTHGEORGE IONDOVGEORGE IBRAHIM
    • E21B49/02
    • E21B49/02E21B23/02E21B25/02Y10T279/1045Y10T279/1091
    • Implementations include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    • 实施方案包括具有从动闩锁机构的芯筒组件。 从动锁定机构可以相对于钻柱轴向和旋转地锁定芯筒组件。 从动闩锁机构可以包括定位在多个驱动表面上的多个楔形构件。 钻柱的旋转可以导致多个楔形构件在钻柱的内径和多个驱动表面之间楔入,从而相对于钻柱旋转地锁定岩心筒组件。 本发明的实施方案还包括包括这种驱动的闩锁机构的钻井系统,以及使用这种钻井系统取回岩心样品的方法。
    • 10. 发明申请
    • Engineered Materials for Drill Rod Applications
    • 钻杆应用的工程材料
    • US20140182945A1
    • 2014-07-03
    • US13731499
    • 2012-12-31
    • LONGYEAR TM. INC.
    • Christopher L. DrenthShakeel Khalfan
    • E21B17/00
    • E21B17/00
    • Implementations described herein comprise drill rods comprising an integral tubular metallic body having a first ends, an opposing second end, and an elongate midbody extending along a central axis between the first and second ends and where the metallic body defines a central bore that extends along the central axis and has a body inner surface and at least one body bore diameter. In further aspects, the drill rods further comprise an underlying tubular composite lining that has a lining outer surface that is connected to at least the body inner surface of the midbody of the metallic body, the composite lining defining an operative bore that extends along the central axis and has at least one operative bore diameter.
    • 本文所述的实施方案包括钻杆,其包括整体管状金属体,其具有第一端部,相对的第二端部和沿第一和第二端部之间的中心轴线延伸的细长中间体,并且其中金属体限定沿着 中心轴线并具有主体内表面和至少一个体孔直径。 在另外的方面,钻杆还包括下面的管状复合衬里,其具有连接到金属体的中体的至少主体内表面的衬里外表面,复合衬里限定了沿中心延伸的操作孔 并且具有至少一个操作孔直径。