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公开(公告)号：US09988846B2
公开(公告)日：2018-06-05
申请号：US14963983
申请日：2015-12-09
发明人： Israel Gonzalez
CPC分类号： E21B7/064 , E21B10/42 , E21B10/43 , E21B17/1092
摘要： A drilling assembly comprises a bit body having a central axis and a blade extending radially outward from the bit body. The blade is defined by a leading edge and a trailing edge. A gauge surface extends from the leading edge to a surface break and may be disposed at a gauge diameter from the central axis. A recessed surface extends from the surface break to the trailing edge. The recessed surface may be configured to avoid contact between the trailing edge and the wellbore wall.
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公开(公告)号：US09976357B2
公开(公告)日：2018-05-22
申请号：US14824453
申请日：2015-08-12
CPC分类号： E21B10/602 , E21B10/42 , E21B10/61 , E21B2010/607
摘要： A drill bit comprises a bit body having a body face. A plurality of fixed blades extends from the bit body. Each of the plurality of fixed blades has a leading face and a trailing face. A plurality of nozzles is disposed on the body face to flow drilling fluid out of the bit body. A plurality of flow guides direct a portion of the drilling fluid away from the bit body. Each of the plurality of flow guides extends longitudinally from the body face, and along the leading face of one of the plurality of fixed blades.
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公开(公告)号：US09752411B2
公开(公告)日：2017-09-05
申请号：US14341634
申请日：2014-07-25
发明人： Mark Adam
CPC分类号： E21B34/14 , E21B2034/002 , E21B2034/007
摘要： A downhole activation assembly includes a housing that is operatively connectable to a downhole tool and that has a passage for flow of fluid therethrough. An indexing assembly is positionable in the housing, includes a multiple position indexer and an indexing tube, and is operatively connectable to the downhole tool. A sleeve valve includes a fixed sleeve portion and a movable sleeve portion that is positionable in the housing passage and defines a ball passage therethrough. A valve seat in the sleeve valve is configured to receive the ball such that the flow of the fluid is selectively restricted through the ball passage. The movable sleeve is engagable with the indexing tube to selectively shift the indexer between multiple positions whereby the downhole tool is selectively activatable.
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公开(公告)号：US09410379B2
公开(公告)日：2016-08-09
申请号：US13728435
申请日：2012-12-27
发明人： Roger H. Silva
CPC分类号： E21B10/26 , E21B7/00 , E21B10/30 , E21B17/1078
摘要： A tool for reaming a borehole includes a tubular body having a central axis, an uphole reamer section mounted to the body, and a downhole reamer section mounted to the body. Each reamer section includes a first blade extending radially from the body. Each blade has an uphole end, a downhole end opposite the uphole end, and a formation-facing surface. The formation facing surface of the first blade of the uphole reamer section is disposed at a radius R1 that increases moving from the uphole end to the downhole end. The formation facing surface of the first blade of the downhole reamer section is disposed at a radius R1′ that decreases moving from the uphole end to the downhole end. The tool also includes a cutter element mounted to the formation facing surface of the first blade of each reamer section.
摘要翻译： 用于铰孔钻孔的工具包括具有中心轴线的管状体，安装到主体上的钻孔扩孔器部分和安装到主体上的井下铰刀部分。 每个铰刀部分包括从主体径向延伸的第一叶片。 每个叶片具有井眼端，与井眼端相对的井下端和面向地层的表面。 钻孔铰刀部分的第一叶片的形成面的表面设置在半径R1处，该半径R1增加从井上端到井下端的移动。 井下铰刀部分的第一叶片的形成面向表面设置在半径R1'，该半径R1'减小从井上端到井下端的移动。 该工具还包括安装到每个铰刀部分的第一叶片的面向表面的切割器元件。
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公开(公告)号：US20160168914A1
公开(公告)日：2016-06-16
申请号：US14963983
申请日：2015-12-09
发明人： Israel Gonzalez
CPC分类号： E21B7/064 , E21B10/42 , E21B10/43 , E21B17/1092
摘要： A drilling assembly comprises a bit body having a central axis and a blade extending radially outward from the bit body. The blade is defined by a leading edge and a trailing edge. A gauge surface extends from the leading edge to a surface break and may be disposed at a gauge diameter from the central axis. A recessed surface extends from the surface break to the trailing edge. The recessed surface may be configured to avoid contact between the trailing edge and the wellbore wall.
