公开(公告)号：WO2006104885A3

公开(公告)日：2007-07-19

申请号：PCT/US2006010775

申请日：2006-03-24

Applicant: BAKER HUGHES INC

Inventor： ZAHRADNIK ANTON F ,  SULLIVAN ERIC C ,  SMITH R SCOT ,  RUFF DANIEL E ,  ROBERTS DANIELLE V ,  ROBERTS DANIELLE

IPC: E21B10/54

CPC classification number: B23K31/02 ,  E21B10/00 ,  E21B10/42

Abstract: A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

Abstract translation: 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 此外，柄可以包括碳当量小于约0.35％的材料。 可以采用多遍焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的起始圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。

公开(公告)号：WO2006104885A8

公开(公告)日：2008-03-20

申请号：PCT/US2006010775

申请日：2006-03-24

Applicant: BAKER HUGHES INC

Inventor： ZAHRADNIK ANTON F ,  SULLIVAN ERIC C ,  SMITH R SCOT ,  RUFF DANIEL E ,  ROBERTS DANIELLE V ,  MASSEY ALAN J

IPC: E21B10/54

CPC classification number: B23K31/02 ,  E21B10/00 ,  E21B10/42

Abstract: A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

Abstract translation: 公开了一种用于旋转钻头的柄构造，用于相对于钻头体定位柄。 柄的锥形表面或特征可以被构造和定尺寸成匹配地接合钻头体的互补成形的表面或特征，从而相对于钻头体中心或定位。 可变形元件可以设置在柄和钻头体之间。 另外，柄可以包含碳当量小于约0.35％的材料。 可以采用多通焊接方法将柄和钻头体彼此固定，其中可以形成焊缝，使得一个焊缝起始于不同于其紧接在前的焊缝的始发圆周位置的周向位置至少约90° °。 此外，可以在多遍焊缝内形成应力状态。 还公开了一种制造方法。

公开(公告)号：CA2602020A1

公开(公告)日：2006-10-05

申请号：CA2602020

申请日：2006-03-24

Applicant: BAKER HUGHES INC

Inventor： SMITH R SCOT ,  RUFF DANIEL E ,  ROBERTS DANIELLE V ,  ZAHRADNIK ANTON F ,  SULLIVAN ERIC C ,  MASSEY ALAN J

IPC: E21B10/54

Abstract: A shank configuration for rotary drill bits is disclosed for positioning of the shank in relation to a bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90°. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

公开(公告)号：GB2377723B

公开(公告)日：2003-04-02

申请号：GB0225148

申请日：2001-10-26

Applicant: BAKER HUGHES INC

Inventor： SULLIVAN ERIC CHARLES ,  ZALESKI JR THEODORE EDWARD ,  SCHMIDT SCOTT RAY ,  RUFF DANIEL E ,  NGUYEN DON QUY ,  ZADRAPA GLENN R ,  MARVEL TIMOTHY K

IPC: E21B10/24 ,  E21B12/02 ,  E21B23/04 ,  E21B44/00 ,  E21B47/12

Abstract: A roller cone drill bit 511 has at least one sensor 207 monitoring its behaviour during drilling. A monitoring circuit 529 housed in an electronics bay 530 in the shank 525 of the bit processes data from the sensor. Power may be supplied from a battery (4020, figure 38A) located within a cavity in the bit and connected to the electronics bay by a conduit. The electronics bay may be partially defined by, and protected by, a fluid tight sealing cap. The sensors may identify imminent seal failure by detecting changes in bit lubricant composition using an annular capacitor to measure the dielectric constant of the lubricant.

公开(公告)号：GB2370592A

公开(公告)日：2002-07-03

申请号：GB0129729

申请日：2001-12-12

Applicant: BAKER HUGHES INC

Inventor： DYKSTRA MARK W ,  HEUSER WILLIAM ,  DOSTER MICHAEL L ,  ZALESKI THEODORE E ,  OLDHAM JACK T ,  WATTS TERRY D ,  RUFF DANIEL E ,  WALZEL RODNEY B ,  BEUERSHAUSEN CHRISTOPHER C

IPC: E21B10/42 ,  E21B10/43 ,  E21B10/46 ,  E21B10/56 ,  E21B10/567 ,  E21B10/573 ,  E21B12/04

Abstract: A rotary drill bit 300 comprises a bit body 301 including a longitudinal centreline L and an end face 320 embedded with superabrasive cutters 328. The cutters 328 are positioned such that their exposure perpendicular to the end face is limited. The end face preferably comprises a plurality of blades in which the cutters are embedded and has a total surface area such that when the maximum weight on bit is applied the load does not exceed the maximum compressive strength of the formation being drilled. Cutter exposure H c may vary according to the region 310, 312, 314, 316 of the end face on which they are placed, and radial overlap of cutters may be varied according to the hardness of the formation such that the drill bit is always supported under a variety of weight-on-bit loads and rates-of-penetration. The width of kerf regions (K w , figure 16) between cutters may range from .25 mm to 19.1 mm, and the height may range from .25 mm to 12.7 mm, depending on the formation to be drilled.

