公开(公告)号：US09359828B2

公开(公告)日：2016-06-07

申请号：US13794187

申请日：2013-03-11

Applicant: Baker Hughes Incorporated

Inventor： Danny E. Scott

IPC: E21B10/46 ,  E21B10/573 ,  E21B10/00

CPC classification number: E21B10/573 ,  E21B10/006

Abstract: Cutting elements for earth-boring tools comprise a substrate including at least one material selected from the group consisting of CoCr, CoCrMo, CoCrW, and Ti. A polycrystalline superabrasive material may be attached to the substrate. Earth-boring tools comprise a body. At least one cutting element is attached to the body. The at least one cutting element comprises a substrate including at least one material selected from the group consisting of CoCr, CoCrMo, CoCrW, and Ti. A polycrystalline superabrasive material may be attached to the substrate. Methods of forming cutting elements for earth-boring tools comprise disposing a substrate including at least one material selected from the group consisting of CoCr, CoCrMo, CoCrW, and Ti in a container. Particles of superabrasive material may be disposed in the container. The particles of superabrasive material may be sintered with the substrate in the container to form a polycrystalline superabrasive material attached to the substrate.

Abstract translation: 用于钻孔工具的切割元件包括包括选自CoCr，CoCrMo，CoCrW和Ti中的至少一种材料的基板。 多晶超研磨材料可以附着到基底上。 钻孔工具包括一个主体。 至少一个切割元件附接到主体。 所述至少一个切割元件包括包含选自CoCr，CoCrMo，CoCrW和Ti中的至少一种材料的基材。 多晶超研磨材料可以附着到基底上。 形成钻孔工具的切削元件的方法包括在容器中设置包括选自CoCr，CoCrMo，CoCrW和Ti中的至少一种材料的基材。 超磨料材料的颗粒可以设置在容器中。 超研磨材料的颗粒可以与容器中的基材一起烧结以形成附着在基材上的多晶超级磨料。

公开(公告)号：US20110315448A1

公开(公告)日：2011-12-29

申请号：US13070524

申请日：2011-03-24

Applicant: Calvin J. Stowe II ,  Andrew D. Ponder

Inventor： Calvin J. Stowe II ,  Andrew D. Ponder

IPC: E21B7/00 ,  B24B1/00 ,  E21B10/00

CPC classification number: B24D99/005 ,  E21B10/006 ,  E21B10/54 ,  E21B29/002

Abstract: Cutting elements for downhole cutting tools comprise a top surface having a cutting surface portion and a cutting profile disposed across the top surface. The cutting elements comprise first and second longitudinal side surfaces and first and second lateral side surfaces, each having a respective cross-section. The cutting profile can be disposed on the cutting surface either asymmetrically or symmetrically. Asymmetrical disposition permits two cutting elements to be arranged facing each other to cover a center point of a cutting tool. The cutting edge of asymmetrical or symmetrically disposed cutting profiles can have a shape that facilitates self-sharpening during cutting.

Abstract translation: 用于井下切割工具的切割元件包括具有切割表面部分和跨越顶表面设置的切割轮廓的顶表面。 切割元件包括第一和第二纵向侧表面以及分别具有相应横截面的第一和第二横向侧表面。 切割轮廓可以不对称地或对称地设置在切割表面上。 不对称配置允许两个切割元件相对布置以覆盖切割工具的中心点。 不对称或对称设置的切割轮廓的切割边缘可以具有在切割期间有助于自锐化的形状。

公开(公告)号：US20100108402A1

公开(公告)日：2010-05-06

申请号：US12262690

申请日：2008-10-31

Applicant: Andrew D. Ponder ,  Calvin J. Stowe, II

Inventor： Andrew D. Ponder ,  Calvin J. Stowe, II

IPC: E21B10/55 ,  E21B10/42

CPC classification number: E21B10/006

Abstract: A downhole cutting tool includes, a body, a first contoured cutting element in operable communication with the body, and at least one contingency contoured cutting element in operable communication with the first contoured cutting element and the body. A contour of the at least one contingency contoured cutting element substantially matches a contour of the first contoured cutting element, and the at least one contingency contoured cutting element is maintainable in reserve and positioned to substitute for the first contoured cutting element if the first contoured cutting element becomes detached.

