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1. 发明授权

US10000977B2 Drill bit with self-adjusting pads 有权
公开(公告)号：US10000977B2
公开(公告)日：2018-06-19
申请号：US14864436
申请日：2015-09-24
申请人： Baker Hughes Incorporated
发明人： Jayesh R. Jain , Benjamin Baxter , Chaitanya K. Vempati , Steven R. Radford , Volker Peters , Gregory L. Ricks , Miguel Bilen , Holger Stibbe , David A. Curry
IPC分类号： E21B10/60 , E21B10/50 , E21B3/00 , E21B10/40 , E21B10/62 , E21B10/54 , E21B10/42
CPC分类号： E21B10/62 , E21B3/00 , E21B10/42 , E21B10/54 , E21B2010/622
摘要： A drill bit includes a bit body; a pad associated with the bit body; and a rate control device coupled to the pad that extends from a bit surface at a first rate and retracts from an extended position to a retracted position at a second rate in response to external force applied onto the pad. The rate control device includes a piston for applying a force on the pad; a biasing member that applies a force on the piston to extend the pad at the first rate; a fluid chamber associated with the piston; and a pressure management device for controlling a fluid pressure within the fluid chamber.

2. 发明申请

US20140225328A1 Enhanced Backup Ring Edge Features for Metal Face Seal in Roller Cone Drill Bits 审中-公开
标题翻译：增强的备用环形边缘特性用于滚子锥钻头中的金属表面密封
公开(公告)号：US20140225328A1
公开(公告)日：2014-08-14
申请号：US13763405
申请日：2013-02-08
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
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。

3. 发明申请

US20140225327A1 Enhanced Backup Ring Features for Metal Face Seal in Roller Cone Drill Bits 有权
标题翻译：增强的后备环特征用于滚子钻头中的金属表面密封
公开(公告)号：US20140225327A1
公开(公告)日：2014-08-14
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： E21B10/25
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。

4. 发明授权

US10094174B2 Earth-boring tools including passively adjustable, aggressiveness-modifying members and related methods 有权
公开(公告)号：US10094174B2
公开(公告)日：2018-10-09
申请号：US14973282
申请日：2015-12-17
申请人： Baker Hughes Incorporated
发明人： Jayesh Rameshlal Jain , Chaitanya K. Vempati , Gregory L. Ricks , Juan Miguel Bilen
IPC分类号： E21B10/62 , E21B7/06 , E21B10/54 , E21B10/20 , E21B10/42 , E21B17/10
摘要： Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member.

5. 发明申请

US20180179826A9 EARTH-BORING TOOLS INCLUDING PASSIVELY ADJUSTABLE, AGRESSIVENESS-MODIFYING MEMBERS AND RELATED METHODS 审中-公开
公开(公告)号：US20180179826A9
公开(公告)日：2018-06-28
申请号：US14973282
申请日：2015-12-17
申请人： Baker Hughes Incorporated
发明人： Jayesh Rameshlal Jain , Chaitanya K. Vempati , Gregory L. Ricks , Juan Miguel Bilen
IPC分类号： E21B10/62 , E21B10/20 , E21B10/42
CPC分类号： E21B10/62 , E21B7/064 , E21B10/20 , E21B10/42 , E21B10/54 , E21B17/1092 , E21B2010/622
摘要： Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member.

6. 发明申请

US20170175455A1 EARTH-BORING TOOLS INCLUDING PASSIVELY ADJUSTABLE, AGRESSIVENESS-MODIFYING MEMBERS AND RELATED METHODS 审中-公开
公开(公告)号：US20170175455A1
公开(公告)日：2017-06-22
申请号：US14973282
申请日：2015-12-17
申请人： Baker Hughes Incorporated
发明人： Jayesh Rameshlal Jain , Chaitanya K. Vempati , Gregory L. Ricks , Juan Miguel Bilen
IPC分类号： E21B10/62 , E21B10/42 , E21B10/20
CPC分类号： E21B10/62 , E21B7/064 , E21B10/20 , E21B10/42 , E21B10/54 , E21B17/1092 , E21B2010/622
摘要： Earth-boring tools may include a body and a passively adjustable, aggressiveness-modifying member secured to the body. The passively adjustable, aggressiveness-modifying member may be movable between a first position in which the earth-boring tool exhibits a first aggressiveness and a second position in which the earth-boring tool exhibits a second, different aggressiveness responsive to forces acting on the passively adjustable, aggressiveness-modifying member.

