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    • 5. 发明申请
    • Indenting Member for a Drill Bit
    • 压头成员
    • US20080029312A1
    • 2008-02-07
    • US11871644
    • 2007-10-12
    • David HallFrancis LeanyJohn Bailey
    • David HallFrancis LeanyJohn Bailey
    • E21B10/36E21B10/00
    • E21B10/46E21B10/43E21B10/54E21B10/62
    • A drill bit has a bit body intermediate a working face and a shank end adapted for connection to a downhole drill string. The working face has at least three fixed blades converging towards a center of the working face and diverging towards a gauge of the bit, at least one blade having a cone region adjacent the center of the working face. The cone region increases in height away from the center of the working face and towards a nose portion of the at least one blade. An opening is formed in the working face at the center of the bit along an axis of the drill bit's rotation, the opening leading into a chamber with at least one wall. An indenting member is disposed within and extends from the opening, is substantially coaxial with the axis of rotation, and is fixed to the wall of the chamber.
    • 钻头具有位于工作面之间的位体,以及适于连接到井下钻柱的柄端。 工作面具有至少三个固定刀片,其朝向工作面的中心会聚,朝向钻头的量规发散,至少一个叶片具有与工作面的中心相邻的锥形区域。 锥形区域的高度远离工作面的中心并且朝向至少一个叶片的鼻部分增加。 在钻头的中心处的工作面中沿着钻头旋转的轴线形成开口,该开口通向具有至少一个壁的腔室。 凹口构件设置在开口内并且从开口延伸,与旋转轴线基本上同轴,并且固定到腔室的壁。
    • 6. 发明申请
    • Hydraulic Drill Bit Assembly
    • 液压钻头组件
    • US20070114064A1
    • 2007-05-24
    • US11567283
    • 2006-12-06
    • David HallFrancis LeanyScott Dahlgren
    • David HallFrancis LeanyScott Dahlgren
    • E21B10/26
    • E21B10/60E21B4/00E21B10/26E21B10/322E21B10/42E21B10/62E21B21/10E21B47/12
    • In one aspect of the present invention a drill bit assembly has a body portion intermediate a shank portion and a working portion. The working portion has at least one cutting element and the body portion has at least a portion of a jackleg apparatus. The jackleg apparatus has at least a portion of a shaft disposed within a chamber; the shaft has a distal end. The jackleg apparatus has a hydraulic compartment adapted to displace the distal end of the shaft relative to the working portion. The chamber also has an opening proximate the working portion of the assembly. The hydraulic compartment may be part of a hydraulic circuit which has a pump. The pump may have a first section with is rotationally fixed to the body portion and a second section rotationally isolated from the body portion.
    • 在本发明的一个方面,钻头组件具有在柄部分和工作部分之间的主体部分。 工作部分具有至少一个切割元件,并且主体部分具有至少一部分夹头装置。 顶杆装置具有设置在腔室内的轴的至少一部分; 轴具有远端。 顶杆装置具有适于相对于工作部分移动轴的远端的液压隔室。 腔室还具有靠近组件的工作部分的开口。 液压室可以是具有泵的液压回路的一部分。 泵可以具有旋转地固定到主体部分的第一部分和与主体部分旋转地隔离的第二部分。
    • 7. 发明申请
    • Apparatus and method for working asphalt pavement
    • 沥青路面加工设备及方法
    • US20060127180A1
    • 2006-06-15
    • US11010706
    • 2004-12-13
    • David HallFrancis LeanyRobert ChaseGarrett SmithMatthew HellewellJoe Fox
    • David HallFrancis LeanyRobert ChaseGarrett SmithMatthew HellewellJoe Fox
    • E01C23/16
    • E01C23/065E01C23/06
    • A method and apparatus for working asphalt pavement, comprising one or both of a mechanical, hydraulic, electric, or pneumatic means for providing high-speed rotation; a rotary tool comprising a first end comprising a working surface and a second end adapted for connection to the means for providing high-speed rotation; and a screed, cooperatively arranged with the rotary tool, and comprising a working surface adjacent the working surface of the rotary tool, wherein the rotary tool is spun at high speed and applied to the asphalt pavement, frictionally heating the asphalt pavement to a temperature sufficient to work the pavement locally adjacent rotary tool and the screed. The screed and rotary tool comprising abrasion resistant materials selected from the group consisting of high-strength steel, hardened alloys, cemented metal carbide, polycrystalline diamond, and cubic boron nitride. The rotary tool and the screed apparatus may comprise a closed loop control system.
    • 一种用于加工沥青路面的方法和装置,包括用于提供高速旋转的机械,液压,电动或气动装置中的一个或两个; 旋转工具,其包括第一端,其包括工作表面和适于连接到用于提供高速旋转的装置的第二端; 以及与所述旋转工具协同地布置的熨平板,并且包括邻近所述旋转工具的工作表面的工作表面,其中所述旋转工具以高速旋转并施加到沥青路面,将沥青路面摩擦加热到足够的温度 在本地相邻的旋转工具和熨平板上工作路面。 熨平板和旋转工具包括选自高强度钢,硬化合金,硬质合金碳化物,多晶金刚石和立方氮化硼的耐磨材料。 旋转工具和熨平板设备可以包括闭环控制系统。
    • 8. 发明申请
    • A Drill Bit Assembly Adapted to Provide Power Downhole
    • 钻头组件适用于提供井下电力
    • US20070114066A1
    • 2007-05-24
    • US11277380
    • 2006-03-24
    • David HallFrancis Leany
    • David HallFrancis Leany
    • E21B7/04
    • E21B10/62E21B7/064E21B7/067E21B47/00
    • In one aspect of the invention, a drill bit assembly has a body portion intermediate a shank portion and a working portion, the working portion having at least one cutting element. The working portion also has an opening to an axial chamber disposed in the body portion of the assembly. The drill bit assembly also has an axial shaft rotationally isolated from the body portion, the shaft being at least partially disposed within the chamber, and partially protruding form the working portion. The shaft is also in communication with an energy adapter disposed within the drill but assembly and is adapted to use relative motion between the body portion and the shaft to provide power to at least one downhole device.
    • 在本发明的一个方面,一种钻头组件具有在柄部分和工作部分之间的主体部分,工作部分具有至少一个切割元件。 工作部分还具有设置在组件主体部分中的轴向室的开口。 所述钻头组件还具有与所述主体部分旋转地隔离的轴向轴,所述轴至少部分地设置在所述腔室内,并且部分地从所述工作部分突出。 所述轴还与设置在所述钻头或组件内的能量适配器连通,并且适于在所述主体部分和所述轴之间使用相对运动来向至少一个井下装置提供动力。