公开(公告)号：US20130313021A1

公开(公告)日：2013-11-28

申请号：US13678521

申请日：2012-11-15

Applicant: Baker Hughes Incorporated

Inventor： Anton F. Zahradnik ,  Robert J. Buske ,  Rudolf C. Pessier ,  Don Q. Nguyen ,  Karlos Cepeda ,  Michael S. Damschen ,  Mitchell A. Rothe ,  Johnathan Howard ,  Gregory C. Prevost ,  Chaitanya K Vempati ,  John F. Bradford

IPC: E21B10/14 ,  E21B7/00

CPC classification number: E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

Abstract: An earth boring drill bit is described, the bit having a bit body having a central longitudinal axis that defines an axial center of the bit body and configured at its upper extent for connection into a drillstring; at least one primary fixed blade extending downwardly from the bit body and inwardly toward, but not proximate to, the central axis of the drill bit; at least one secondary fixed blade extending radially outward from proximate the central axis of the drill bit; a plurality of fixed cutting elements secured to the primary and secondary fixed blades; at least one bit leg secured to the bit body; and a rolling cutter mounted for rotation on the bit leg; wherein the fixed cutting elements on at least one fixed blade extend from the center of the bit outward toward the gage of the bit but do not include a gage cutting region, and wherein at least one roller cone cutter portion extends from substantially the drill bit's gage region inwardly toward the center of the bit, the apex of the roller cone cutter being proximate to the terminal end of the at least one secondary fixed blade, but does not extend to the is center of the bit.

Abstract translation: 描述了一种钻孔钻头，钻头具有中心纵向轴线的中心纵向轴线，该中心纵向轴线限定钻头体的轴向中心，并且在其上部区域上构造以连接到钻柱中; 至少一个主要固定刀片从钻头体向下延伸并向内朝向钻头的中心轴线但不接近钻头; 从钻头的中心轴线的径向向外延伸的至少一个次级固定刀片; 多个固定切割元件，固定到主固定刀片和次固定刀片; 至少一个位腿固定在钻头体上; 以及安装用于在所述钻头腿上旋转的滚动刀具; 其中至少一个固定刀片上的固定切割元件从钻头的中心向外延伸到钻头的量规，但是不包括计量切割区域，并且其中至少一个滚子锥形切割器部分基本上从钻头的计量 区域向内朝向钻头的中心，滚子锥形切割器的顶点靠近至少一个次级固定刀片的终端，但不延伸到钻头的中心。

公开(公告)号：US10072462B2

公开(公告)日：2018-09-11

申请号：US15097539

申请日：2016-04-13

Applicant: Baker Hughes Incorporated

Inventor： Anton F. Zahradnik ,  Rudolf C. Pessier ,  Mitchell A. Rothe ,  Don Q. Nguyen ,  Karlos Cepeda ,  Michael S. Damschen ,  Robert J. Buske ,  Johnathan Howard ,  John F. Bradford ,  Gregory C. Prevost ,  Chaitanya K. Vempati

IPC: E21B10/08 ,  E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/28 ,  E21B10/52 ,  E21B10/26 ,  E21B10/55

CPC classification number: E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

Abstract: An earth-boring drill bit is described, the bit having a bit body having a central longitudinal axis that defines an axial center of the bit body and configured at its upper extent for connection into a drill string; at least one primary fixed blade extending downwardly from the bit body and inwardly toward, but not proximate to, the central axis of the drill bit; at least one secondary fixed blade extending radially outward from proximate the central axis of the drill bit; a plurality of fixed cutting elements secured to the primary and secondary fixed blades; at least one bit leg secured to the bit body; and a rolling cutter mounted for rotation on the bit leg; wherein the fixed cutting elements on at least one fixed blade extend from a center of the bit outward toward a gage region of the bit but do not include a gage cutting region, and wherein at least one roller cone cutter portion extends from substantially the drill bit's gage region inwardly toward the center of the bit, an apex of the roller cone cutter being proximate to the terminal end of the at least one secondary fixed blade, but does not extend to the center of the bit.

公开(公告)号：US09353575B2

公开(公告)日：2016-05-31

申请号：US13678521

申请日：2012-11-15

Applicant: Baker Hughes Incorporated

Inventor： Anton F. Zahradnik ,  Robert J. Buske ,  Rudolf C. Pessier ,  Don Q. Nguyen ,  Karlos Cepeda ,  Michael S. Damschen ,  Mitchell A. Rothe ,  Johnathan Howard ,  Gregory C. Prevost ,  Chaitanya K Vempati ,  John F. Bradford

IPC: E21B10/14 ,  E21B7/00

CPC classification number: E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

