公开(公告)号：US09540884B2

公开(公告)日：2017-01-10

申请号：US14254473

申请日：2014-04-16

Applicant: Robert M. Welch ,  Eric E. McClain ,  L. Allen Sinor

Inventor： Robert M. Welch ,  Eric E. McClain ,  L. Allen Sinor

IPC: E21B10/56 ,  E21B10/43

CPC classification number: E21B10/56 ,  E21B10/43 ,  E21B2010/562

Abstract: A method of producing a drill bit, such as for drilling a well into an earth formation, includes forming a bit body having a plurality of blades. Each of the plurality of blades includes a forward facing face with respect to a direction of rotation of the bit. The forward facing face includes individual cutter pockets at least partially recessed into the forward facing face. The method also includes securing a cutting element at least partially within each of the individual cutter pockets. Each cutting element has an abrasion resistance. Each of the plurality of blades is formed of a blade material having an abrasion resistance that is less than the abrasion resistance of the cutting element.

Abstract translation: 一种生产钻头的方法，例如用于将井钻入地层中的方法，包括形成具有多个叶片的钻头体。 多个叶片中的每一个相对于钻头的旋转方向包括前向面。 面向前的面包括至少部分地凹入到前向面中的单个切割器凹口。 该方法还包括至少部分地将切割元件固定在每个单独的切割器凹穴内。 每个切割元件都具有耐磨性。 多个叶片中的每一个由具有小于切割元件的耐磨性的耐磨性的刀片材料形成。

公开(公告)号：US08146683B2

公开(公告)日：2012-04-03

申请号：US12200344

申请日：2008-08-28

Applicant: Eric E. McClain ,  John C. Thomas

Inventor： Eric E. McClain ,  John C. Thomas

IPC: E21B7/00

CPC classification number: E21B17/14 ,  E21B7/20 ,  E21B10/43 ,  E21B10/567

Abstract: A drilling assembly for drilling two or more casing sections into a subterranean formation includes a first casing bit and a second casing bit, each casing bit of different diameter affixed to a respective casing section of different diameter, at least two casing bits and the two or more casing sections arranged in a telescoping relationship. The second casing bit includes a bit body having a face on which two different types of cutting elements are disposed, the first type being cutting elements for drilling at least one subterranean formation and the second type being cutting elements for drilling through the first casing bit.

Abstract translation: 用于将两个或更多个套管部分钻入地层的钻井组件包括第一套管钻头和第二套管钻头，每个不同直径的套管钻头固定到不同直径的相应壳体部分，至少两个套管钻头和两个或两个 更多的套管部分以伸缩关系排列。 第二套筒钻头包括具有面的两个不同类型的切割元件的钻头体，第一类型是用于钻探至少一个地下地层的切割元件，而第二类型是用于钻穿第一壳钻头的切割元件。

公开(公告)号：US07900703B2

公开(公告)日：2011-03-08

申请号：US12624311

申请日：2009-11-23

Applicant: Lester I. Clark ,  John C. Thomas ,  Jeffrey B. Lund ,  Eric E. McClain

Inventor： Lester I. Clark ,  John C. Thomas ,  Jeffrey B. Lund ,  Eric E. McClain

IPC: E21B29/00

CPC classification number: E21B10/26 ,  E21B7/20 ,  E21B10/43 ,  E21B17/14

Abstract: A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose portion and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.

Abstract translation: 扩孔工具包括具有凹部中心的鼻部的管状体。 多个叶片限定了其间的垃圾槽，其在鼻部之间轴向延伸并且从管状体的外部向外逐渐变细。 叶片的旋转前缘从轴向前端承载多个切割元件。 叶片的选定表面和边缘承载碳化钨，其可以包括破碎的碳化钨。 鼻子的外壳被配置成确保从其中心线朝向管状体的侧壁排出。 还公开了一种钻出铰孔工具的方法。

公开(公告)号：US20100065282A1

公开(公告)日：2010-03-18

申请号：US12624311

申请日：2009-11-23

Applicant: Lester I. Clark ,  John C. Thomas ,  Jeffrey B. Lund ,  Eric E. McClain

Inventor： Lester I. Clark ,  John C. Thomas ,  Jeffrey B. Lund ,  Eric E. McClain

IPC: E21B29/00

CPC classification number: E21B10/26 ,  E21B7/20 ,  E21B10/43 ,  E21B17/14

Abstract: A reaming tool includes a tubular body having a nose portion with a concave center. A plurality of blades defining junk slots therebetween extend axially behind the nose and taper outwardly from the exterior of the tubular body. Rotationally leading edges of the blades carry a plurality of cutting elements from the axially leading ends. Selected surfaces and edges of the blades bear tungsten carbide, which may comprise crushed tungsten carbide. The shell of the nose is configured to ensure drillout from the centerline thereof toward the side wall of the tubular body. A method of drilling out a reaming tool is also disclosed.