摘要翻译： 钻井组件包括具有中心轴线的钻头体和从钻头体径向向外延伸的叶片。 叶片由前缘和后缘限定。 表面从前缘延伸到表面断裂，并且可以从中心轴线设置在规格直径处。 凹陷表面从表面断裂延伸到后缘。 凹入的表面可以构造成避免后缘和井筒壁之间的接触。
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公开(公告)号：US09249628B2
公开(公告)日：2016-02-02
申请号：US13679346
申请日：2012-11-16
发明人： Thang Vo , Tjandra Sukendro
摘要： A rolling cone drill bit for drilling a borehole in earthen formations includes a bit body having a bit axis. In addition, the rolling cone drill bit includes a rolling cone cutter mounted on the bit body and having a cone axis of rotation. The cone cutter includes a cone body, a plurality of teeth arranged in a first inner row, and a plurality of inserts. Each insert is disposed within one tooth in the first inner row.
摘要翻译： 一种用于在土层中钻孔的滚动钻头钻头包括具有钻头轴线的钻头体。 此外，滚动锥钻头包括安装在钻头体上并具有锥形旋转轴线的滚动圆锥切割机。 锥形切割器包括锥体，布置在第一内排中的多个齿和多个插入件。 每个插入件设置在第一内排中的一个齿内。
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87.发明授权Preparation of nanocrystalline diamond coated diamond particles and applications thereof 有权纳米金刚石涂层金刚石颗粒的制备及其应用公开(公告)号：US09193037B2
公开(公告)日：2015-11-24
申请号：US13742451
申请日：2013-01-16
发明人： Michael S. Nixon , Guodong Zhan , Michael D. Hughes , Anil Kumar
IPC分类号： B24D3/00 , B24D3/02 , B24D11/00 , B24D18/00 , C09K3/14 , B24D3/04 , C04B35/52 , C04B35/624 , C04B35/626 , C04B35/628 , C22C26/00 , B82Y30/00
CPC分类号： B24D3/04 , B82Y30/00 , C04B35/52 , C04B35/624 , C04B35/6263 , C04B35/6264 , C04B35/62655 , C04B35/62802 , C04B35/62839 , C04B35/62886 , C04B35/62892 , C04B2235/402 , C04B2235/404 , C04B2235/405 , C04B2235/42 , C04B2235/421 , C04B2235/427 , C04B2235/5436 , C04B2235/5454 , C04B2235/5472 , C22C26/00
摘要： A method of making a polycrystalline diamond cutter element includes forming a blend, comprising a first particle size of polycrystalline diamond particles and a second particle size of polycrystalline diamond particles; forming a suspension of nanocrystalline diamond particles suspended in a solvent; and mixing the blend into the suspension to form a polycrystalline diamond mixture comprising nanocrystalline diamond coated polycrystalline diamond particles. The mixture is sintered with a substrate at high temperature and high pressure to form the polycrystalline diamond cutter element.