Abstract translation: 井下切割工具包括主体，与主体可操作地连通的第一轮廓切割元件以及与第一轮廓切割元件和主体可操作地连通的至少一个意外轮廓切割元件。 所述至少一个偶然轮廓切割元件的轮廓基本上匹配所述第一轮廓切割元件的轮廓，并且所述至少一个应急轮廓切割元件可保留地保持并定位成代替所述第一轮廓切割元件，如果所述第一轮廓切割 元素分离。

公开(公告)号：US20100089664A1

公开(公告)日：2010-04-15

申请号：US12250445

申请日：2008-10-13

Applicant: Robert M. WELCH ,  Eric E. McCLAIN ,  L. Allen SINOR

Inventor： Robert M. WELCH ,  Eric E. McCLAIN ,  L. Allen SINOR

IPC: E21B10/43 ,  B21K5/04 ,  E21B10/46

CPC classification number: E21B10/43 ,  B22F2005/001 ,  B22F2998/00 ,  C22C2204/00 ,  E21B10/006 ,  C22C26/00 ,  C22C29/06

Abstract: A method of optimizing drill bit design and an optimized drill bit for drilling a well into an earth formation comprising a bit body; a number of blades spaced around the bit body, each blade having a curved outer edge and a forward face; a first row of cutter pockets recessed into the face along the outer edge of each blade; a second group of cutter pockets recessed into the face of each blade offset from the first row; and a plurality of cutting elements, each cutting element being brazed into a different one of the cutter pockets.

公开(公告)号：US07152701B2

公开(公告)日：2006-12-26

申请号：US10920718

申请日：2004-08-17

Applicant: Richard Butland ,  John J. Herman ,  Ronald Birne-Browne ,  Per Nese ,  Louis Loiselle ,  J. Daniel Belnap

Inventor： Richard Butland ,  John J. Herman ,  Ronald Birne-Browne ,  Per Nese ,  Louis Loiselle ,  J. Daniel Belnap

IPC: E21B10/08

CPC classification number: E21B10/5676 ,  E21B10/006 ,  E21B10/16 ,  E21B10/52

Abstract: A roller cone drill bit includes a bit body adapted to be coupled to a drill string, a bearing journal depending from the bit body, and a single roller cone rotatably attached to the bearing journal. The single roller cone has a plurality of cutting elements, where at least one of the plurality of cutting elements is formed of an inner region that is at least partially surrounded by an outer region, where the inner region is more abrasive resistant than the outer region. Such an arrangement in a single roller cone bit allows the at least one cutting element to be “self-sharpening.”

Abstract translation: 滚子锥形钻头包括适于联接到钻柱的钻头体，从钻头体悬垂的轴承轴颈和可旋转地附接到轴承轴颈的单个滚子圆锥体。 单个辊筒具有多个切割元件，其中多个切割元件中的至少一个切割元件由至少部分地被外部区域包围的内部区域形成，其中内部区域比外部区域更具有耐磨性 。 在单个辊锥头中的这种布置允许至少一个切割元件“自锐化”。

公开(公告)号：US5799741A

公开(公告)日：1998-09-01

申请号：US606918

申请日：1996-02-26

Applicant: Yuriy Kosobrodov ,  Vincent Jue

Inventor： Yuriy Kosobrodov ,  Vincent Jue

IPC: E21B10/00 ,  E21B10/52 ,  E21C35/183 ,  E21C35/197 ,  E21B10/16 ,  E21C35/18

CPC classification number: E21B10/006 ,  E21B10/52 ,  E21C35/183 ,  E21C35/197

Abstract: A cutting, self-rotating, and self-sharpening tool has a rotatable cutting element, generally circular, which is mounted and displaced so that cutting element has an attack angle between 90.degree. and 120.degree., and a skew angle between 5.degree. and 40.degree.. The cutting element has a convex front face and relief and rake angles that vary along the perimeter of the cutting edge.

Abstract translation: 切割，自转和自磨刀具具有可旋转切割元件，大体为圆形，其安装和移位，使得切割元件具有90°至120°之间的倾角，倾斜角度在5°至40°之间 DEG。 切割元件具有凸起的前表面，并且沿着切割边缘的周边变化的浮雕和前角。

公开(公告)号：US5615747A

公开(公告)日：1997-04-01

申请号：US664791

申请日：1996-06-17

Applicant: William B. Vail, III

Inventor： William B. Vail, III

IPC: E21B10/00 ,  E21B10/46

CPC classification number: E21B10/006 ,  E21B10/46

Abstract: A monolithic long lasting rotary drill bit for drilling a hole into a geological formation having at least one hardened rod which has a length of at least three times its diameter composed of hard material such as tungsten carbide that is cast into a relatively soft steel matrix material to make a rotary drill bit that compensates for wear on the bottom of the drill bit and that also compensates for lateral wear of the drill bit using passive, self-actuating mechanisms, triggered by bit wear to drill relatively constant diameter holes.

