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1. 发明申请

WO2014065797A1 TORQUE TRANSFER MECHANISM FOR DOWNHOLE DRILLING TOOLS 审中-公开
标题翻译：井下钻孔工具的转矩传递机理
公开(公告)号：WO2014065797A1
公开(公告)日：2014-05-01
申请号：PCT/US2012/061789
申请日：2012-10-25
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： AGARWAL, Puneet , GAIKWAD, Rahul, R. , GAJJI, Bhargav
IPC分类号： E21B4/10 , E21B6/00
CPC分类号： E21B4/00 , E21B4/02 , E21B7/00
摘要： A well tool drilling tool can include a torque transfer mechanism with an inner mandrel, an outer housing, and at least one pawl which displaces radially and thereby selectively permits and prevents relative rotation between the inner mandrel and the outer housing. A drill string can include a drill bit, a drilling motor, and a torque transfer mechanism which permits rotation of the drill bit in only one direction relative to the drilling motor, the torque transfer mechanism including at least one pawl which displaces linearly and thereby prevents rotation of the drill bit in an opposite direction relative to the drilling motor.
摘要翻译：井具钻具可以包括具有内心轴，外壳和至少一个棘爪的转矩传递机构，其中径向移位，从而选择性地允许和防止内心轴和外壳之间的相对旋转。钻柱可以包括钻头，钻孔马达和转矩传递机构，其允许相对于钻孔马达在一个方向上旋转钻头，扭矩传递机构包括至少一个直线位移的棘爪，从而防止钻头相对于钻孔马达在相反方向的旋转。

2. 发明申请

WO2014137330A1 ROLL REDUCTION SYSTEM FOR ROTARY STEERABLE SYSTEM 审中-公开
标题翻译：滚动可转向系统的滚筒减速系统
公开(公告)号：WO2014137330A1
公开(公告)日：2014-09-12
申请号：PCT/US2013/029194
申请日：2013-03-05
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GAJJI , Bhargav , GAIKWAD, Rahul, Ramchandra , AGARWAL, Puneet
IPC分类号： E21B7/08 , E21B17/02
CPC分类号： E21B4/006 , E21B7/062 , E21B7/068 , E21B17/1078
摘要： Roll reduction system for rotary steerable system. A well drilling system includes a tubular housing that attaches inline in a drill string and a bit drive shaft supported to rotate in the housing by a roll reduction system. The roll reduction system includes a first gear carried by the housing to rotate relative to the housing and coupled to rotate with the bit drive shaft, and a second gear carried by the housing to rotate relative to the housing and coupled to the first gear to rotate in an opposite direction to the first gear.
摘要翻译：用于旋转导向系统的减速系统钻井系统包括管状壳体，其嵌入钻柱中，并且钻头驱动轴被支撑以通过辊缩减系统在壳体中旋转。滚动减速系统包括由壳体承载的第一齿轮，以相对于壳体旋转并联接成与钻头驱动轴一起旋转，第二齿轮由壳体承载以相对于壳体旋转并联接到第一齿轮以旋转在与第一档相反的方向上。

3. 发明申请

WO2014105072A1 DOWNHOLE DRILLING ASSEMBLY HAVING A HYDRAULICALLY ACTUATED CLUTCH AND METHOD FOR USE OF SAME 审中-公开
标题翻译：具有液压执行离合器的井下钻孔组件及其使用方法
公开(公告)号：WO2014105072A1
公开(公告)日：2014-07-03
申请号：PCT/US2012/072207
申请日：2012-12-29
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GAIKWAD, Rahul, Ramchandra , AGARWAL, Puneet
IPC分类号： E21B4/02 , E21B4/10
CPC分类号： E21B7/002 , E21B3/00 , E21B4/02 , E21B7/04 , E21B17/04
摘要： A downhole drilling assembly includes a drill string having an inner fluid passageway. A fluid motor disposed within the drill string has a rotor operable to rotate relative to a stator in response to a circulating fluid received via the inner fluid passageway. A drive shaft and drill bit are operably associated with and operable to rotate with the rotor. A hydraulically actuated clutch disposed within the drill string has a first configuration, wherein a first clutch assembly is disengaged from a second clutch assembly such that the drive shaft and drill bit rotate relative to the drill string and, a second configuration, wherein the first clutch assembly engages the second clutch assembly responsive to hydraulic pressure generated by rotation of the drill string such that the drive shaft and drill bit rotate with the drill string.
摘要翻译：井下钻井组件包括具有内部流体通道的钻柱。布置在钻柱内的流体马达具有可操作以响应于经由内部流体通道接收的循环流体而相对于定子旋转的转子。驱动轴和钻头可操作地与转子相关联并且可操作地与转子一起旋转。设置在钻柱内的液压致动的离合器具有第一构造，其中第一离合器组件与第二离合器组件分离，使得驱动轴和钻头相对于钻柱旋转;以及第二构造，其中第一离合器组合件响应于由钻柱的旋转而产生的液压而接合第二离合器组件，使得驱动轴和钻头与钻柱一起旋转。

