5.
    发明专利
    未知

    公开(公告)号:IT1320689B1

    公开(公告)日:2003-12-10

    申请号:ITTO20000925

    申请日:2000-10-05

    Inventor: SINOR L ALLEN

    Abstract: A fixed cutter, or rotary drag, bit for drilling subterranean formations, exhibiting an enhanced resistance to bit balling and an improved rate of penetration. The bit includes an auger-like blade configuration, wherein positively raked, relatively tall blades lean rotationally forward to provide increased clearance and volume between the bit face and the formation to facilitate removal of cuttings coming off the tops of the cutters from the bit face. The blades are each substantially contiguous with an elongated, helical gage pad raked rotationally forwardly in the manner of the blades, the longitudinal lengths of the gage pads and the radially outer edges of the blades in combination with their slope providing a stabilizing structure which substantially completely circumferentially encompasses the bit body. The slope or pitch of the helix angle of the blade edges and gage pads may be varied as desired to optimize hydraulic efficiency, cutter requirements of directional drilling, and stability needs. The bit also includes nozzles positioned on the bit face and aimed toward the face of a blade following each respective nozzle to improve cleaning of the blades and to improve the hydraulic energy and fluid velocities along the gage. The bit also preferably includes aggressively raked superabrasive cutters having a ground relief on the substrate supporting the diamond table rotationally behind the table to minimize contact of the substrate material with the formation.

    6.
    发明专利
    未知

    公开(公告)号:ITTO20000925A1

    公开(公告)日:2002-04-05

    申请号:ITTO20000925

    申请日:2000-10-05

    Inventor: SINOR L ALLEN

    Abstract: A fixed cutter, or rotary drag, bit for drilling subterranean formations, exhibiting an enhanced resistance to bit balling and an improved rate of penetration. The bit includes an auger-like blade configuration, wherein positively raked, relatively tall blades lean rotationally forward to provide increased clearance and volume between the bit face and the formation to facilitate removal of cuttings coming off the tops of the cutters from the bit face. The blades are each substantially contiguous with an elongated, helical gage pad raked rotationally forwardly in the manner of the blades, the longitudinal lengths of the gage pads and the radially outer edges of the blades in combination with their slope providing a stabilizing structure which substantially completely circumferentially encompasses the bit body. The slope or pitch of the helix angle of the blade edges and gage pads may be varied as desired to optimize hydraulic efficiency, cutter requirements of directional drilling, and stability needs. The bit also includes nozzles positioned on the bit face and aimed toward the face of a blade following each respective nozzle to improve cleaning of the blades and to improve the hydraulic energy and fluid velocities along the gage. The bit also preferably includes aggressively raked superabrasive cutters having a ground relief on the substrate supporting the diamond table rotationally behind the table to minimize contact of the substrate material with the formation.

    METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS
    7.
    发明申请
    METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS 审中-公开
    形成插件和接地工具的方法

    公开(公告)号:WO2012006281A4

    公开(公告)日:2012-04-19

    申请号:PCT/US2011042952

    申请日:2011-07-05

    CPC classification number: E21B10/46 B24D99/005

    Abstract: Methods of forming inserts for earth-boring tools include providing a material in a pattern adjacent a strip, arranging a plurality of superabrasive particles proximate the pattern, and securing at least some of the plurality of superabrasive particles to the strip. The material is configured to attract or secure the plurality of superabrasive particles. Some methods may include imparting like charges to each of a plurality of superabrasive particles, placing the plurality of superabrasive particles over a strip, and securing the superabrasive particles to the strip. In some methods, a first plurality of superabrasive particles may be placed in an array between a first strip and a second strip. A second plurality of superabrasive particles may be placed in an array between the second strip and a third strip. Methods of forming earth-boring rotary drill bits include forming an insert and securing the insert to a body of the bit.

