公开(公告)号：US20160032710A1

公开(公告)日：2016-02-04

申请号：US14777078

申请日：2014-03-13

申请人： SMITH INTERNATIONAL, INC.

发明人： Jianbing Hu ,  James Layne Larsen ,  Tommy G. Ray ,  Dwayne P. Terracina ,  Rui Gao ,  Jennifer L. Pereira ,  Weixiong Wang ,  Ming Zhang ,  Zhenbi Su ,  Baozhong Yang ,  Siqi Xu ,  Sudarsanam Chellappa ,  Vishal Saheta ,  Robert Utter

IPC分类号： E21B47/08

CPC分类号： E21B47/08

摘要： A downhole tool is disclosed for measuring wellbore geometry. The downhole tool may include a body with a bore extending at least partially therethrough. The body may include a radial recess. An arm may be movably coupled to the body at a first end portion of the arm. The arm may be within the radial recess in a retracted position and be pivotable in a radially-outward direction relative to the body to an expanded position. A measurement device coupled to the body may measure the pivoting motion of the arm. A piston coupled to the body may be movably coupled to a second end portion of the arm, and the piston may respond to changes in hydraulic pressure to pivot the arm between the retracted position and the expanded position.

摘要翻译： 公开了用于测量井筒几何形状的井下工具。 井下工具可以包括具有至少部分地穿过其延伸的孔的主体。 主体可以包括径向凹槽。 臂可以在臂的第一端部处可移动地联接到主体。 臂可以处于缩回位置的径向凹槽内，并且可以在相对于主体的径向向外的方向上枢转到扩展位置。 耦合到身体的测量装置可以测量臂的枢转运动。 联接到主体的活塞可以可移动地联接到臂的第二端部，并且活塞可以响应于液压的变化，以使臂在缩回位置和展开位置之间枢转。

公开(公告)号：US09243457B2

公开(公告)日：2016-01-26

申请号：US13797354

申请日：2013-03-12

申请人： Smith International, Inc.

发明人： Jianbing Hu

IPC分类号： E21B10/32

CPC分类号： E21B10/327 ,  E21B7/28 ,  E21B10/32 ,  E21B10/322

摘要： An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.

摘要翻译： 用于增加井筒直径的扩孔器。 该扩孔器包括具有延伸至少部分穿过其中的轴向孔的主体。 套筒被布置和设计成在身体内移动第一轴向距离。 切割块可移动地联接到主体。 刀块被布置和设计成相对于主体至少移动第一轴向距离，以响应于孔中的液压而接触套筒。 当切割器块移动第一轴向距离时，切割器块从第一外径移动到第二外径。

公开(公告)号：US20150014061A1

公开(公告)日：2015-01-15

申请号：US14497455

申请日：2014-09-26

申请人： Smith International, Inc.

发明人： Jian Wu ,  Jianbing Hu ,  Dwayne P. Terracina ,  Tommy G. Ray

IPC分类号： E21B34/06 ,  E21B7/28

CPC分类号： E21B34/06 ,  E21B7/28 ,  E21B10/32 ,  E21B23/006

摘要： A downhole tool assembly is configured for repeated and selective hydraulic actuation and deactuation. A piston assembly is configured to reciprocate axially in a downhole tool body. The piston assembly reciprocates between a first axial position and second and third axial positions that axially oppose the first position. The downhole tool is actuated when the piston assembly is in the third axial position and deactuated when the piston assembly is in either of the first or second axial positions. A spring member biases the piston assembly towards the first axial position while drilling fluid pressure in the tool body urges the piston assembly towards the second and third axial positions. Downhole tool actuation and deactuation may be controlled from the surface, for example, via cycling the drilling fluid flow rate.

摘要翻译： 井下工具组件被配置为用于重复和选择性的液压致动和停用。 活塞组件构造成在井下工具体中轴向往复运动。 活塞组件在轴向相对于第一位置的第一轴向位置和第二和第三轴向位置之间往复运动。 当活塞组件处于第三轴向位置时，井下工具被致动，并且当活塞组件处于第一或第二轴向位置时，井下工具被致动。 弹簧构件朝向第一轴向位置偏压活塞组件，同时在工具体内钻出流体压力，迫使活塞组件朝向第二和第三轴向位置。 例如，可以通过循环钻井液的流速从表面控制井下工具致动和停用。

公开(公告)号：US20140353041A1

公开(公告)日：2014-12-04

申请号：US14461157

申请日：2014-08-15

申请人： Smith International, Inc.