4. 发明申请

WO2015102584A1 DIRECTIONAL DRILLING SYSTEM AND METHODS 审中-公开
标题翻译：方向钻井系统及方法
公开(公告)号：WO2015102584A1
公开(公告)日：2015-07-09
申请号：PCT/US2013/078353
申请日：2013-12-30
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GAJJI, Bhargav , AGARWAL, Puneet , GAIKWAD, Rahul, Ramchandra
IPC分类号： E21B7/08 , E21B17/03
CPC分类号： E21B7/067 , E21B3/00 , E21B4/00 , E21B47/024 , E21B47/18 , E21B49/00
摘要： A directional drilling steering system is configured to direct a tubular sleeve arranged at the bottom of a drill string adjacent the drill bit at a selected tilt angle with respect to the longitudinal axis of the uphole drill string and at a selected azimuth. Tilt angle can be achieved by axial movement of one or more pistons in engagement with the downhole tubular sleeve. Azimuth can be achieved by axial movement of the pistons or by rotation of the drill string. The movement of the downhole sleeve along the deviated path causes movement of the drill bit shaft and the drill bit coupled thereto.
摘要翻译：定向钻井转向系统被构造成将相对于钻井钻柱的纵向轴线以选定的倾斜角度布置在钻柱的底部处的管状套筒相对于钻头引导到选定的方位角。倾斜角可以通过一个或多个活塞与井下管状套筒接合的轴向运动来实现。方位角可以通过活塞的轴向运动或通过钻柱的旋转来实现。井下套筒沿着偏斜路径的移动导致钻头轴和与其相连的钻头的运动。

5. 发明申请

WO2015005907A1 METHODS AND APPARATUS FOR MITIGATING DOWNHOLE TORSIONAL VIBRATION 审中-公开
标题翻译：用于减轻井筒扭转振动的方法和装置
公开(公告)号：WO2015005907A1
公开(公告)日：2015-01-15
申请号：PCT/US2013/049707
申请日：2013-07-09
申请人： HALLIBURTON ENERGY SERVICES, INC.
发明人： GAJJI, Bhargav , GAIKWAD, Rahul Ramchandra , AGARWAL, Puneet
IPC分类号： E21B17/10
CPC分类号： E21B17/1057 , E21B17/07 , E21B17/1078 , E21B19/24 , E21B47/12
摘要： A well tool apparatus for damping torsional vibration of a drill string comprises stabilizing members projecting radially outwards from a housing that is, in operation, rotationally integrated in the drill string, to stabilize the drill string by engagement with a borehole wall. The stabilizing members are displaceably mounted on the housing to permit limited angular movement thereof relative to the housing about its rotational axis. The well tool apparatus includes a hydraulic damping mechanism to damp angular displacement of the stabilizing members relative to the housing, thereby damping torsional vibration of the housing and the connected drill string, in use.
摘要翻译：用于减轻钻柱的扭转振动的良好的工具装置包括稳定构件，该构件从操作中的旋转地集成在钻柱中的壳体径向向外突出，以通过与钻孔壁接合来稳定钻柱。稳定构件可移动地安装在壳体上，以允许其围绕其旋转轴线相对于壳体的有限的角度运动。井具装置包括液压阻尼机构，用于阻止稳定构件相对于壳体的角位移，从而在使用中阻止壳体和连接的钻柱的扭转振动。

6. 发明公开

EP2917447A1 DOWNHOLE DRILLING ASSEMBLY HAVING A HYDRAULICALLY ACTUATED CLUTCH AND METHOD FOR USE OF SAME 审中-公开
标题翻译： BOHRLOCHBOHRVORRICHTUNG有液压式离合器及其方法使用
公开(公告)号：EP2917447A1
公开(公告)日：2015-09-16
申请号：EP12891283.9
申请日：2012-12-29
申请人： Halliburton Energy Services, Inc.
发明人： GAIKWAD, Rahul, Ramchandra , AGARWAL, Puneet
IPC分类号： E21B4/02 , E21B4/10
CPC分类号： E21B7/002 , E21B3/00 , E21B4/02 , E21B7/04 , E21B17/04
摘要： A downhole drilling assembly includes a drill string having an inner fluid passageway. A fluid motor disposed within the drill string has a rotor operable to rotate relative to a stator in response to a circulating fluid received via the inner fluid passageway. A drive shaft and drill bit are operably associated with and operable to rotate with the rotor. A hydraulically actuated clutch disposed within the drill string has a first configuration, wherein a first clutch assembly is disengaged from a second clutch assembly such that the drive shaft and drill bit rotate relative to the drill string and, a second configuration, wherein the first clutch assembly engages the second clutch assembly responsive to hydraulic pressure generated by rotation of the drill string such that the drive shaft and drill bit rotate with the drill string.

7. 发明公开

EP2880242A1 TORQUE TRANSFER MECHANISM FOR DOWNHOLE DRILLING TOOLS 审中-公开
标题翻译：扭矩传递机理的井具
公开(公告)号：EP2880242A1
公开(公告)日：2015-06-10
申请号：EP12887181.1
申请日：2012-10-25
申请人： Halliburton Energy Services, Inc.
发明人： AGARWAL, Puneet , GAIKWAD, Rahul, R. , GAJJI, Bhargav
IPC分类号： E21B4/10 , E21B6/00
CPC分类号： E21B4/00 , E21B4/02 , E21B7/00
摘要： A well tool drilling tool can include a torque transfer mechanism with an inner mandrel, an outer housing, and at least one pawl which displaces radially and thereby selectively permits and prevents relative rotation between the inner mandrel and the outer housing. A drill string can include a drill bit, a drilling motor, and a torque transfer mechanism which permits rotation of the drill bit in only one direction relative to the drilling motor, the torque transfer mechanism including at least one pawl which displaces linearly and thereby prevents rotation of the drill bit in an opposite direction relative to the drilling motor.

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