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    • 2. 发明授权
    • Drill bit with a flow interrupter
    • 用流动断路器钻头
    • US08544567B2
    • 2013-10-01
    • US12638175
    • 2009-12-15
    • Laurier E. ComeauGeir HarelandJeff JanzenJohn Kaminski
    • Laurier E. ComeauGeir HarelandJeff JanzenJohn Kaminski
    • E21B10/38E21B10/60
    • E21B10/602E21B7/24E21B10/38E21B10/60E21B28/00
    • A drill bit comprises: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending through the drill bit head to the cutting face; a flow interrupter within the drill bit head and positioned to interrupt flow of fluid through the flow passage; and a power section connected to drive the flow interrupter and cause, in operation, variable flow of fluid through the flow passage. A method of drilling comprises: flowing fluid through a flow passage extending through a drill bit head to a cutting face of the drill bit head, the cutting face having one or more fixed cutting elements; and driving a flow interrupter within the drill bit head with a power section to interrupt the flow of fluid through the flow passage and cause variable flow of fluid through the flow passage.
    • 钻头包括:钻头头,其具有带有一个或多个固定切割元件的切割面; 流动通道,其延伸穿过钻头头到切割面; 钻头头内的流动断流器,其定位成中断流过流动通道的流体; 以及连接以驱动所述流动断流器并且在操作中导致流体流过所述流动通道的可变流动的动力部分。 钻井方法包括:将流体流过延伸穿过钻头头的流动通道到钻头头的切割面,切割面具有一个或多个固定的切割元件; 以及用动力部分在钻头头内驱动一个流动断路器,以中断通过该流动通道的流体流动,并使流体流过该流动通道。
    • 7. 发明申请
    • DRILL BIT WITH A FLOW INTERRUPTER
    • 钻头与流动中断器
    • US20110000716A1
    • 2011-01-06
    • US12638175
    • 2009-12-15
    • Laurier E. ComeauGeir HarelandJeff JanzenJohn Kaminski
    • Laurier E. ComeauGeir HarelandJeff JanzenJohn Kaminski
    • E21B10/60E21B10/42E21B7/00
    • E21B10/602E21B7/24E21B10/38E21B10/60E21B28/00
    • A drill bit is disclosed, comprising: a drill bit head having a cutting face with one or more fixed cutting elements; a flow passage extending through the drill bit head to the cutting face; a flow interrupter within the drill bit head and positioned to interrupt flow of fluid through the flow passage; and a power section connected to drive the flow interrupter and cause, in operation, variable flow of fluid through the flow passage. A method of drilling is also disclosed comprising: flowing fluid through a flow passage extending through a drill bit head to a cutting face of the drill bit head, the cutting face having one or more fixed cutting elements; and driving a flow interrupter within the drill bit head with a power section to interrupt the flow of fluid through the flow passage and cause variable flow of fluid through the flow passage.
    • 公开了一种钻头,包括:钻头头,其具有带有一个或多个固定切割元件的切割面; 流动通道,其延伸穿过钻头头到切割面; 钻头头内的流动断流器,其定位成中断流过流动通道的流体; 以及连接以驱动所述流动断流器并且在操作中导致流体流过所述流动通道的可变流动的动力部分。 还公开了一种钻孔方法,包括:使流体流过延伸穿过钻头头的流动通道到钻头头的切割面,切割面具有一个或多个固定切割元件; 以及用动力部分在钻头头内驱动一个流动断路器,以中断通过该流动通道的流体流动,并使流体流过该流动通道。