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    Rotary drill bits, methods of inspecting rotary drill bits, apparatuses and systems therefor
    1.
    发明申请
    Rotary drill bits, methods of inspecting rotary drill bits, apparatuses and systems therefor 有权
    旋转钻头，检查旋转钻头的方法，装置和系统

    公开(公告)号：US20070256862A1

    公开(公告)日：2007-11-08

    申请号：US11787693

    申请日：2007-04-17

    申请人： Jeffrey Lund ,  Nicholas Lyons ,  Eric Sullivan ,  Terry Watts

    发明人： Jeffrey Lund ,  Nicholas Lyons ,  Eric Sullivan ,  Terry Watts

    IPC分类号： E21B47/00

    CPC分类号： G01N29/04 ,  G01N29/265 ,  G01N29/27 ,  G01N29/275 ,  G01N29/28 ,  G01N2291/044 ,  G01N2291/045 ,  G01N2291/101 ,  G01N2291/2634 ,  G01N2291/2636 ,  G01N2291/267 ,  G01N2291/2698

    摘要： A method for conducting nondestructive internal inspection of a rotary drill bit used for drilling subterranean formations comprises communicating ultrasonic waves into a drill bit and detecting ultrasonic waves that are reflected by at least a portion of the drill bit. In some embodiments, the waves may be directed into the drill bit from within a longitudinal bore thereof. Reflected waves also may be detected from within the bore. The methods may be used to develop threshold acceptance criteria for classifying drill bits as acceptable or unacceptable to prevent catastrophic failures of drill bits during use. Systems and apparatuses are disclosed for conducting nondestructive ultrasonic inspection of a drill bit used for drilling subterranean formations. The systems and apparatuses may comprise an ultrasonic probe configured for insertion within an internal longitudinal bore of a drill bit. Drill bits are disclosed that are configured to facilitate nondestructive ultrasonic inspection thereof.

    摘要翻译： 用于对用于钻探地下地层的旋转钻头进行非破坏性内部检查的方法包括将超声波传播到钻头中并检测由钻头的至少一部分反射的超声波。 在一些实施例中，波浪可以从其纵向孔内引导到钻头中。 也可以从孔内检测出反射波。 这些方法可用于制定用于将钻头分类为可接受或不可接受的阈值接受标准，以防止在使用期间钻头的灾难性故障。 公开了用于对用于钻探地下地层的钻头进行非破坏性超声波检测的系统和装置。 所述系统和装置可以包括构造成用于插入钻头的内部纵向孔内的超声波探头。 公开了钻头，其被配置为便于其非破坏性超声波检查。

    METHOD FOR NON-DESTRUCTIVELY EVALUATING ROTARY EARTH BORING DRILL COMPONENTS AND DETERMINING FITNESS-FOR-USE OF THE SAME
    2.
    发明申请
    METHOD FOR NON-DESTRUCTIVELY EVALUATING ROTARY EARTH BORING DRILL COMPONENTS AND DETERMINING FITNESS-FOR-USE OF THE SAME 审中-公开
    非破坏性评估旋转地球钻孔组件的方法和确定其适用性的方法

    公开(公告)号：US20100329081A1

    公开(公告)日：2010-12-30

    申请号：US12492705

    申请日：2009-06-26

    申请人： Eric Sullivan ,  David Curry ,  Xiamin Cheng ,  Tu Tien Trinh ,  Terry Watts ,  John F. Bradford ,  Aaron J. Dick ,  Chih Lin

    发明人： Eric Sullivan ,  David Curry ,  Xiamin Cheng ,  Tu Tien Trinh ,  Terry Watts ,  John F. Bradford ,  Aaron J. Dick ,  Chih Lin

    IPC分类号： G01S3/80 ,  E21B10/36

    CPC分类号： E21B10/00 ,  E21B47/14 ,  G01N29/043 ,  G01N29/262 ,  G01N29/265 ,  G01N2291/0258 ,  G01N2291/044 ,  G01N2291/2693

