公开(公告)号：US20110168448A9

公开(公告)日：2011-07-14

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: E21B10/26

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

Abstract: The drilling of a casing bit and any other equipment in the casing with another casing bit where at least two casing bits of different diameter and having associated casing sections may be assembled to form a drilling assembly for drilling subterranean formations, the at least two casing bits and casing sections are arranged in a telescoping relationship.

Abstract translation: 套管钻头和壳体中的任何其他设备用另一个套管钻头钻孔，其中可以组装至少两个不同直径的壳体钻头并具有相关联的壳体部分以形成用于钻探地层的钻井组件，所述至少两个壳体钻头 并且套管部分以伸缩关系布置。

公开(公告)号：US07861809B2

公开(公告)日：2011-01-04

申请号：US12019814

申请日：2008-01-25

Applicant: David Gavia ,  Ryan J. Hanford ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Eric E. McClain ,  Michael L. Doster

Inventor： David Gavia ,  Ryan J. Hanford ,  Lane E. Snell ,  Jason E. Hoines ,  Matthew R. Isbell ,  Eric E. McClain ,  Michael L. Doster

IPC: E21B10/43

CPC classification number: E21B10/55 ,  E21B10/43

Abstract: A rotary drag bit includes a primary cutter row comprising at least one primary cutter and a multiple backup cutter group. The multiple backup cutter group comprises a first and second trailing cutter row, each comprising at least one cutter positioned to follow the at least one primary cutter. The rotary drag bit life is extended by the multiple backup cutter groups making the bit more durable and extending the life of the cutters. Further, the cutters of the multiple backup cutter group are configured to selectively engage a subterranean formation material being drilled, providing improved bit life and reduced stress upon the cutters. Other embodiments of rotary drag bits are provided.

Abstract translation: 旋转牵引钻头包括主切割器行，其包括至少一个主切割器和多个备用切割器组。 多个备用切割器组包括第一和第二拖尾切割器排，每个包括至少一个定位成跟随至少一个主切割器的切割器。 旋转拖曳钻头寿命由多个支撑刀具组延长，使刀头更加耐用，延长刀具的使用寿命。 此外，多支撑切割器组的切割器构造成选择性地接合正被钻孔的地下地层材料，从而提供改善的钻头寿命并减小刀具上的应力。 提供旋转阻力钻头的其他实施例。

公开(公告)号：US20100147596A1

公开(公告)日：2010-06-17

申请号：US12336241

申请日：2008-12-16

Applicant: Eric E. McClain

Inventor： Eric E. McClain

IPC: E21B10/60 ,  E21B10/00 ,  E21B10/62

CPC classification number: E21B10/61

Abstract: A drillable bit nozzle assembly can be used on a casing drilling bit and features a support housing preferably of the same material as the bit crown. The housing is preferably attached by welding and contains a groove for a seal and internal threads for an insert retainer. A landing shoulder for the hardened inserts allows different sizes to be inserted in the housing and retained by a hardened or carbide ring holder that engages the internal threads. The insert and the retainer are sufficiently thin walled to break during mill out while the housing is softer and easily milled out.

Abstract translation: 可钻头钻头组件可用于套管钻头，并且具有优选地与钻头牙冠相同材料的支撑壳体。 壳体优选通过焊接附接并且包含用于密封件的凹槽和用于插入物保持器的内螺纹。 用于硬化刀片的着陆台允许不同的尺寸插入壳体中并由与内螺纹啮合的硬化或硬质合金环保持器保持。 插入件和保持器足够薄壁，以在铣削过程中破裂，同时壳体更柔软并容易铣削。

公开(公告)号：US20100122848A1

公开(公告)日：2010-05-20

申请号：US12274709

申请日：2008-11-20

Applicant: Eric E. McClain

Inventor： Eric E. McClain

IPC: E21B10/00

CPC classification number: E21B10/43

Abstract: A method for optimizing drill bit design and several embodiments of an optimized drill bit for drilling a well in an earth formation. In one embodiment, the optimized drill bit comprises a diamond impregnated bit body with one or more cutting elements, the cutting element comprising a cutting table and a substrate. The substrate preferably comprises a material that will support the cutting table during normal drilling operations and wear when exposed to the earth formation, thereby limiting the effects of wear flat areas on drilling efficiency. Alternatively, or additionally, the cutting elements may be placed, or spaced, so as to limiting the effects of wear flat areas on drilling efficiency.

Abstract translation: 一种用于优化钻头设计的方法和用于在地层中钻井的优化钻头的若干实施例。 在一个实施例中，优化的钻头包括具有一个或多个切割元件的钻石浸渍钻头体，切割元件包括切割台和基底。 衬底优选地包括在暴露于地层时在常规钻井操作和磨损期间支撑切割台的材料，从而限制磨损平坦区域对钻井效率的影响。 或者或另外，切割元件可以被放置或间隔开，以便限制磨损平坦区域对钻井效率的影响。

公开(公告)号：US20100089661A1

公开(公告)日：2010-04-15

申请号：US12250447

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: E21B10/42

CPC classification number: E21B10/43

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：US20100051350A1

公开(公告)日：2010-03-04

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: E21B10/26

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

Abstract: The drilling of a casing bit and any other equipment in the casing with another casing bit where at least two casing bits of different diameter and having associated casing sections may be assembled to form a drilling assembly for drilling subterranean formations, the at least two casing bits and casing sections are arranged in a telescoping relationship.

