公开(公告)号：US10072462B2

公开(公告)日：2018-09-11

申请号：US15097539

申请日：2016-04-13

申请人： Baker Hughes Incorporated

发明人： 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分类号： E21B10/08 ,  E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/28 ,  E21B10/52 ,  E21B10/26 ,  E21B10/55

CPC分类号： E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

摘要： 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

申请人： Baker Hughes Incorporated

发明人： 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分类号： E21B10/14 ,  E21B7/00

CPC分类号： E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

摘要： 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.

摘要翻译： 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：US20140151131A1

公开(公告)日：2014-06-05

申请号：US13905396

申请日：2013-05-30

申请人： Baker Hughes Incorporated

发明人： Anton F. Zahradnik ,  Ron D. McCormick ,  Rudolf C. Pessier ,  Jack T. Oldham ,  Michael S. Damschen ,  Don Q. Nguyen ,  Matt Meiners ,  Karlos B. Cepeda ,  Mark P. Blackman

IPC分类号： E21B10/14

CPC分类号： E21B10/14 ,  E21B10/00

摘要： A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.

摘要翻译： 一个位体在其上部配置用于连接到一个钻柱。 至少一个固定刀片从钻头体向下延伸，并具有径向最外面的表面。 多个固定切割元件固定在固定刀片上，优选地在其旋转前缘处成行。 至少一个位腿被固定到钻头体上，并且滚动切割器被安装成用于在钻头腿上旋转。 至少一个稳定器垫设置在钻头腿和固定刀片之间，稳定器垫径向向外延伸到基本上为表面。 每个叶片的径向最外面的表面可以平行于钻头轴线轴向向下延伸，或相对于钻头轴线螺旋状或螺旋状地成角度（非平行）延伸。

公开(公告)号：US09670736B2

公开(公告)日：2017-06-06

申请号：US13905396

申请日：2013-05-30

申请人： Baker Hughes Incorporated

发明人： Anton F. Zahradnik ,  Ron D. McCormick ,  Rudolf C. Pessier ,  Jack T. Oldham ,  Michael S. Damschen ,  Don Q. Nguyen ,  Matt Meiners ,  Karlos B. Cepeda ,  Mark P. Blackman

IPC分类号： E21B10/14 ,  E21B10/00

CPC分类号： E21B10/14 ,  E21B10/00

摘要： A bit body is configured at its upper extent for connection into a drillstring. At least one fixed blade extends downwardly from the bit body, and has a radially outermost gage surface. A plurality of fixed cutting elements is secured to the fixed blade, preferably in a row at its rotationally leading edge. At least one bit leg is secured to the bit body and a rolling cutter is mounted for rotation on the bit leg. At least one stabilizer pad is disposed between the bit leg and the fixed blade, the stabilizer pad extending radially outward to substantially the gage surface. The radially outermost gage surface of each blade can extend axially downward parallel to the bit axis or angled (non-parallel), spirally or helically, relative to the bit axis.

公开(公告)号：US09249629B2

公开(公告)日：2016-02-02

申请号：US14808817

申请日：2015-07-24

申请人： Baker Hughes Incorporated

发明人： Chih Lin ,  Terry J. Koltermann ,  Anton F. Zahradnik ,  Gregory L. Ricks

IPC分类号： E21B10/25 ,  E21B10/22

CPC分类号： E21B10/25 ,  E21B2010/225 ,  F16J15/328 ,  F16J15/3284 ,  F16J15/344

摘要： A backup ring for a face seal in a roller cone bit is configured to resist wear from drilling fluids present adjacent exposed faces of the backup ring. Portions are removed from an exposed end face in a variety of shapes while the hardness of the material is increased. The removal of material offsets an increase in force that would be transmitted through the backup ring on face seal assembly due to flexing. A spring can optionally be included in the removed material location. Another way is to increase the edge density of all or part of the exposed edges while leaving the interior portions unaffected by using electron beam radiation to increase the crosslink density or by other techniques that allow a unitary structure with a more durable edge region.