    Abstract translation: 用于钻孔工具的成形刀片的方法包括提供邻近条带的图案中的材料,将多个超级磨料颗粒布置在靠近图案的位置,并将多个超级磨料颗粒中的至少一些固定到条带上。 该材料构造成吸引或固定多个超研磨颗粒。 一些方法可以包括向多个超研磨颗粒中的每一个施加相同的电荷,将多个超研磨颗粒放置在条上,以及将超研磨颗粒固定到带上。 在一些方法中,可以将第一组多个超级磨料颗粒放置在第一条带和第二条带之间的阵列中。 可以在第二条带和第三条带之间的阵列中放置第二多个超级磨料颗粒。 形成钻孔旋转钻头的方法包括形成插入件并将插入件固定到钻头的主体。

    METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS
    9.
    发明申请
    METHODS OF FORMING INSERTS AND EARTH-BORING TOOLS 审中-公开
    插入方法和插入工具

    公开(公告)号:WO2012006281A3

    公开(公告)日:2012-03-01

    申请号:PCT/US2011042952

    申请日:2011-07-05

    CPC classification number: E21B10/46 B24D99/005

    Abstract: Methods of forming inserts for earth-boring tools include providing a material in a pattern adjacent a strip, arranging a plurality of superabrasive particles proximate the pattern, and securing at least some of the plurality of superabrasive particles to the strip. The material is configured to attract or secure the plurality of superabrasive particles. Some methods may include imparting like charges to each of a plurality of superabrasive particles, placing the plurality of superabrasive particles over a strip, and securing the superabrasive particles to the strip. In some methods, a first plurality of superabrasive particles may be placed in an array between a first strip and a second strip. A second plurality of superabrasive particles may be placed in an array between the second strip and a third strip. Methods of forming earth-boring rotary drill bits include forming an insert and securing the insert to a body of the bit.

    Abstract translation: 形成用于钻地工具的插入件的方法包括提供邻近条带的图案的材料,在该图案附近布置多个超级磨料颗粒,以及将多个超级研磨颗粒中的至少一些固定到该条带。 该材料构造成吸引或固定多个超级磨料颗粒。 一些方法可以包括将相同的电荷赋予多个超研磨颗粒中的每一个,将多个超研磨颗粒放置在带上,并将超研磨颗粒固定到带上。 在一些方法中,第一多个超研磨颗粒可以放置在第一带和第二带之间的阵列中。 第二多个超研磨颗粒可以放置在第二带和第三带之间的阵列中。 形成钻地旋转钻头的方法包括形成插入件并将插入件固定到钻头的本体上。

    CASING AND LINER DRILLING BITS, CUTTING ELEMENTS THEREFOR, AND METHODS OF USE
    10.
    发明申请
    CASING AND LINER DRILLING BITS, CUTTING ELEMENTS THEREFOR, AND METHODS OF USE 审中-公开
    套管和衬砌钻头,切削元件和使用方法

    公开(公告)号:WO2005080742B1

    公开(公告)日:2005-10-27

    申请号:PCT/US2005004106

    申请日:2005-02-10

    Abstract: A casing bit, which may comprise a composite structure, for drilling a casing section into a subterranean formation, and which may include a portion configured to be drilled therethrough, is disclosed. Cutting elements and methods of use are disclosed. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element are disclosed. Differing abrasive material amount, characteristics, and size of cutting elements are disclosed. Telescoping casing sections and bits are disclosed. Aspects and embodiments are disclosed including: at least one gage section extending from the nose portion, at least one rotationally trailing groove formed in at least one of the plurality of blades, a movable blade, a leading face comprising superabrasive material, at least one of a drilling fluid nozzle and a sleeve, grooves for preferential failure, at least one rolling cone affixed to the nose portion, at least one sensor, discrete cutting element retention structures, and percussion inserts.

    Abstract translation: 公开了一种可包括复合结构的套管钻头,用于将套管部分钻入地下地层中,并且该套管钻头可包括被构造成穿过其中钻出的部分。 公开了切割元件和使用方法。 公开了粘合剂,焊料,电分离材料和钎焊粘附切割元件。 公开了不同研磨材料量,切割元件的特征和尺寸。 公开了伸缩套管部分和钻头。 公开了多个方面和实施例,包括:从鼻部延伸的至少一个量规部分,形成在多个刀片中的至少一个中的至少一个旋转尾随槽,可动刀片,包括超级磨料材料的引导面, 钻井液喷嘴和套管,用于优先失效的凹槽,固定在鼻部上的至少一个滚动锥体,至少一个传感器,离散的切割元件保持结构和冲击插入件。

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