Abstract: An earth boring drill bit is described, the bit having a bit body having a central longitudinal axis that defines an axial center of the bit body and configured at its upper extent for connection into a drillstring; at least one primary fixed blade extending downwardly from the bit body and inwardly toward, but not proximate to, the central axis of the drill bit; at least one secondary fixed blade extending radially outward from proximate the central axis of the drill bit; a plurality of fixed cutting elements secured to the primary and secondary fixed blades; at least one bit leg secured to the bit body; and a rolling cutter mounted for rotation on the bit leg; wherein the fixed cutting elements on at least one fixed blade extend from the center of the bit outward toward the gage of the bit but do not include a gage cutting region, and wherein at least one roller cone cutter portion extends from substantially the drill bit's gage region inwardly toward the center of the bit, the apex of the roller cone cutter being proximate to the terminal end of the at least one secondary fixed blade, but does not extend to the center of the bit.

Abstract translation: 描述了一种钻孔钻头，钻头具有中心纵向轴线的中心纵向轴线，该中心纵向轴线限定钻头体的轴向中心，并且在其上部区域上构造以连接到钻柱中; 至少一个主要固定刀片从钻头体向下延伸并向内朝向钻头的中心轴线但不接近钻头; 从钻头的中心轴线的径向向外延伸的至少一个次级固定刀片; 多个固定切割元件，固定到主固定刀片和次固定刀片; 至少一个位腿固定在钻头体上; 以及安装用于在所述钻头腿上旋转的滚动刀具; 其中至少一个固定刀片上的固定切割元件从钻头的中心向外延伸到钻头的量规，但是不包括计量切割区域，并且其中至少一个滚子锥形切割器部分基本上从钻头的计量 区域向内朝向钻头的中心，滚子锥形切割器的顶点靠近至少一个辅助固定刀片的终端，但不延伸到钻头的中心。

公开(公告)号：US10190366B2

公开(公告)日：2019-01-29

申请号：US15137294

申请日：2016-04-25

Applicant: BAKER HUGHES INCORPORATED

Inventor： Anton F. Zahradnik ,  Robert J. Buske ,  Rudolf C. Pessier ,  Don Q. Nguyen ,  Karlos Cepeda ,  Michael S. Damschen ,  Mitchell A. Rothe ,  Johnathan Howard ,  Gregory C. Prevost ,  Chaitanya K. Vempati ,  John F. Bradford

IPC: E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/28 ,  E21B10/52 ,  E21B10/26 ,  E21B10/55

Abstract: An earth-boring drill bit is described, the bit having a bit body having a central longitudinal axis that defines an axial center of the bit body and configured at its upper extent for connection into a drill string; at least one primary fixed blade extending downwardly from the bit body and inwardly toward, but not proximate to, the central axis of the drill bit; at least one secondary fixed blade extending radially outward from proximate the central axis of the drill bit; a plurality of fixed cutting elements secured to the primary and secondary fixed blades; at least one bit leg secured to the bit body; and a rolling cutter mounted for rotation on the bit leg; wherein the fixed cutting elements on at least one fixed blade extend from a center of the bit outward toward a gage region of the bit but do not include a gage cutting region, and wherein at least one roller-cone cutter portion extends from substantially the drill bit's gage region inwardly toward the center of the bit, an apex of the roller-cone cutter being proximate to the terminal end of the at least one secondary fixed blade, but does not extend to the center of the bit.

公开(公告)号：US20180023372A1

公开(公告)日：2018-01-25

申请号：US15724483

申请日：2017-10-04

Applicant: Baker Hughes Incorporated

Inventor： Gregory C. Prevost ,  Lance A. Endres ,  Tyler R. Reynolds

IPC: E21B41/00 ,  E21B10/00 ,  G06F17/50

CPC classification number: E21B41/0092 ,  E21B10/00 ,  G06F17/5086

Abstract: Methods of designing an earth-boring tool are described, including calculating one or more performance parameters of the tool based on drilling conditions, a plurality of depth of cut values, and a set of values of other design variables. Methods of enhancing a performance parameter in the design of an earth-boring tool are also described, including calculating the performance parameter based at least partially on a plurality of depth of cut values and a first set of values of other design variables, calculating the performance parameter based at least partially on a second set of values of the other design variables different than the first set, and comparing the calculated performance parameters to determine which of the first and the second set is closer to a target range or value across a range of the plurality of depths of cut. Related methods of forming an earth-boring tool are also described.