摘要翻译： 一种制造多晶金刚石切割器元件的方法包括形成共混物，其包含第一粒度的多晶金刚石颗粒和第二粒径的多晶金刚石颗粒; 形成悬浮在溶剂中的纳米晶金刚石颗粒的悬浮液; 并将共混物混合到悬浮液中以形成包含纳米晶体金刚石涂覆的多晶金刚石颗粒的多晶金刚石混合物。 该混合物在高温高压下与基材烧结以形成多晶金刚石切割元件。
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公开(公告)号：US08875812B2
公开(公告)日：2014-11-04
申请号：US13189309
申请日：2011-07-22
IPC分类号： E21B10/46 , E21B10/573 , B22F7/08 , C22C26/00 , B22F5/00
CPC分类号： E21B10/5735 , B22F7/08 , B22F2005/001 , C22C26/00
摘要： A polycrystalline diamond cutting (PDC) element of a drill bit of a downhole drilling tool is provided. The PDC element having a substrate, a diamond table and at least one pattern. The diamond table has an initial cutting edge along a periphery thereof. The pattern integrally formed within the diamond table. The pattern(s) defining at least one discontinuity about the diamond table that, in operation, selectively breaks away upon impact to create new cutting edges in the diamond table whereby a sharp cutting edge is continuously exposed to a material being cut.
摘要翻译： 提供井下钻具的钻头的多晶金刚石切割（PDC）元件。 PDC元件具有基底，金刚石台和至少一种图案。 钻石台沿着其周边具有初始切削刃。 该图案整体形成在钻石桌内。 限定关于钻石台的至少一个不连续的图案，其在操作中在冲击时选择性地分离以在金刚石台中产生新的切割边缘，由此锋利的切割刃连续地暴露于被切割的材料。
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89.发明申请公开(公告)号：US20140144709A1
公开(公告)日：2014-05-29
申请号：US13685348
申请日：2012-11-26
发明人： Thang Vo , Tjandra Sukendro
CPC分类号： E21B10/16 , B24D18/0009 , E21B10/52 , E21B10/56
摘要： An insert for a rolling cone drill bit includes a base portion having a central axis. The base portion is configured to be seated in a mating socket in a cone cutter of the rolling cone drill bit. In addition, the insert includes a cutting portion extending from the base portion. The base portion has a radially outer surface including a non-cylindrical axial retention feature configured to prevent the insert from moving axially out of the mating socket or a non-cylindrical torque holding feature configured to prevent the insert from rotating relative to the cone cutter.
摘要翻译： 用于滚动锥钻头的刀片包括具有中心轴线的基部。 基座部分被配置成坐在滚动锥钻头的锥形切割器中的配合插座中。 此外，插入件包括从基部延伸的切割部。 基部具有包括非圆柱形轴向保持特征的径向外表面，该非圆柱形轴向保持特征构造成防止插入件轴向移动离开配合插座，或者非圆柱形扭矩保持特征构造成防止插入件相对于锥形切割器旋转。
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公开(公告)号：US08733475B2
公开(公告)日：2014-05-27
申请号：US13016332
申请日：2011-01-28
申请人： Thang Vo , Tom Scott Roberts , Craig Ivie , Douglas Caraway
发明人： Thang Vo , Tom Scott Roberts , Craig Ivie , Douglas Caraway
IPC分类号： E21B10/08
摘要： Disclosed is a rolling cone drill bit with inner row cutting teeth having portions shielded with an erosion-resistant material that differs in material properties from the tooth's core portion that is more impact resistant. The tooth includes shielding on at least a portion of the upstream end and along portions of the flanking surfaces. It includes shield-free portions on the flanks between the root and the tooth crest. Most of the tooth's perimeter is made of the core material and is free of shielding. Gage row teeth may be angled and form a channel to direct drilling fluid from the gage region of the borehole to locations where the inner row teeth are generating most cuttings. Nozzles are provided with non-uniform orientations.
摘要翻译： 公开了一种具有内排切割齿的滚动圆锥钻头，其具有用抗侵蚀材料屏蔽的部分，其材料特性与具有更耐冲击性的齿的芯部分不同。 所述牙齿包括在所述上游端的至少一部分和所述侧面的部分上的屏蔽。 它包括在根部和齿顶之间的侧面上的无屏蔽部分。 牙齿的大部分周边由芯材制成，不受屏蔽。 计量排齿可以成角度并且形成通道，以将钻井液从钻孔的测量区域引导到内排齿产生大多数切屑的位置。 喷嘴具有不均匀的方向。
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