Abstract translation: 一种整体式持久的旋转钻头，用于在地质层中钻孔，所述旋转钻头具有至少一个硬化棒，该硬化棒的直径至少为其硬质材料（例如碳化钨）的三倍，所述硬质材料被铸成相对较软的钢基体材料 以制造用于补偿钻头底部的磨损的旋转钻头，并且还利用被钻头磨损触发的被动的自动致动机构来补偿钻头的横向磨损以钻出相对恒定直径的孔。

公开(公告)号：US4234048A

公开(公告)日：1980-11-18

申请号：US914449

申请日：1978-06-12

Applicant: David S. Rowley

Inventor： David S. Rowley

IPC: E21B10/00 ,  E21B10/04 ,  E21B10/46

CPC classification number: E21B10/04 ,  E21B10/006 ,  E21B10/46

Abstract: A diamond drill bit for drilling bore holes in earth formations having a body connectible to a drilling string, and provided with a matrix portion of hard metals in which diamonds are surface set at the outer gage portion and adjacent to the bit axis, the hard metal matrix having preformed grooves in which preformed diamond impregnated segments are inserted, which are a mixture of diamonds and hard metals, and secured to the matrix portion by brazing material. During bit rotation in the bore hole, the segments cut the major portion of the hole, the diamonds being dispersed throughout the mass of each segment for selective release from the segment as the diamonds become damaged and lost, thereby exposing new diamonds in the segment at a controlled rate, and thereby producing continual resharpening of the segments. As a result, the drilling rate of the bit is increased, as well as the length of hole drilled.

Abstract translation: 一种用于在地层中钻孔的金刚石钻头，其具有可连接到钻柱的主体，并且设置有金刚石的矩阵部分，其中金刚石表面设置在外表面部分并且与钻头轴线相邻，硬金属 基体具有预成形的凹槽，其中插入预成型的金刚石浸渍的段，其是金刚石和硬金属的混合物，并且通过钎焊材料固定到基体部分。 在钻孔中的钻头旋转期间，切割孔的主要部分，金刚石分散在每个段的整个质量块中，以在钻石被损坏和损失时从段中选择性地释放，从而在段中暴露新的钻石 受控率，从而产生段的持续重新锐化。 因此，钻头的钻孔速度以及钻孔的长度增加。

公开(公告)号：US4128136A

公开(公告)日：1978-12-05

申请号：US859072

申请日：1977-12-09

Applicant: Robert E. Generoux

Inventor： Robert E. Generoux

IPC: B28D1/04 ,  E21B10/00 ,  E21B10/48 ,  E21B9/36

CPC classification number: E21B10/006 ,  B28D1/041 ,  E21B10/48

Abstract: A diamond drill coring bit having an annular crown and inner and outer concentric side surfaces. The crown is formed from a number of radially extending composite segments spaced apart circumferentially by a circumferential spacer material, all integrally bonded together. Each composite segment consists of a number of diamond impregnated segments spaced radially from each other by a radial spacer material. The diamond impregnated segments have greater abrasion resistance than that of the radial spacer material such that the radial spacer material will wear at a controlled rate greater than that of the diamond impregnated segments. The radial spacer material has greater abrasion resistance than that of the circumferential spacer material such that the circumferential spacer material will wear at a controlled rate greater than that of the radial spacer material but not so great as to prematurely expose the composite segments. The circumferential spacer material has good thermal conductivity to conduct heat from the composite segments, and substantial ductility to absorb drilling shocks.

Abstract translation: 金刚石钻头取芯钻头，具有环形冠和内外侧同心侧面。 冠由多个径向延伸的复合段形成，圆周间隔材料沿周向隔开，全部整体结合在一起。 每个复合片段由多个金刚石浸渍片段组成，这些片段通过径向间隔物材料彼此径向间隔开。 金刚石浸渍段具有比径向间隔物材料更高的耐磨性，使得径向间隔物材料以比金刚石浸渍段更受控制的速率磨损。 径向间隔物材料具有比周向间隔物材料更高的耐磨性，使得圆周间隔物材料以比径向间隔物材料大的受控速率磨损，但不会过大地暴露复合材料段。 圆周间隔材料具有良好的导热性，以便从复合材料段传导热量，并具有显着延展性以吸收钻井冲击。

公开(公告)号：US3295617A

公开(公告)日：1967-01-03

申请号：US37391164

申请日：1964-06-10

Applicant: IMAGINEERING INC

Inventor： WILLIS DONALD M

IPC: E21B10/00

CPC classification number: E21B10/006