| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 切削混合钻头和其它井下切削工具 | CN201280008571.9 | 2012-02-10 | CN103842607B | 2016-08-31 | 迈克尔·G·阿扎; 芭拉·杜赖拉杰恩; 马达普斯·K·克沙凡恩 |
| 地球地层中钻井眼的钻头可以包括：具有钻头轴线和钻头端面的钻头体；沿着所述钻头端面径向延伸的多个刀片；和设置在所述多个刀片上的多个切削元件，所述多个切削元件包括：包括衬底和金刚石台面的至少一个牙轮，所述金刚石台面具有大致平坦切削面；和包括衬底和金刚石层的至少两个圆锥形切削元件，所述金刚石层具有圆锥形切削刃，其中在所述多个切削元件旋转到单个平面中的视图中，所述至少一个牙轮位于远离所述钻头轴线的径向位置，所述径向位置在所述至少两个圆锥形切削元件的径向位置之间。 | ||||||
| 2 | 水压致裂正交组合双刃切槽钻头 | CN201610460034.8 | 2016-06-23 | CN105952384A | 2016-09-21 | 于斌; 段宏飞; 高瑞; 匡铁军; 孟祥斌; 胡维 |
| 本发明涉及煤矿水压致裂处理顶板所用的切槽钻头，具体为水压致裂正交组合双刃切槽钻头。解决现有切槽钻头只有一对切槽刃具及切槽刃具易断裂的问题。本发明所述的切槽钻头，使用了两组正交的切槽刃具，在打好的钻孔壁上可以同时凿切出两个V行沟槽，与普通的切槽钻头相比，效率提高了一倍；两组刀刃切割后可形成两组环形裂缝，不仅提高了切槽刀刃切缝的稳定性、可靠性，同时保证了水压致裂的破坏范围和半径，达到了弱化煤岩的作用，保证并提高了水压致裂的效果和强度，是实现定向水压致裂的有效凿岩设备；两组切槽刃具呈正交方位布置，合理利用了有限的空间；结构简单、易于制造、成本低廉、使用方便、可靠。 | ||||||
| 3 | 切削混合钻头和其它井下切削工具 | CN201280008571.9 | 2012-02-10 | CN103842607A | 2014-06-04 | 迈克尔·G·阿扎; 芭拉·杜赖拉杰恩; 马达普斯·K·克沙凡恩 |
| 地球地层中钻井眼的钻头可以包括：具有钻头轴线和钻头端面的钻头体；沿着所述钻头端面径向延伸的多个刀片；和设置在所述多个刀片上的多个切削元件，所述多个切削元件包括：包括衬底和金刚石台面的至少一个牙轮，所述金刚石台面具有大致平坦切削面；和包括衬底和金刚石层的至少两个圆锥形切削元件，所述金刚石层具有圆锥形切削刃，其中在所述多个切削元件旋转到单个平面中的视图中，所述至少一个牙轮位于远离所述钻头轴线的径向位置，所述径向位置在所述至少两个圆锥形切削元件的径向位置之间。 | ||||||
| 4 | 用于固定齿钻头的切削结构和其它井下切削工具 | CN201280008587.X | 2012-02-10 | CN103827435B | 2016-08-10 | 迈克尔·G·阿扎; 芭拉·杜赖拉杰恩; 马达普斯·K·克沙凡恩 |
| 井下切削工具可以包括：工具本体；从工具本体方位角地延伸的多个刀片；和设置在多个刀片上的多个切削元件，所述多个切削元件包括具有衬底和金刚石层的至少两个圆锥形切削元件，所述金刚石层具有圆锥形切削刃，其中所述至少两个圆锥形切削元件中的至少一个具有正后倾角，以及所述至少两个圆锥形切削元件中的至少一个具有负后倾角。 | ||||||
| 5 | 用于固定齿钻头的切削结构和其它井下切削工具 | CN201280008587.X | 2012-02-10 | CN103827435A | 2014-05-28 | 迈克尔·G·阿扎; 芭拉·杜赖拉杰恩; 马达普斯·K·克沙凡恩 |
| 井下切削工具可以包括：工具本体；从工具本体方位角地延伸的多个刀片；和设置在多个刀片上的多个切削元件，所述多个切削元件包括具有衬底和金刚石层的至少两个圆锥形切削元件，所述金刚石层具有圆锥形切削刃，其中所述至少两个圆锥形切削元件中的至少一个具有正后倾角，以及所述至少两个圆锥形切削元件中的至少一个具有负后倾角。 | ||||||
| 6 | Earth-boring tools including passively adjustable, aggressiveness-modifying members and related methods | US14973282 | 2015-12-17 | US10094174B2 | 2018-10-09 | Jayesh Rameshlal Jain; Chaitanya K. Vempati; Gregory L. Ricks; Juan Miguel Bilen |
| 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 | KERFING HYBRID DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS | US15948808 | 2018-04-09 | US20180230756A1 | 2018-08-16 | Michael George Azar; Balasubramanian Durairajan; Madapusi Keshavan |
| A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least one cutter comprising a substrate and a diamond table having a substantially planar cutting face; and at least two non-planar cutting elements comprising a substrate and a diamond layer having a non-planar cutting end, wherein in a rotated view of the plurality of cutting elements into a single plane, the at least one cutter is located a radial position from the bit axis that is intermediate the radial positions of the at least two non-planar cutting elements. | ||||||
| 8 | EARTH-BORING TOOLS INCLUDING PASSIVELY ADJUSTABLE, AGRESSIVENESS-MODIFYING MEMBERS AND RELATED METHODS | US14973282 | 2015-12-17 | US20170175455A1 | 2017-06-22 | Jayesh Rameshlal Jain; Chaitanya K. Vempati; Gregory L. Ricks; Juan Miguel Bilen |
| 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. | ||||||
| 9 | ACTIVELY CONTROLLED SELF-ADJUSTING BITS AND RELATED SYSTEMS AND METHODS | US14851117 | 2015-09-11 | US20170074047A1 | 2017-03-16 | Jayesh Rameshlal Jain |