摘要翻译： 用于辊锥形钻头中的面密封件的支撑环被配置为抵抗与备用环的暴露面相邻的钻井液的磨损。 部件从各种形状的露出端面移除，同时材料的硬度增加。 材料的去除抵消了由于弯曲而将通过表面密封组件上的支撑环传递的力的增加。 可以可选地在去除的材料位置中包括弹簧。 另一种方法是增加所有或部分暴露边缘的边缘密度，同时通过使用电子束辐射不影响内部部分以增加交联密度，或通过允许具有更持久的边缘区域的整体结构的其它技术来增加边缘密度。

公开(公告)号：US09157280B2

公开(公告)日：2015-10-13

申请号：US13763396

申请日：2013-02-08

申请人： Baker Hughes Incorporated

发明人： Chih Lin ,  Terry J. Koltermann ,  Anton F. Zahradnik ,  Alejandro Flores ,  Gregory L. Ricks

IPC分类号： E21B10/22 ,  E21B10/25 ,  F16J15/22

CPC分类号： E21B10/25

摘要： A backup ring for a face seal in a roller cone bit is configured to resist wear from drilling fluids present adjacent exposed faces of the backup ring. Portions are removed from an exposed end face in a variety of shapes while the hardness of the material is increased. The removal of material offsets an increase in force that would be transmitted through the backup ring on face seal assembly due to flexing. A spring can optionally be included in the removed material location. Another way is to increase the edge density of all or part of the exposed edges while leaving the interior portions unaffected by using electron beam radiation to increase the crosslink density or by other techniques that allow a unitary structure with a more durable edge region.

摘要翻译： 用于辊锥形钻头中的面密封件的支撑环被配置为抵抗与备用环的暴露面相邻的钻井液的磨损。 部件从各种形状的露出端面移除，同时材料的硬度增加。 材料的去除抵消了由于弯曲而将通过表面密封组件上的支撑环传递的力的增加。 可以可选地在去除的材料位置中包括弹簧。 另一种方法是增加所有或部分暴露边缘的边缘密度，同时通过使用电子束辐射不影响内部部分以增加交联密度，或通过允许具有更持久的边缘区域的整体结构的其它技术来增加边缘密度。

公开(公告)号：US20130313021A1

公开(公告)日：2013-11-28

申请号：US13678521

申请日：2012-11-15

申请人： Baker Hughes Incorporated

发明人： 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分类号： E21B10/14 ,  E21B7/00

CPC分类号： E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

摘要： 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.

摘要翻译： 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：US10190366B2

公开(公告)日：2019-01-29

申请号：US15137294

申请日：2016-04-25

申请人： BAKER HUGHES INCORPORATED

发明人： 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分类号： E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/28 ,  E21B10/52 ,  E21B10/26 ,  E21B10/55

摘要： 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：US09810026B2

公开(公告)日：2017-11-07

申请号：US14589059

申请日：2015-01-05

申请人： Baker Hughes Incorporated

发明人： Anton F. Zahradnik

IPC分类号： E21B10/00 ,  E21B10/62 ,  E21B10/42 ,  B22D19/00 ,  E21B10/567

CPC分类号： E21B10/62 ,  B22D19/00 ,  E21B10/42 ,  E21B10/567 ,  Y10T29/49 ,  Y10T29/49826

摘要： A fixed-cutter earth-boring tool includes a first blade substantially comprising a first material having a first elastic modulus at a temperature, and a second blade substantially comprising a second material having a second elastic modulus at the temperature. The second elastic modulus is different from the first elastic modulus. A method of forming an earth-boring tool includes forming a bit body having a plurality of blades, and providing at least one cutting element on at least one of the plurality of blades. Some fixed-cutter earth-boring drill bits include a first blade exhibiting a first deflection when subjected to a load, and a second blade exhibiting a second deflection when subjected to the load. The first deflection may be a continuous function of the load, and the second deflection may be a discontinuous function of the load.

公开(公告)号：US20160230467A1

公开(公告)日：2016-08-11

申请号：US15097539

申请日：2016-04-13

申请人： Baker Hughes Incorporated

发明人： 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分类号： E21B10/14 ,  E21B10/28 ,  E21B10/16 ,  E21B10/22 ,  E21B10/18 ,  E21B10/52

CPC分类号： E21B10/14 ,  E21B7/00 ,  E21B10/16 ,  E21B10/18 ,  E21B10/22 ,  E21B10/26 ,  E21B10/28 ,  E21B10/52 ,  E21B10/55

摘要： 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.

摘要翻译： 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。