Abstract translation: 扩孔工具包括具有凹部中心的鼻部的管状体。 在其间限定垃圾槽的多个叶片在鼻部之间轴向延伸并且从管状体的外部向外逐渐变细。 叶片的旋转前缘从轴向前端承载多个切割元件。 叶片的选定表面和边缘承载碳化钨，其可以包括破碎的碳化钨。 鼻子的外壳被配置成确保从其中心线朝向管状体的侧壁排出。 还公开了一种钻出铰孔工具的方法。

公开(公告)号：US20090107732A1

公开(公告)日：2009-04-30

申请号：US11932432

申请日：2007-10-31

Applicant: Eric E. McClain ,  Marcus R. Skeem

Inventor： Eric E. McClain ,  Marcus R. Skeem

IPC: E21B10/42

CPC classification number: E21B10/54 ,  E21B10/16 ,  E21B10/43

Abstract: A drill bit is provided that employs a plurality of discrete, post-like, abrasive, particulate-impregnated cutting structures extending upwardly from the bit face. The cutting structures may be disposed on abrasive, particulate-impregnated blades that also define a plurality of fluid passages on the bit face. One or more of the cutting structures may include outermost ends that exhibit a cross-sectional geometry that is elongated in a direction along a defined axis. The cutting structures may be oriented such that the defined axis is neither coplanar with, nor parallel to, an intended rotational path of the at least one discrete cutting structure during operation of the bit. In one embodiment, the cutting structure is oriented such that the defined axis is at an acute angle relative to a tangent of the intended rotational path for the associated cutting structure. Other or different features may include, for example, additional, differently configured cutting elements.

Abstract translation: 提供了一种钻头，其采用从钻头面向上延伸的多个离散的，类似后，磨料的颗粒浸渍的切割结构。 切割结构可以设置在研磨性颗粒浸渍的刀片上，刀片也在钻头面上限定多个流体通道。 一个或多个切割结构可以包括表现出沿着限定的轴线的方向伸长的横截面几何形状的最外端。 切割结构可以被定向成使得限定的轴既不与钻头的操作期间的至少一个离散切割结构的预期旋转路径共面，也不平行。 在一个实施例中，切割结构被定向成使得限定的轴线相对于相关切割结构的预期旋转路径的切线成锐角。 其他或不同的特征可以包括例如附加的不同构造的切割元件。

公开(公告)号：US08225887B2

公开(公告)日：2012-07-24

申请号：US13177874

申请日：2011-07-07

Applicant: Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

Inventor： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

IPC: E21B17/14 ,  E21B10/26 ,  E21B7/20

CPC classification number: E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

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. Cutting elements and methods of use may be included. Adhesive, solder, electrically disbonding material, and braze affixation of a cutting element may be included. Differing abrasive material amount, characteristics, and size of cutting elements may be included. Telescoping casing sections and bits may be included. Embodiments may include: 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: 套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成通过其钻孔的部分。 可以包括切割元件和使用方法。 可以包括粘合剂，焊料，电剥离材料和切割元件的钎焊固定。 可以包括不同的研磨材料量，特性和切割元件的尺寸。 可以包括伸缩套管段和位。 实施例可以包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可移动刀片，包括超级磨料的前端面，钻井液中的至少一个 喷嘴和套筒，用于优先破坏的凹槽，固定到鼻部的至少一个滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

公开(公告)号：US20110259606A1

公开(公告)日：2011-10-27

申请号：US13178144

申请日：2011-07-07

Applicant: Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

Inventor： Jack T. Oldham ,  L. Allen Sinor ,  Eric E. McClain ,  Robert A. Laing ,  Evan C. Turner ,  Mark W. Dykstra ,  Eric C. Sullivan

IPC: E21B17/14 ,  E21B19/16

CPC classification number: E21B10/55 ,  E21B7/20 ,  E21B10/08 ,  E21B10/26 ,  E21B10/42 ,  E21B10/567 ,  E21B17/07 ,  E21B17/14

