公开(公告)号：US20180051520A1

公开(公告)日：2018-02-22

申请号：US15784293

申请日：2017-10-16

申请人： FIRST CORP INTERNATIONAL INC.

发明人： Sonny Beauchamp

IPC分类号： E21B10/55 ,  E21B10/60 ,  E21B10/43 ,  E21B3/00 ,  E21B10/42 ,  E21B10/54

CPC分类号： E21B10/55 ,  E21B3/00 ,  E21B10/43 ,  E21B10/602 ,  E21B2010/425 ,  E21B2010/545

摘要： A method of forming a hole in a hard ground structure including the step of obtaining a drill-bit with a turning axis having: a central portion and first and second axially spaced ends; and a plurality of protruding blades. Each blade has first and second ends, a first end portion, a second end portion, a middle portion, and a circumferentially facing leading portion. The circumferentially facing leading portion of each blade has at least one discrete hard cutter thereat. The method further includes the step of turning the drill-bit around its axis in a first direction so that the blades are advanced, circumferentially facing leading portion first, while pulling the drill-bit axially, with the first drill-bit end in a leading direction, through the hard ground structure to thereby cause the discrete cutters to cut the hard ground structure.

公开(公告)号：US09790749B2

公开(公告)日：2017-10-17

申请号：US15035717

申请日：2013-12-13

申请人： Halliburton Energy Services, Inc.

发明人： Shilin Chen

IPC分类号： E21B10/55 ,  E21B10/60 ,  E21B17/10 ,  E21B12/04 ,  E21B10/54

CPC分类号： E21B17/1092 ,  E21B10/55 ,  E21B10/60 ,  E21B12/04 ,  E21B17/1078 ,  E21B2010/545

摘要： In accordance with some embodiments, a downhole drilling tool comprises a bit body, a blade on an exterior portion of the bit body, and a gage pad on the blade. The gage pad includes a ball retainer and a ball located in the ball retainer such that an exposed portion of the ball is positioned to contact a wellbore and rotate in response to frictional engagement with the wellbore.

公开(公告)号：US20170292330A1

公开(公告)日：2017-10-12

申请号：US15477898

申请日：2017-04-03

申请人： Smith International, Inc.

发明人： Pusheng Zhang ,  Ramachandra Krishnamurthy ,  Hector Alba

IPC分类号： E21B10/55 ,  E21B10/567

CPC分类号： E21B10/55 ,  E21B10/567 ,  E21B2010/545

摘要： A bit has a bit body. A pocket is formed in a surface of the bit body. The pocket has an opening at the surface and is defined by a rear wall with a sidewall extending between the rear wall and the surface. The pocket includes a stress relief feature at a front end of the sidewall to reduce stress concentrations in the bit body at or near the pocket, a stress relief feature at a rear end of the sidewall to reduce stress concentrations in the bit body at or near the pocket, or stress relief features at both front and rear ends of the sidewall.

公开(公告)号：US20170266784A1

公开(公告)日：2017-09-21

申请号：US15514325

申请日：2015-09-25

申请人： DIAMOND INNOVATIONS, INC.

发明人： Kai ZHANG ,  Alexander HIRSCH ,  Hui ZHANG ,  Abhijit SURYAVANSHI

IPC分类号： B24D18/00 ,  B24D3/10 ,  B22F3/14 ,  C22C26/00 ,  B22F3/10 ,  E21B10/55 ,  E21B10/573 ,  B24D3/06 ,  B22F7/06

CPC分类号： B24D18/0009 ,  B22F3/1035 ,  B22F3/14 ,  B22F7/06 ,  B22F7/08 ,  B22F2005/001 ,  B22F2999/00 ,  B24D3/06 ,  B24D3/10 ,  C04B35/528 ,  C04B35/645 ,  C04B37/021 ,  C04B2235/425 ,  C04B2235/604 ,  C04B2237/36 ,  C04B2237/361 ,  C04B2237/363 ,  C04B2237/385 ,  C04B2237/401 ,  C04B2237/704 ,  C22C26/00 ,  C22C29/08 ,  C22C2026/006 ,  E21B10/55 ,  E21B10/5735 ,  E21B2010/545

摘要： A compact, a superabrasive compact and a method of making the compact and superabrasive compact are disclosed. A compact may include a plurality of carbide particles, a binder, and a species. The binder may be dispersed among the plurality of tungsten carbide particles. The species may be dispersed in the compact, wherein the binder has a melting point from about 600° C. to about 1350° C. at ambient pressure. A superabrasive compact may include a diamond table and a substrate. The diamond table may be attached to the substrate. The substrate may have a binder. The melting point of the binder is from about 600° C. to about 1350° C. at high pressure from about 30 kbar to about 100 kbar.

公开(公告)号：US09562398B2

公开(公告)日：2017-02-07

申请号：US13924239

申请日：2013-06-21

申请人： Sichuan Deep & Fast Oil Drilling Tools Co., Ltd.