| An actively controlled 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, and a reciprocating member dividing the first fluid chamber from the second fluid chamber. A connection member may be attached to the reciprocating member and may have a drilling or bearing element connected 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. A rate controller may control a flowrate of a hydraulic fluid through the first and second fluid flow path. The rate controller may include an electromagnet, and the flowrates of the hydraulic fluid may be adjusted by adjusting fluid properties of the hydraulic fluid. | ||||||
| 10 | KERFING HYBRID DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS | US13370734 | 2012-02-10 | US20120205163A1 | 2012-08-16 | Michael G. Azar; Bala Durairajan; Madapusi K. Keshavan |
| A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least one cutter comprising a substrate and a diamond table having a substantially planar cutting face; and at least two conical cutting elements comprising a substrate and a diamond layer having a conical cutting end, wherein in a rotated view of the plurality of cutting elements into a single plane, the at least one cutter is located a radial position from the bit axis that is intermediate the radial positions of the at least two conical cutting elements. | ||||||
| 11 | Actively controlled self-adjusting bits and related systems and methods | US14851117 | 2015-09-11 | US10041305B2 | 2018-08-07 | Jayesh Rameshlal Jain |
| An actively controlled 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, and a reciprocating member dividing the first fluid chamber from the second fluid chamber. A connection member may be attached to the reciprocating member and may have a drilling or bearing element connected 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. A rate controller may control a flowrate of a hydraulic fluid through the first and second fluid flow paths. The rate controller may include an electromagnet, and the flowrates of the hydraulic fluid may be adjusted by adjusting fluid properties of the hydraulic fluid. | ||||||
| 12 | Drill bit with self-adjusting pads | US14864436 | 2015-09-24 | US10000977B2 | 2018-06-19 | Jayesh R. Jain; Benjamin Baxter; Chaitanya K. Vempati; Steven R. Radford; Volker Peters; Gregory L. Ricks; Miguel Bilen; Holger Stibbe; David A. Curry |
| 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. | ||||||
| 13 | Drill bit with self-adjusting pads | US14516340 | 2014-10-16 | US09708859B2 | 2017-07-18 | Jayesh R. Jain; Benjamin Baxter; Chaitanya Vempati; Steven Radford; Gregory L. Ricks; Miguel Bilen; Holger Stibbe; Volker Peters |
| A drill bit includes 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 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. | ||||||
| 14 | DRILL BIT WITH SELF-ADJUSTING PADS | US14516340 | 2014-10-16 | US20150191979A1 | 2015-07-09 | Jayesh R. Jain; Benjamin Baxter; Chaitanya Vempati; Steven Radford; Gregory L. Ricks; Miguel Bilen; Holger Stibbe; Volker Peters |
| 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. | ||||||
| 15 | CUTTING STRUCTURES FOR FIXED CUTTER DRILL BIT AND OTHER DOWNHOLE CUTTING TOOLS | US13826193 | 2013-03-14 | US20130277120A1 | 2013-10-24 | Michael G. Azar; Bala Durairajan; Madapusi K. Keshavan |
| A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least two non-planar cutting elements comprising a substrate and a diamond layer having a non-planar cutting end, wherein at least one of the at least two conical cutting elements has a positive back rake angle or positive side rake angle, and at least one of the at least two non-planar cutting elements has a negative back rake angle or a negative side rake angle. | ||||||
