公开(公告)号：EP2344715A4

公开(公告)日：2014-04-16

申请号：EP09821083

申请日：2009-10-13

Applicant: BAKER HUGHES INC

Inventor： WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR L ALLEN

IPC: E21B10/43

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

公开(公告)号：EP2342417A4

公开(公告)日：2014-04-23

申请号：EP09821087

申请日：2009-10-13

Applicant: BAKER HUGHES INC

Inventor： WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR L ALLEN

IPC: E21B10/43 ,  B22F5/00 ,  E21B10/00

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

公开(公告)号：WO2010045170A4

公开(公告)日：2010-07-01

申请号：PCT/US2009060413

申请日：2009-10-13

Applicant: BAKER HUGHES INC ,  WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR L ALLEN

Inventor： WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR L ALLEN

IPC: E21B10/46 ,  E21B10/48

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：PL2122000T3

公开(公告)日：2013-08-30

申请号：PL08725891

申请日：2008-02-21

Applicant: BAKER HUGHES INC

Inventor： MCCLAIN ERIC E ,  SCOTT DAN E ,  FULLER WESLEY DEAN ,  WELCH ROBERT M ,  EASON JIMMY W ,  SKEEM MARCUS R ,  BRACKIN VAN J

IPC: C22C32/00 ,  B22F1/02 ,  C22C1/05 ,  C22C26/00

公开(公告)号：WO2008103417B1

公开(公告)日：2008-10-23

申请号：PCT/US2008002301

申请日：2008-02-21

Applicant: BAKER HUGHES INC ,  MCCLAIN ERIC E ,  SCOTT DAN E ,  FULLER WESLEY DEAN ,  WELCH ROBERT M ,  EASON JIMMY W ,  SKEEM MARCUS R ,  BRACKIN VAN J

Inventor： MCCLAIN ERIC E ,  SCOTT DAN E ,  FULLER WESLEY DEAN ,  WELCH ROBERT M ,  EASON JIMMY W ,  SKEEM MARCUS R ,  BRACKIN VAN J

IPC: C22C32/00 ,  B22F1/02 ,  C22C1/05 ,  C22C26/00

CPC classification number: C22C26/00 ,  B22F2005/001 ,  B22F2998/00 ,  C22C1/101 ,  C22C1/1036 ,  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: 一种构造钻地钻石浸渍钻头的方法具有用钨涂覆金刚石砂砾以产生钨涂覆的金刚石颗粒的第一步骤。 然后将这些涂覆的颗粒封装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体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粒。 在大气压下将混合物在模具中加热，使基质粘合剂熔化并渗透封装的颗粒和磨粒。

公开(公告)号：WO2008027484B1

公开(公告)日：2008-05-22

申请号：PCT/US2007019085

申请日：2007-08-30

Applicant: BAKER HUGHES INC ,  OVERSTREET JAMES L ,  DOSTER MICHAEL L ,  MORRIS MARK E ,  GILMORE KENNETH E ,  WELCH ROBERT M ,  ROBERTS DANIELLE V

Inventor： OVERSTREET JAMES L ,  DOSTER MICHAEL L ,  MORRIS MARK E ,  GILMORE KENNETH E ,  WELCH ROBERT M ,  ROBERTS DANIELLE V

IPC: E21B10/00

CPC classification number: E21B10/54 ,  E21B10/43

Abstract: Earth-boring tools include wear-resistant materials disposed in at least one recess formed in an exterior surface of a body thereof. Exposed surfaces of the wear-resistant material are substantially level with exterior surfaces of the body adjacent the wear-resistant material. In some embodiments, recesses may be formed in formation-engaging surfaces of blades of earth-boring rotary tools, adjacent one or more inserts secured to bodies of earth-boring tools, or adjacent one or more cutting elements secured to bodies of earth-boring tools. Methods of forming earth-boring tools include filling one or more recesses formed in an exterior surface of a body with wear-resistant material and causing exposed surfaces of the wear-resistant material to be substantially level with the exterior surface of the body.

Abstract translation: 钻地工具包括设置在其主体的外表面中形成的至少一个凹部中的耐磨材料。 耐磨材料的暴露表面与邻近耐磨材料的本体的外表面基本齐平。 在一些实施例中，凹槽可形成在钻地旋转工具的叶片的地层接合表面中，邻近固定到钻地工具主体的一个或多个插入件，或邻近固定到地钻的主体的一个或多个切割元件 工具。 形成钻地工具的方法包括用耐磨材料填充形成在主体的外表面中的一个或多个凹槽，并使耐磨材料的暴露表面与主体的外表面基本齐平。

公开(公告)号：WO2010045167A3

公开(公告)日：2010-07-01

申请号：PCT/US2009060408

申请日：2009-10-13

Applicant: BAKER HUGHES INC ,  WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR L ALLEN

Inventor： WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR L ALLEN

IPC: E21B10/46 ,  E21B10/48

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.

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：WO2010045164A2

公开(公告)日：2010-04-22

申请号：PCT/US2009060404

申请日：2009-10-13

Applicant: BAKER HUGHES INC ,  WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR ALLEN L

Inventor： WELCH ROBERT M ,  MCCLAIN ERIC E ,  SINOR ALLEN L

IPC: E21B10/46 ,  E21B10/48

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

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：BRPI0920192A2

公开(公告)日：2015-12-29

申请号：BRPI0920192

申请日：2009-10-13

Applicant: BAKER HUGHES INC

Inventor： SINOR ALLEN L ,  MCCLAIN ERIC E ,  WELCH ROBERT M

IPC: E21B10/46 ,  E21B10/48

公开(公告)号：CA2662966C

公开(公告)日：2012-11-13

申请号：CA2662966

申请日：2007-08-30

Applicant: BAKER HUGHES INC

Inventor： OVERSTREET JAMES L ,  DOSTER MICHAEL L ,  MORRIS MARK E ,  GILMORE KENNETH E ,  WELCH ROBERT M ,  ROBERTS DANIELLE V

IPC: E21B10/00

Abstract: Earth-boring tools include wear-resistant materials disposed in at least one recess formed in an exterior surface of a body thereof. Exposed surfaces of the wear-resistant material are substantially level with exterior surfaces of the body adjacent the wear-resistant material. In some embodiments, recesses may be formed in formation-engaging surfaces of blades of earth-boring rotary tools, adjacent one or more inserts secured to bodies of earth-boring tools, or adjacent one or more cutting elements secured to bodies of earth-boring tools. Methods of forming earth-boring tools include filling one or more recesses formed in an exterior surface of a body with wear-resistant material and causing exposed surfaces of the wear-resistant material to be substantially level with the exterior surface of the body.