Abstract translation: 套管钻头和壳体中的任何其他设备用另一个套管钻头钻孔，其中可以组装至少两个不同直径的壳体钻头并具有相关联的壳体部分以形成用于钻探地层的钻井组件，所述至少两个壳体钻头 并且套管部分以伸缩关系布置。

公开(公告)号：US20090120693A1

公开(公告)日：2009-05-14

申请号：US12270944

申请日：2008-11-14

Applicant: Eric E. McClain ,  Matthew R. Isbell ,  Jack Thomas Oldham ,  John C. Thomas ,  Marc W. Bird

Inventor： Eric E. McClain ,  Matthew R. Isbell ,  Jack Thomas Oldham ,  John C. Thomas ,  Marc W. Bird

IPC: E21B10/46 ,  E21B10/00 ,  B23P11/00 ,  E21B7/20 ,  E21B10/633

CPC classification number: E21B7/20 ,  E21B10/42 ,  E21B10/64 ,  Y10T29/49966

Abstract: Casing bits include a crown having a substantially hollow interior. The bit crown has blades over a face portion thereof, the blades including a plurality of cutting elements attached thereto. The bit crown further includes a composite inlay positioned at least within the substantially hollow interior. Casing bits also include case hardened outer surfaces radially outside the drill-out region. Casing bits further include short-substrate cutting elements. Methods of forming a casing bit are also disclosed.

Abstract translation: 套管钻头包括具有基本上中空的内部的表冠。 钻头牙冠在其表面部分上具有刀片，刀片包括附接到其上的多个切割元件。 钻头牙冠还包括至少位于基本上中空的内部内的复合嵌体。 套管钻头还包括径向在钻孔区域外部的外壳硬化的外表面。 套管钻头还包括短基板切割元件。 还公开了形成套管钻头的方法。

公开(公告)号：US20080202821A1

公开(公告)日：2008-08-28

申请号：US11678304

申请日：2007-02-23

Applicant: Eric E. McClain ,  Dan E. Scott ,  Wesley Dean Fuller ,  Robert M. Welch ,  Jimmy W. Eason ,  Marcus R. Skeem ,  Van J. Brackin

Inventor： Eric E. McClain ,  Dan E. Scott ,  Wesley Dean Fuller ,  Robert M. Welch ,  Jimmy W. Eason ,  Marcus R. Skeem ,  Van J. Brackin

IPC: E21B10/46

CPC classification number: C22C26/00 ,  B22F2005/001 ,  B22F2998/00 ,  C22C1/101 ,  C22C1/1036 ,  E21B10/46 ,  B22F1/02 ,  B22F1/025 ,  C22C1/05

Abstract: A method of constructing an earth-boring, diamond-impregnated drill bit has a first step of coating diamond grit with tungsten to create tungsten-coated diamond particles. These coated particles are then encapsulated in a layer of carbide powder held by an organic green binder material. The encapsulated granules are then mixed along with a matrix material and placed in a mold. The matrix material includes a matrix binder and abrasive particles. The mixture is heated in the mold at atmospheric pressure to cause the matrix binder to melt and infiltrate the encapsulated granules and abrasive particles.

Abstract translation: 构造钻地钻石，金刚石浸渍钻头的方法具有用钨涂覆金刚石砂粒以产生钨涂层金刚石颗粒的第一步骤。 然后将这些涂覆的颗粒包封在由有机绿色粘合剂材料保持的碳化物粉末层中。 然后将包封的颗粒与基质材料一起混合并置于模具中。 基质材料包括基质粘合剂和磨料颗粒。 将混合物在大气压下在模具中加热，使基质粘合剂熔化并渗透包封的颗粒和磨料颗粒。

公开(公告)号：US07395882B2

公开(公告)日：2008-07-08

申请号：US10783720

申请日：2004-02-19

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 ,  E21B10/46 ,  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, 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，可移动刀片，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：US20080149393A1

公开(公告)日：2008-06-26

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: E21B10/52

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 suitable for drilling at least one subterranean formation and the second type being cutting elements suitable for drilling through a casing bit disposed at an end of a casing or liner string and cementing equipment or other components, if such are disposed within the casing or liner string, as well as cement inside as well as exterior to the casing or liner string. 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. The first type of cutting elements may comprise superabrasive cutting elements and the second type of cutting elements may comprise tungsten carbide cutting elements.

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，第一类型是适合于钻取至少一个地下地层的切割元件，第二类型是适于通过设置的套管钻头进行钻孔的切割元件 在套管或衬管柱的一端，以及固井设备或其他部件，如果这些部件设置在壳体或衬套柱内，以及水泥内部以及外壳或衬套柱的外部。 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。 第一类型的切割元件可以包括超级磨料切割元件，并且第二类型的切割元件可以包括碳化钨切割元件。