发明人： Jianbing Hu

IPC分类号： E21B4/02

CPC分类号： E21B10/322 ,  E21B4/02 ,  E21B21/103 ,  E21B23/006

摘要： A method of drilling a wellbore with a downhole tool having a cam piston, and a rotary piston includes providing a first flow of fluid to the downhole tool. The first flow of fluid causes the cam piston to move axially downward, thereby rotating a rotary valve of the rotary piston, which in turn places the downhole tool in a compressed position to activate a secondary tool. Next the formation may be drilled with the downhole tool in a compressed position. A second flow of fluid may be provided to the downhole tool to move the cam piston axially downward thereby rotating the rotary valve and deactivating the secondary tool.

摘要翻译： 用具有凸轮活塞的井下工具和旋转活塞钻井的方法包括向井下工具提供第一流体流。 第一流体流动使得凸轮活塞轴向向下移动，从而旋转旋转活塞的旋转阀，这进而将井下工具放置在压缩位置以启动辅助工具。 接下来，可以用井下工具在压缩位置钻出地层。 第二流体流可以被提供到井下工具以使凸轮活塞轴向向下移动，从而旋转旋转阀并使辅助工具停用。

公开(公告)号：US09988852B2

公开(公告)日：2018-06-05

申请号：US14972583

申请日：2015-12-17

申请人： SMITH INTERNATIONAL, INC.

发明人： Jianbing Hu

IPC分类号： E21B10/32 ,  E21B7/28

CPC分类号： E21B10/327 ,  E21B7/28 ,  E21B10/32 ,  E21B10/322

摘要： An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.

公开(公告)号：US20160102502A1

公开(公告)日：2016-04-14

申请号：US14972583

申请日：2015-12-17

申请人： SMITH INTERNATIONAL, INC.

发明人： Jianbing Hu

IPC分类号： E21B10/32 ,  E21B7/28

CPC分类号： E21B10/327 ,  E21B7/28 ,  E21B10/32 ,  E21B10/322

摘要： An underreamer for increasing a diameter of a wellbore. The underreamer includes a body having an axial bore extending at least partially therethrough. A sleeve is arranged and designed to move a first axial distance within the body. A cutter block is movably coupled to the body. The cutter block is arranged and designed to move at least the first axial distance with respect to the body to contact the sleeve in response to hydraulic pressure in the bore. The cutter block moves from a first outer diameter to a second outer diameter as the cutter block moves the first axial distance.

摘要翻译： 用于增加井筒直径的扩孔器。 该扩孔器包括具有延伸至少部分穿过其中的轴向孔的主体。 套筒被布置和设计成在身体内移动第一轴向距离。 切割块可移动地联接到主体。 刀块被布置和设计成相对于主体至少移动第一轴向距离，以响应于孔中的液压而接触套筒。 当切割器块移动第一轴向距离时，切割器块从第一外径移动到第二外径。

公开(公告)号：US20150114716A1

公开(公告)日：2015-04-30

申请号：US14497413

申请日：2014-09-26

申请人： Smith International, Inc.

发明人： Baozhong Yang ,  Tommy G. Ray ,  Jianbing Hu ,  Zhenbi Su ,  Dwayne P. Terracina ,  Xin Hu

IPC分类号： E21B7/24 ,  E21B17/10 ,  E21B34/14

CPC分类号： E21B7/24 ,  E21B28/00

摘要： Various implementations described herein are directed to a vibration tool, e.g., for use in drilling or other downhole operations. In one implementation, the vibration tool may include a housing having a bore extending therethrough. The vibration tool may also include a piston subassembly positioned inside the bore, where the piston subassembly is configured to oscillate when fluid flow inside the piston subassembly exceeds a predetermined flow rate. The vibration tool may further include a valve mechanism positioned around the piston subassembly, where the valve mechanism is configured to restrict fluid to flow inside the piston subassembly when the valve mechanism is in a closed state and configured to allow the fluid to flow from the piston subassembly to the bore when the valve mechanism is in an open state.

摘要翻译： 本文描述的各种实施例涉及振动工具，例如用于钻井或其它井下操作。 在一个实施方案中，振动工具可以包括具有延伸穿过其中的孔的壳体。 振动工具还可以包括定位在孔内的活塞子组件，其中当活塞子组件内的流体流超过预定流量时，活塞子组件被配置为振荡。 所述振动工具还可以包括围绕所述活塞子组件定位的阀机构，其中所述阀机构构造成在所述阀机构处于关闭状态时限制流体在所述活塞子组件内流动并且构造成允许所述流体从所述活塞 当阀机构处于打开状态时，子组件到孔中。