公开(公告)号：CA2740218A1

公开(公告)日：2010-04-22

申请号：CA2740218

申请日：2009-10-13

Applicant: BAKER HUGHES INC

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

IPC: E21B10/46 ,  E21B10/48

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：CA2662966A1

公开(公告)日：2008-03-06

申请号：CA2662966

申请日：2007-08-30

Applicant: BAKER HUGHES INC

Inventor： OVERSTREET JAMES L ,  GILMORE KENNETH E ,  WELCH ROBERT M ,  DOSTER MICHAEL L ,  MORRIS MARK E ,  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 surfac es of the body adjacent the wear-resistant material. In some embodiments, re cesses may be formed in formation-engaging surfaces of blades of earth-borin g rotary tools, adjacent one or more inserts secured to bodies of earth-bori ng tools, or adjacent one or more cutting elements secured to bodies of eart h-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 m aterial and causing exposed surfaces of the wear-resistant material to be su bstantially level with the exterior surface of the body.

公开(公告)号：WO2010045165A3

公开(公告)日：2010-07-01

申请号：PCT/US2009060405

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.

公开(公告)号：WO2009058808A1

公开(公告)日：2009-05-07

申请号：PCT/US2008081510

申请日：2008-10-29

Applicant: BAKER HUGHES INC ,  GREEN JAMES C ,  DOSTER MICHAEL L ,  HOINES JASON E ,  WELCH ROBERT M ,  ROBERTS DANIELLE V

Inventor： GREEN JAMES C ,  DOSTER MICHAEL L ,  HOINES JASON E ,  WELCH ROBERT M ,  ROBERTS DANIELLE V

IPC: E21B10/42 ,  E21B10/43

CPC classification number: E21B10/42 ,  E21B10/43

Abstract: A drill bit having a bit body includes a blade face surface on at least one blade extending longitudinally and radially outward over a face of the bit body. The blade face surface of the at least one blade includes a contact zone and a sweep zone. The sweep zone rotationally trials the contact zone with respect to a direction of intended bit rotation about a longitudinal axis of the bit body, which reduces rubbing contact when engaging with a subterranean formation.

Abstract translation: 具有钻头体的钻头包括在钻头体的表面上纵向和径向向外延伸的至少一个刀片上的刀片表面。 所述至少一个叶片的叶片表面包括接触区域和扫掠区域。 扫掠区域围绕钻头体的纵向轴线相对于预期的钻头旋转的方向旋转地试验接触区域，这在与地下地层接合时减少摩擦接触。

公开(公告)号：CA2740218C

公开(公告)日：2015-04-14

申请号：CA2740218

申请日：2009-10-13

Applicant: BAKER HUGHES INC

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

IPC: E21B10/46 ,  E21B10/48

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：CA2740216C

公开(公告)日：2014-12-23

申请号：CA2740216

申请日：2009-10-13

Applicant: BAKER HUGHES INC

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

IPC: E21B10/46 ,  E21B10/48

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：CA2740216A1

公开(公告)日：2010-04-22

申请号：CA2740216

申请日：2009-10-13

Applicant: BAKER HUGHES INC

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

IPC: E21B10/46 ,  E21B10/48

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：MX2009008912A

公开(公告)日：2009-09-11

申请号：MX2009008912

申请日：2008-02-21

Applicant: BAKER HUGHES INC

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

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

Abstract: Un método para construir una barrena impregnada de diamantes de perforación terrestre tiene una primera etapa para revestir granalla de diamantes con tungsteno para crear partículas de diamante revestidas con tungsteno. Estas partículas revestidas entonces son encapsuladas en una capa de polvo de carburo mantenido por un material aglutinante sin procesar orgánico. Los gránulos encapsulados entonces se mezclan junto con un material de matriz y se colocan en un molde. El material de matriz incluye un aglutinante de matriz y partículas abrasivas. La mezcla se calienta en el molde a presión atmosférica para provocar que el material de matriz se funda e infiltre los gránulos encapsulados y las partículas abrasivas.

公开(公告)号：MX2009008257A

公开(公告)日：2009-08-12

申请号：MX2009008257

申请日：2008-02-11

Applicant: BAKER HUGHES INC

Inventor： WELCH ROBERT M ,  FELDERHOFF FLOYD C ,  DOSTER MICHAEL L

IPC: E21B10/43

Abstract: Se describe una barrena (11) rotatoria de perforación de corte fijo que tiene elementos (17) de corte de precisión en ángulos de inclinación posterior larga. La longitud del corte (33) se ubica en la porción de pared lateral de diámetro externo de la barrena que se extiende desde el extremo de corte. La longitud del corte y sus componentes (17) de corte hacen contacto con la pared lateral del pozo de sondeo durante las operaciones de perforación. Los elementos de cote de precisión pueden configurarse en un ángulo de inclinación posterior en un margen de aproximadamente 40º a 70º.