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 a 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: 公开了一种套管钻头，其可以包括复合结构，用于将套管部分钻入地下地层中，并且其可以包括构造成穿过其中的部分。 公开了切割元件和使用方法。 公开了粘合剂，焊料，电解剥离材料和切割元件的钎焊固定。 公开了不同的研磨材料量，特性和切割元件的尺寸。 公开了伸缩套管段和钻头。 公开的方面和实施例包括：从鼻部延伸的至少一个量具部分，形成在多个叶片中的至少一个叶片中的至少一个旋转拖尾槽，可动刀片，包括超级磨料的前端面，至少一个 钻井液喷嘴和套筒，用于优先失效的槽，至少一个固定到鼻部的滚动锥体，至少一个传感器，离散切割元件保持结构和冲击插入件。

公开(公告)号：US08020641B2

公开(公告)日：2011-09-20

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

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.

Abstract translation: 一种优化钻头设计的方法和用于将井钻入包括钻头体的地层中的优化钻头; 围绕钻头体间隔开的多个刀片，每个刀片具有弯曲的外边缘和前表面; 沿着每个叶片的外边缘凹入到所述面中的第一排刀槽; 第二组切割器凹槽凹入到从第一排偏移的每个叶片的表面中; 和多个切割元件，每个切割元件被钎焊到不同的一个刀具凹口中。

公开(公告)号：US07954571B2

公开(公告)日：2011-06-07

申请号：US12030110

申请日：2008-02-12

Applicant: Eric E. McClain ,  Michael L. Doster ,  John C. Thomas ,  Matthew R. Isbell ,  Jarod DeGeorge ,  Chad T. Jurica

Inventor： Eric E. McClain ,  Michael L. Doster ,  John C. Thomas ,  Matthew R. Isbell ,  Jarod DeGeorge ,  Chad T. Jurica

IPC: E21B10/43

CPC classification number: E21B10/43 ,  E21B10/485 ,  E21B29/06

Abstract: A drill bit includes a bit body having a face on which two different types of cutters are disposed, the first type being cutting elements suitable for drilling at least one subterranean formation and the second type being at least one of an abrasive cutting structure and an abrasive cutting element suitable for drilling through a casing shoe, reamer shoe, casing bit, casing or liner string and cementing equipment or other components, as well as cement. Methods of forming earth-boring tools are also disclosed.

Abstract translation: 钻头包括具有一个面的钻头体，其上设有两种不同类型的切割器，第一类型是适于钻取至少一个地下地层的切割元件，第二类型是磨料切割结构和研磨剂中的至少一种 适用于通过套管，扩孔器，套管钻头，套管或衬管线​​以及固井设备或其他部件以及水泥钻孔的切割元件。 还公开了形成钻孔工具的方法。

公开(公告)号：US07748475B2

公开(公告)日：2010-07-06

申请号：US11928956

申请日：2007-10-30

Applicant: Eric E. McClain ,  Jack T. Oldham

Inventor： Eric E. McClain ,  Jack T. Oldham

IPC: E21B10/43

CPC classification number: E21B29/06 ,  E21B10/43 ,  E21B10/56 ,  E21B10/567 ,  E21B17/14

Abstract: A drill bit includes a bit body having a face on which two different types of cutting elements are disposed, the first type being cutting elements for drilling at least one subterranean formation and the second type being cutting elements for drilling through a casing bit disposed at an end of a casing or liner string and cementing equipment or other components. The second type of cutting elements exhibits a relatively greater exposure than the first type of cutting elements, so as to engage the interior of the casing bit and, if present, cementing equipment components and cement to drill therethrough, after which the second type of cutting elements quickly wears upon engagement with the subterranean formation material exterior to the casing bit, and the first type of cutting elements continues to drill the subterranean formation.

Abstract translation: 钻头包括具有面的两个不同类型的切割元件的钻头体，第一类型是用于钻取至少一个地下地层的切割元件，第二类型是用于通过设置在 套管或衬管柱的末端以及固井设备或其他部件。 第二类型的切割元件比第一类型的切割元件具有相对更大的曝光，以便接合套筒钻头的内部，如果存在的话，将固井设备部件和水泥钻入其中，之后进行第二种切割 元件在与套管钻头外部的地层形成材料接合时快速磨损，并且第一类型的切削元件继续钻入地层。