发明人： Liang Zhang ,  Shu Li ,  Jialin Tian ,  Defa Zeng

IPC分类号： E21B10/46 ,  E21B10/567 ,  E21B10/00 ,  E21B10/50 ,  E21B10/54 ,  E21B10/56

CPC分类号： E21B10/46 ,  E21B10/00 ,  E21B10/50 ,  E21B10/5676 ,  E21B2010/545 ,  E21B2010/563

摘要： A modular cutting-teeth bit having controllable specific pressure for drilling includes: a module (1), a modular unit (2), a bit body (3), conventional cutting teeth (4) and a nozzle (5). According to mechanical performance of the rocks in the strata drilled and requirements of drilling well, a combination of shapes, sizes and numbers of the module and the modular unit is optimized; effective abrasion edge length of the cutting unit on a certain portion of the bit is controlled; and a constant specific pressure of the cutting unit of the bit during the drilling process is maintained.

摘要翻译： 具有可控钻孔特定压力的模块化切齿钻头包括：模块（1），模块单元（2），钻头体（3），常规切割齿（4）和喷嘴（5）。 根据钻井岩石的机械性能和钻井要求，优化了模块和模块单元的形状，尺寸和数量的组合; 切削单元在钻头的某一部分上的有效磨边长度被控制; 并且保持在钻孔过程中钻头的切割单元的恒定的比压。

公开(公告)号：US20150298209A1

公开(公告)日：2015-10-22

申请号：US14753595

申请日：2015-06-29

申请人： BAKER HUGHES INCORPORATED

发明人： Chaitanya K. Vempati ,  Suresh G. Patel

IPC分类号： B22D19/06 ,  E21B10/36 ,  B22D19/04 ,  B22D19/14 ,  B22D19/00

CPC分类号： B22D19/06 ,  B22D19/0081 ,  B22D19/04 ,  B22D19/14 ,  E21B10/36 ,  E21B10/43 ,  E21B10/56 ,  E21B2010/545

摘要： Methods of forming earth-boring tools may involve positioning a blade frame segment in a mold, the blade frame segment comprising cutting-element-attachment locations distributed over a face of the blade frame segment, the mold comprising a longitudinal axis. A first cutting element may be secured to the blade frame segment at a first cutting-element-attachment location of the cutting-element-attachment locations. A second cutting element may be secured to the blade frame segment at a second, different cutting-element-attachment location of the cutting-element-attachment locations. The blade frame segment may be integrated into a blade of a plurality of radially extending blades of an earth-boring tool by forming a body of the earth-boring tool, including the blade, around the blade frame segment.

摘要翻译： 形成钻孔工具的方法可以包括将刀片框架段定位在模具中，刀片框架段包括分布在刀片框架段的表面上的切割元件附接位置，模具包括纵向轴线。 第一切割元件可以在切割元件附接位置的第一切割元件附接位置处固定到刀片框架段。 第二切割元件可以在切割元件附接位置的第二不同的切割元件附接位置处固定到刀片框架段。 叶片框架段可以通过围绕叶片框架段形成包括叶片的钻孔工具的主体而整合到钻孔工具的多个径向延伸的叶片的叶片中。

公开(公告)号：US09103172B1

公开(公告)日：2015-08-11

申请号：US12495986

申请日：2009-07-01

申请人： Kenneth E. Bertagnolli ,  Michael A. Vail

发明人： Kenneth E. Bertagnolli ,  Michael A. Vail

IPC分类号： B24D3/02 ,  C09C1/68 ,  C09K3/14 ,  E21B10/567

CPC分类号： E21B10/5673 ,  B23B2226/315 ,  B24D3/06 ,  B32B9/00 ,  C01B32/25 ,  C04B35/52 ,  C04B35/6303 ,  C04B35/645 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3225 ,  C04B2235/3234 ,  C04B2235/3256 ,  C04B2235/3272 ,  C04B2235/3274 ,  C04B2235/3427 ,  C04B2235/3821 ,  C04B2235/3843 ,  C04B2235/421 ,  C04B2235/427 ,  C04B2235/44 ,  C04B2235/442 ,  C04B2235/448 ,  E21B10/55 ,  E21B10/567 ,  E21B10/5735 ,  E21B2010/545 ,  E21B2010/562 ,  Y10T428/30

摘要： Embodiments of the invention relate to thermally-stable polycrystalline diamond compacts (“PDCs”), and methods of fabricating such PDCs. In an embodiment, a PDC includes a substrate and a pre-sintered polycrystalline diamond (“PCD”) table bonded to the substrate. The pre-sintered PCD table includes bonded diamond grains defining a plurality of interstitial regions. The pre-sintered PCD table further including a first region remote from the substrate including a nonmetallic catalyst and a metallic catalyst each of which is disposed interstitially between the bonded diamond grains thereof, and a second region bonded to the substrate including a metallic-catalyst infiltrant disposed interstitially between the bonded diamond grains thereof. A nonplanar boundary is located between the first region and the second region.