    摘要： A method of non-destructively identifying and characterizing defects in a rotary drill component is provided. The method includes providing a drill component and an ultrasonic test system including a phased array ultrasonic transducer (PAUT). The method also includes acoustically coupling the PAUT to a surface location, transmitting focused ultrasonic acoustic waves at the location into the PAUT and recording a reflected acoustic response corresponding to a portion of a predetermined volume of a microstructure of the component associated with the location on the surface. The method also includes storing the response and moving one of the transducer or the component to a plurality of unique locations representative of the predetermined microstructure and repeating these steps. The method also includes processing the responses and providing an output signal to an output device configured to provide an output indicative of differences in the output signal within the predetermined volume of the microstructure.

    摘要翻译： 提供了一种非破坏性地识别和表征旋转钻头部件中的缺陷的方法。 该方法包括提供钻组件和包括相控阵超声波换能器（PAUT）的超声波测试系统。 该方法还包括将PAUT声学耦合到表面位置，在该位置处将聚焦的超声波波传输到PAUT中，并且记录对应于与该位置相关联的组件的预定体积的微结构的一部分的反射声响应 表面。 该方法还包括存储响应并将换能器或组件之一移动到表示预定微结构的多个独特位置，并重复这些步骤。 该方法还包括处理响应并向输出装置提供输出信号，输出装置被配置成提供指示微结构的预定体积内的输出信号的差异的输出。

    Drilling apparatus with reduced exposure of cutters
    3.
    发明申请
    Drilling apparatus with reduced exposure of cutters 有权
    具有减少刀具暴露的钻孔设备

    公开(公告)号：US20060278436A1

    公开(公告)日：2006-12-14

    申请号：US11507279

    申请日：2006-08-21

    申请人： Mark Dykstra ,  William Heuser ,  Michael Doster ,  Theodore Zaleski ,  Jack Oldham ,  Terry Watts ,  Daniel Ruff ,  Rodney Walzel ,  Christopher Beuershausen

    发明人： Mark Dykstra ,  William Heuser ,  Michael Doster ,  Theodore Zaleski ,  Jack Oldham ,  Terry Watts ,  Daniel Ruff ,  Rodney Walzel ,  Christopher Beuershausen

    IPC分类号： E21B10/62

    CPC分类号： E21B10/43 ,  E21B10/42 ,  E21B10/46 ,  E21B10/567 ,  E21B10/573 ,  E21B12/04 ,  E21B2010/566

    摘要： A rotary drilling apparatus and method for drilling subterranean formations, including a body being provided with at least one cutter thereon exhibiting reduced, or limited, exposure to the formation, so as to control the depth-of-cut of the at least one cutter, so as to control the volume of formation material cut per rotation of the drilling apparatus, as well as to control the amount of torque experienced by the drilling apparatus and an optionally associated bottomhole assembly regardless of the effective weight-on-bit are all disclosed. The exterior of the drilling apparatus may include a plurality of blade structures carrying at least one such cutter thereon and including a sufficient amount of bearing surface area to contact the formation so as to generally distribute an additional weight applied to the drilling apparatus against the bottom of the borehole without exceeding the compressive strength of the formation rock.

    摘要翻译： 一种用于钻探地下地层的旋转钻井设备和方法，包括：主体，其上设置有至少一个切割器，其上展现出减少或限制地暴露于地层，以便控制至少一个切割器的切割深度， 以便控制钻孔设备每旋转切割成形材料的体积，以及控制钻孔设备和任选相关的井下组件所经历的扭矩的数量，而不管有效的钻头位置如何。 钻孔设备的外部可以包括多个叶片结构，其在其上承载至少一个这样的切割器，并且包括足够量的轴承表面面积以接触地层，以便大体上分配施加到钻孔设备的附加重量， 钻孔不超过地层岩石的抗压强度。