7. 发明申请

US20170175454A1 SELF-ADJUSTING EARTH-BORING TOOLS AND RELATED SYSTEMS AND METHODS 审中-公开
公开(公告)号：US20170175454A1
公开(公告)日：2017-06-22
申请号：US14972635
申请日：2015-12-17
申请人： Baker Hughes Incorporated
发明人： Gregory L. Ricks , Chaitanya K. Vempati , Jayesh Rameshlal Jain , Juan Miguel Bilen , Anthony Phillips
IPC分类号： E21B10/62 , E21B10/42
CPC分类号： E21B10/62 , E21B10/42 , E21B10/633
摘要： A self-adjusting earth-boring tool includes a body carrying cutting elements and an actuation device disposed at least partially within the body. The actuation device may include a first fluid chamber, a second fluid chamber, a first reciprocating member, and a second reciprocating member. The first and second reciprocating members may divide portions of the first fluid chamber from portions of the second fluid chamber. A connection member may be attached to both of the first and second reciprocating members and may have a drilling element removably coupled thereto. A first fluid flow path may extend from the second fluid chamber to the first fluid chamber. A second fluid flow path may extend from the first fluid chamber to the second fluid chamber.

8. 发明申请

US20160053551A1 DRILL BIT WITH SELF-ADJUSTING PADS 有权
公开(公告)号：US20160053551A1
公开(公告)日：2016-02-25
申请号：US14864436
申请日：2015-09-24
申请人： Baker Hughes Incorporated
发明人： Jayesh R. Jain , Benjamin Baxter , Chaitanya K. Vempati , Steven R. Ranford , Volker Peters , Gregory L. Ricks , Miguel Bilen , Holger Stibbe , David A. Curry
IPC分类号： E21B10/62 , E21B3/00 , E21B10/42
CPC分类号： E21B10/62 , E21B3/00 , E21B10/42 , E21B10/54 , E21B2010/622
摘要： In one aspect, a drill bit is disclosed, including: a bit body; a pad associated with the bit body; a rate control device coupled to the pad that extends from a bit surface at a first rate and retracts from an extended position to a retracted position at a second rate in response to external force applied onto the pad, the rate control device including: a piston for applying a force on the pad; a biasing member that applies a force on the piston to extend the pad at the first rate; a fluid chamber associated with the piston; and a pressure management device for controlling a fluid pressure within the fluid chamber.

9. 发明申请

US20150330152A1 Enhanced Backup Ring Edge Features for Metal Face Seal in Roller Cone Drill Bits 有权
标题翻译：增强的备用环形边缘特性用于滚子锥钻头中的金属表面密封
公开(公告)号：US20150330152A1
公开(公告)日：2015-11-19
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
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。

10. 发明授权

US09782857B2 Hybrid drill bit having increased service life 有权
公开(公告)号：US09782857B2
公开(公告)日：2017-10-10
申请号：US14611167
申请日：2015-01-30
申请人： BAKER HUGHES INCORPORATED
发明人： Don Q. Nguyen , Carl E. Poteet , Eric C. Sullivan , John F. Bradford , Mark P. Blackman , Alan J. Massey , Gregory L. Ricks
IPC分类号： E21B10/08 , B23K33/00 , B23K31/02 , E21B10/14 , E21B10/20
CPC分类号： B23K31/02 , E21B10/14 , E21B10/20
摘要： A method of improving the service life of a drill bit comprises creating a weldment between load bearing portions of the drill bit where the weldment has a preselected root gap greater than about 25 mils and a preselected root face greater than about 25 mils, and where the weldment has a material property greater than the materials being joined.

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