摘要翻译： 本发明的实施方案涉及热稳定多晶金刚石压块（“PDC”），以及制造这种PDC的方法。 在一个实施方案中，PDC包括与基底结合的基底和预烧结多晶金刚石（“PCD”）台。 预烧结PCD台包括限定多个间隙区域的结合金刚石晶粒。 所述预烧结PCD台还包括远离所述基板的第一区域，所述第一区域包括非金属催化剂和金属催化剂，所述非金属催化剂和金属催化剂间隙地设置在其结合的金刚石晶粒之间，以及与所述基板结合的第二区域包括金属催化剂渗透剂 在它们的结合的金刚石晶粒之间间隙地设置。 非平面边界位于第一区域和第二区域之间。

公开(公告)号：US08807249B2

公开(公告)日：2014-08-19

申请号：US14038657

申请日：2013-09-26

申请人： Dover BMCS Acquisition Corporation

发明人： Russell Roy Myers ,  E. Sean Cox

IPC分类号： E21B10/567 ,  E21B10/573

CPC分类号： E21B10/573 ,  E21B10/55 ,  E21B10/56 ,  E21B10/58 ,  E21B10/633 ,  E21B2010/545 ,  E21B2010/624 ,  E21D20/00

摘要： A roof-bolt drill bit has a bit body that is rotatable about a central axis, a coupling pocket defined in the bit body, and at least one cutting element mounted to the bit body, the at least one cutting element having a non-cylindrical periphery. The at least one cutting element includes a cutting face, a cutting edge adjacent the cutting face, a back surface opposite the cutting face, and a side surface extending between the cutting edge and the back surface, at least a portion of the side surface of the at least one cutting element being bonded to a side surface of the coupling pocket. The roof-bolt drill bit includes a coupling projection extending from the at least one cutting element, the coupling projection being bonded to a coupling recess defined in the bit body.

摘要翻译： 屋顶螺栓钻头具有可围绕中心轴线旋转的钻头体，限定在钻头体中的联接凹槽以及安装到钻头体上的至少一个切割元件，所述至少一个切割元件具有非圆柱形 周边。 所述至少一个切割元件包括切割面，与切割面相邻的切割边缘，与切割面相对的后表面以及在切割边缘和背面之间延伸的侧表面，至少一部分侧切面 所述至少一个切割元件被结合到所述联接凹槽的侧表面。 所述屋顶螺栓钻头包括从所述至少一个切割元件延伸的联接突起，所述联接突起被结合到限定在所述钻头体中的联接凹槽。

公开(公告)号：US08499859B1

公开(公告)日：2013-08-06

申请号：US13645128

申请日：2012-10-04

申请人： US Synthetic Corporation

发明人： Craig H. Cooley ,  Jeffrey B. Lund ,  Jair J. Gonzalez

IPC分类号： E21B10/62 ,  E21B10/633

CPC分类号： E21B10/55 ,  E21B3/00 ,  E21B10/42 ,  E21B10/567 ,  E21B10/573 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633 ,  E21B2010/545

摘要： A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.

公开(公告)号：US08286735B1

公开(公告)日：2012-10-16

申请号：US13330471

申请日：2011-12-19

申请人： Craig H. Cooley ,  Jeffery B. Lund ,  Jair J. Gonzalez

发明人： Craig H. Cooley ,  Jeffery B. Lund ,  Jair J. Gonzalez

IPC分类号： E21B10/62 ,  E21B10/633

CPC分类号： E21B10/55 ,  E21B3/00 ,  E21B10/42 ,  E21B10/567 ,  E21B10/573 ,  E21B10/62 ,  E21B10/627 ,  E21B10/633 ,  E21B2010/545

摘要： A rotary drill bit is disclosed. The rotary drill bit may include a bit body, a cutting pocket defined in the bit body, and a cutting element rotatably coupled to the bit body. The cutting element may be positioned at least partially within the cutting pocket. The rotary drill bit may also include a rotation-inducing member adjacent to the cutting element for inducing rotation of the cutting element relative to the cutting pocket. The rotation-inducing member may include a resilient member or a vibrational member. The rotary drill bit may also include protrusions extending from an interior of the cutting pocket adjacent to an outer diameter of the cutting element. A method of drilling a formation is also disclosed.

摘要翻译： 公开了一种旋转钻头。 旋转钻头可以包括钻头体，限定在钻头体中的切削槽，以及可旋转地联接到钻头体的切削元件。 切割元件可以至少部分地定位在切割凹槽内。 旋转钻头还可以包括与切割元件相邻的旋转诱导构件，用于引导切割元件相对于切割凹槽的旋转。 旋转诱导构件可以包括弹性构件或振动构件。 旋转钻头还可以包括从切割凹槽的内部邻近切割元件的外径延伸的突起。 还公开了一种钻井地层的方法。