| 16 | ACTIVELY CONTROLLED SELF-ADJUSTING BITS AND RELATED SYSTEMS AND METHODS | EP16845132.6 | 2016-09-09 | EP3347560A1 | 2018-07-18 | JAIN, Jayesh, Rameshlal |
| An actively controlled 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, and a reciprocating member dividing the first fluid chamber from the second fluid chamber. A connection member may be attached to the reciprocating member and may have a drilling or bearing element connected 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. A rate controller may control a flowrate of a hydraulic fluid through the first and second fluid flow path. The rate controller may include an electromagnet, and the flowrates of the hydraulic fluid may be adjusted by adjusting fluid properties of the hydraulic fluid. | ||||||
| 17 | DRILL BIT WITH SELF-ADJUSTING PADS | EP14785132.3 | 2014-04-17 | EP2986804A1 | 2016-02-24 | JAIN, Jayesh, R.; BILEN, Juan Miguel |
| In one aspect, a drill bit is disclosed that in one embodiment includes a bit body and a pad that extends from a retracted position to an extended position from a bit surface at a first rate and retracts from the extended position to a retracted position at a second rate that is less than the first rate. | ||||||
| 18 | EARTH-BORING TOOLS INCLUDING PASSIVELY ADJUSTABLE, AGRESSIVENESS-MODIFYING MEMBERS AND RELATED METHODS | US14973282 | 2015-12-17 | US20180179826A9 | 2018-06-28 | Jayesh Rameshlal Jain; Chaitanya K. Vempati; Gregory L. Ricks; Juan Miguel Bilen |
| 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. | ||||||
| 19 | Cutting structures for fixed cutter drill bit and other downhole cutting tools | US13370862 | 2012-02-10 | US09404312B2 | 2016-08-02 | Michael G. Azar; Bala Durairajan; Madapusi K. Keshavan |
| A downhole cutting tool may include a tool body; a plurality of blades extending azimuthally from the tool body; and a plurality of cutting elements disposed on the plurality of blades, the plurality of cutting elements comprising: at least two conical cutting elements comprising a substrate and a diamond layer having a conical cutting end, wherein at least one of the at least two conical cutting elements has a positive back rake angle, and at least one of the at least two conical cutting elements has a negative back rake angle. | ||||||
| 20 | Kerfing hybrid drill bit and other downhole cutting tools | US13370734 | 2012-02-10 | US09366090B2 | 2016-06-14 | Michael G. Azar; Bala Durairajan; Madapusi K. Keshavan |
| A drill bit for drilling a borehole in earth formations may include a bit body having a bit axis and a bit face; a plurality of blades extending radially along the bit face; and a plurality of cutting elements disposed on the plurality of blades. The plurality of cutting elements may include: at least one cutter including a substrate and a diamond table having a substantially planar cutting face; and at least two conical cutting elements including a substrate and a diamond layer having a conical cutting end. In a rotated view of the plurality of cutting elements into a single plane, the at least one cutter may be located a radial position from the bit axis that is intermediate the radial positions of the at least two conical cutting elements. | ||||||
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