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    • 54. 发明申请
    • DRILL BIT ARM POCKET
    • 钻头臂口袋
    • WO2015065440A1
    • 2015-05-07
    • PCT/US2013/067804
    • 2013-10-31
    • HALLIBURTON ENERGY SERVICES, INC.
    • CRAWFORD, Micheal Burl
    • E21B10/44E21B10/43
    • E21B10/20E21B10/08E21B47/01
    • A disclosed embodiment for a drill bit arm for a rotary subterranean drill bit includes a pocket that extends radially inward from an outer surface of the drill bit arm. The pocket may include a void where work piece material has been removed. The pocket may be next to a leading edge of the drill bit arm and may extend to remove at least a portion of a trailing edge of the drill bit arm. When the drill bit arm includes a lifting surface, the pocket may be next to and follow an upward curvature of the lifting surface. The pocket may reduce wear and tear on the drill bit arm during operation. The pocket may provide a location for placing a desired piece of equipment, such as an instrumentation element and/or a communication element.
    • 用于旋转地下钻头的钻头臂的公开的实施例包括从钻头臂的外表面径向向内延伸的凹槽。 袋子可以包括已经去除工件材料的空隙。 袋可以在钻头臂的前缘旁边,并且可以延伸以移除钻头臂的后缘的至少一部分。 当钻头臂包括提升表面时,该凹槽可以在提升表面的上方的曲率附近并且跟随该提升表面的向上曲率。 在操作过程中,口袋可能会减少钻头臂的磨损。 口袋可以提供放置所需的设备(例如仪表元件和/或通信元件)的位置。