公开(公告)号：US09803451B2

公开(公告)日：2017-10-31

申请号：US14176618

申请日：2014-02-10

Applicant: Baker Hughes Incorporated

Inventor： Gregory C. Prevost ,  Lance A. Endes ,  Tyler R. Reynolds

IPC: G06F17/50 ,  E21B41/00 ,  E21B10/00

CPC classification number: E21B41/0092 ,  E21B10/00 ,  G06F17/5086

Abstract: Methods of designing an earth-boring tool are described, including calculating one or more performance parameters of the tool based on drilling conditions, a plurality of depth of cut values, and a set of values of other design variables. Methods of enhancing a performance parameter in the design of an earth-boring tool are also described, including calculating the performance parameter based at least partially on a plurality of depth of cut values and a first set of values of other design variables, calculating the performance parameter based at least partially on a second set of values of the other design variables different than the first set, and comparing the calculated performance parameters to determine which of the first and the second set is closer to a target range or value across a range of the plurality of depths of cut. Related methods of forming an earth-boring tool are also described.

公开(公告)号：US20160230467A1

公开(公告)日：2016-08-11

申请号：US15097539

申请日：2016-04-13

Applicant: Baker Hughes Incorporated

Inventor： Anton F. Zahradnik ,  Rudolf C. Pessier ,  Mitchell A. Rothe ,  Don Q. Nguyen ,  Karlos Cepeda ,  Michael S. Damschen ,  Robert J. Buske ,  Johnathan Howard ,  John F. Bradford ,  Gregory C. Prevost ,  Chaitanya K. Vempati

IPC: E21B10/14 ,  E21B10/28 ,  E21B10/16 ,  E21B10/22 ,  E21B10/18 ,  E21B10/52

CPC classification number: E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

Abstract: An earth-boring drill bit is described, the bit having a bit body having a central longitudinal axis that defines an axial center of the bit body and configured at its upper extent for connection into a drill string; at least one primary fixed blade extending downwardly from the bit body and inwardly toward, but not proximate to, the central axis of the drill bit; at least one secondary fixed blade extending radially outward from proximate the central axis of the drill bit; a plurality of fixed cutting elements secured to the primary and secondary fixed blades; at least one bit leg secured to the bit body; and a rolling cutter mounted for rotation on the bit leg; wherein the fixed cutting elements on at least one fixed blade extend from the center of the bit outward toward the gage of the bit but do not include a gage cutting region, and wherein at least one roller cone cutter portion extends from substantially the drill bit's gage region inwardly toward the center of the bit, the apex of the roller cone cutter being proximate to the terminal end of the at least one secondary fixed blade, but does not extend to the center of the bit.

Abstract translation: 描述了一种钻孔钻头，该钻头具有中心纵向轴线的中心纵向轴线，该中心纵向轴线限定钻头体的轴向中心并且在其上部区域上构造以连接到钻柱中; 至少一个主要固定刀片从钻头体向下延伸并向内朝向钻头的中心轴线但不接近钻头; 从钻头的中心轴线的径向向外延伸的至少一个次级固定刀片; 多个固定切割元件，固定到主固定刀片和次固定刀片; 至少一个位腿固定在钻头体上; 以及安装用于在所述钻头腿上旋转的滚动刀具; 其中至少一个固定刀片上的固定切割元件从钻头的中心向外延伸到钻头的量规，但是不包括计量切割区域，并且其中至少一个滚子锥形切割器部分基本上从钻头的计量 区域向内朝向钻头的中心，滚子锥形切割器的顶点靠近至少一个辅助固定刀片的终端，但不延伸到钻头的中心。

公开(公告)号：US20140156230A1

公开(公告)日：2014-06-05

申请号：US14176618

申请日：2014-02-10

Applicant: Baker Hughes Incorporated

Inventor： Gregory C. Prevost ,  Lance A. Endes ,  Tyler R. Reynolds

IPC: E21B41/00 ,  G06F17/50

CPC classification number: E21B41/0092 ,  E21B10/00 ,  G06F17/5086

Abstract: Methods of designing an earth-boring tool are described, including calculating one or more performance parameters of the tool based on drilling conditions, a plurality of depth of cut values, and a set of values of other design variables. Methods of enhancing a performance parameter in the design of an earth-boring tool are also described, including calculating the performance parameter based at least partially on a plurality of depth of cut values and a first set of values of other design variables, calculating the performance parameter based at least partially on a second set of values of the other design variables different than the first set, and comparing the calculated performance parameters to determine which of the first and the second set is closer to a target range or value across a range of the plurality of depths of cut. Related methods of forming an earth-boring tool are also described.

Abstract translation: 描述了设计镗孔刀具的方法，包括基于钻井条件，多个切削深度值以及一组其他设计变量的值计算刀具的一个或多个性能参数。 还描述了增强挖掘工具设计中的性能参数的方法，包括至少部分地基于多个切割深度值和其他设计变量的第一组值来计算性能参数，计算性能 参数至少部分地基于不同于第一组的其他设计变量的第二组值，并且比较所计算的性能参数以确定第一组和第二组中的哪一个更接近于跨越的范围的目标范围或值 多个切割深度。 还描述了形成钻孔工具的相关方法。