公开(公告)号：ITTO20011172A1

公开(公告)日：2003-06-16

申请号：ITTO20011172

申请日：2001-12-14

Applicant: BAKER HUGHES INC

Inventor： DYKSTRA MARK W ,  ZALESKI THEODORE EDWARD JR ,  BEUERSHAUSEN CHRISTOPHER C ,  DOSTER MICHAEL L ,  HEUSER WILLIAM H ,  OLDHAM JACK T ,  WATTS TERRY D ,  RUFF DANIEL E ,  WALZEL RODNEY B

公开(公告)号：GB2377724B

公开(公告)日：2003-04-02

申请号：GB0225149

申请日：2001-10-26

Applicant: BAKER HUGHES INC

Inventor： SULLIVAN ERIC CHARLES ,  ZALESKI JR THEODORE EDWARD ,  SCHMIDT SCOTT RAY ,  NGUYEN DON QUY ,  ZADRAPA GLENN R ,  MARVEL TIMOTHY K ,  RUFF DANIEL E

IPC: E21B10/24 ,  E21B12/02 ,  E21B23/04 ,  E21B44/00 ,  E21B47/12

Abstract: A roller cone drill bit 511 has at least one sensor 207 monitoring its behaviour during drilling. A monitoring circuit 529 housed in an electronics bay 530 in the shank 525 of the bit processes data from the sensor. Power may be supplied from a battery (4020, figure 38A) located within a cavity in the bit and connected to the electronics bay by a conduit. The electronics bay may be partially defined by, and protected by, a fluid tight sealing cap. The sensors may identify imminent seal failure by detecting changes in bit lubricant composition using an annular capacitor to measure the dielectric constant of the lubricant.

公开(公告)号：GB2368360A

公开(公告)日：2002-05-01

申请号：GB0125802

申请日：2001-10-26

Applicant: BAKER HUGHES INC

Inventor： SULLIVAN ERIC CHARLES ,  ZALESKI JR THEODORE EDWARD ,  SCHMIDT SCOTT RAY ,  NGUYEN DON QUY ,  ZADRAPA GLENN R ,  MARVEL TIMOTHY K ,  RUFF DANIEL E

IPC: E21B10/08 ,  E21B10/22 ,  E21B10/24 ,  E21B12/02 ,  E21B44/00 ,  E21B47/01 ,  E21B47/09 ,  E21B47/12

Abstract: A roller cone drill bit 511 has at least one sensor 207 monitoring its behaviour during drilling. A monitoring circuit 529 housed in an electronics bay 530 in the shank 525 of the bit processes data from the sensor. Power may be supplied from a battery also located within the bit (figure 38A) and protected by a sealing cap. The monitoring circuit communicates with the surface via a mud pulse actuation system (figure 39) located between two mud flow ports (4083, 4085) in the bit and comprising a piston (4092) and cylinder (4094) connected to a signal nozzle (4088). The sensors may identify imminent seal failure by detecting changes in bit lubricant composition using an annular capacitor to measure the dielectric constant of the lubricant. Also disclosed is an erodible or dissolvable ball (1003, figure 32) that is released by the monitoring system to temporarily block the mud flow, sending a mud pressure pulse signal to the surface.

公开(公告)号：ITTO20011172D0

公开(公告)日：2001-12-14

申请号：ITTO20011172

申请日：2001-12-14

Applicant: BAKER HUGHES INC

Inventor： DYKSTRA MARK W ,  ZALESKI THEODORE EDWARD JR ,  BEUERSHAUSEN CHRISTOPHER C ,  DOSTER MICHAEL L ,  HEUSER WILLIAM H ,  OLDHAM JACK T ,  WATTS TERRY D ,  RUFF DANIEL E ,  WALZEL RODNEY B

公开(公告)号：GB2368360B

公开(公告)日：2003-08-06

申请号：GB0125802

申请日：2001-10-26

Applicant: BAKER HUGHES INC

Inventor： SULLIVAN ERIC CHARLES ,  ZALESKI JR THEODORE EDWARD ,  SCHMIDT SCOTT RAY ,  NGUYEN DON QUY ,  ZADRAPA GLENN R ,  MARVEL TIMOTHY K ,  RUFF DANIEL E

IPC: E21B10/08 ,  E21B10/22 ,  E21B10/24 ,  E21B12/02 ,  E21B44/00 ,  E21B47/01 ,  E21B47/09 ,  E21B47/12

Abstract: An improved drill bit for use in drilling operations in a wellbore comprising a bit body including a plurality of bit legs, each supporting a rolling cone cutter, a lubrication system for a rolling cone cutter, at least one lubrication sensor for monitoring at least one condition of said lubricant during drilling operations, and an electronics member in the bit body for recording data obtained form said lubrication sensor.