公开(公告)号：US20090294173A1

公开(公告)日：2009-12-03

申请号：US12129540

申请日：2008-05-29

申请人： Tommy Laird ,  Gordon Whipple

发明人： Tommy Laird ,  Gordon Whipple

IPC分类号： E21B12/02

CPC分类号： E21B12/02

摘要： An expandable underreamer apparatus disposed on a distal end of a drillstring and configured to drill a formation includes a substantially tubular main body adjacent a cutting head, the main body providing at least one axial recess configured to receive an arm assembly, and the arm assembly configured to translate between a retracted position and an extended position. The apparatus further includes a plurality of cutting elements disposed on the arm assembly, and a plurality of wear indicators imbedded in at least one arm assembly and positioned behind the cutting elements with respect to a direction of rotation of the arm assembly, wherein the wear indicators are configured to provide an increased torque to the drillstring upon contacting the formation.

摘要翻译： 设置在钻柱的远端并被构造成钻孔地层的可膨胀的扩孔器装置包括与切割头相邻的基本上管状的主体，主体提供至少一个轴向凹部，其被构造成接收臂组件，并且臂组件被配置 以在缩回位置和延伸位置之间平移。 该装置还包括设置在臂组件上的多个切割元件和嵌入在至少一个臂组件中并相对于臂组件的旋转方向定位在切割元件后面的多个磨损指示器，其中磨损指示器 构造成在接触地层时向钻柱提供增加的扭矩。

公开(公告)号：US20110232969A1

公开(公告)日：2011-09-29

申请号：US12748012

申请日：2010-03-26

申请人： Tommy Laird ,  Richard C. Davis

发明人： Tommy Laird ,  Richard C. Davis

IPC分类号： E21B10/32 ,  E21B7/28 ,  E21B17/10

CPC分类号： E21B10/322 ,  E21B23/04

摘要： A downhole tool including a tubular body having an upper connection and a lower connection and an axial borehole therethrough, wherein the upper and lower connections are configured to connect to a drilling assembly, at least one expandable component coupled to the tubular body and configured to selectively extend radially therefrom, and an actuation assembly configured to selectively actuate, deactuate, and reactuate the at least one component. A method of selectively actuating a downhole tool, wherein the downhole tool comprises a tubular body with an axial borehole therethrough and at least one component, the method including circulating a drilling fluid in the axial borehole of the downhole tool, actuating the at least one component, deactuating the at least one component, and reactuating the at least one component. An actuation assembly including a mandrel having an actuation chamber port, at least one drop device, a piston disposed within the mandrel and configured to move to open the actuation chamber port, at least one dart, a sleeve disposed within the mandrel and configured to move to close the actuation chamber port; and at least one biasing member configured to exert a force on the sleeve in an upstream direction.

摘要翻译： 一种井下工具，其包括具有上部连接件和下部连接件以及穿过其中的轴向钻孔的管状主体，其中所述上部和下部连接件构造成连接到钻孔组件，所述至少一个可扩张部件联接到所述管状主体并且被配置为选择性地 以及致动组件，其构造成选择性地致动，停用并且对所述至少一个部件进行反应。 一种选择性地致动井下工具的方法，其中所述井下工具包括具有穿过其中的轴向钻孔的管状主体和至少一个部件，所述方法包括使井下工具的轴向钻孔中的钻井流体循环，致动所述至少一个部件 ，去除所述至少一种组分，以及使所述至少一种组分反应。 一种致动组件，包括具有致动室端口的心轴，至少一个液滴装置，设置在所述心轴内并被配置为移动以打开所述致动室端口的活塞，至少一个飞镖，设置在所述心轴内并配置成移动 关闭致动室端口; 以及至少一个偏置构件，构造成在上游方向上在套筒上施加力。

公开(公告)号：US08381837B2

公开(公告)日：2013-02-26

申请号：US12748012

申请日：2010-03-26

申请人： Tommy Laird ,  Richard C. Davis

发明人： Tommy Laird ,  Richard C. Davis

IPC分类号： E21B10/32

CPC分类号： E21B10/322 ,  E21B23/04

摘要： A downhole tool including a tubular body having an upper connection and a lower connection and an axial borehole therethrough, wherein the upper and lower connections are configured to connect to a drilling assembly, at least one expandable component coupled to the tubular body and configured to selectively extend radially therefrom, and an actuation assembly configured to selectively actuate, deactuate, and reactuate the at least one component. A method of selectively actuating a downhole tool, wherein the downhole tool comprises a tubular body with an axial borehole therethrough and at least one component, the method including circulating a drilling fluid in the axial borehole of the downhole tool, actuating the at least one component, deactuating the at least one component, and reactuating the at least one component. An actuation assembly including a mandrel having an actuation chamber port, at least one drop device, a piston disposed within the mandrel and configured to move to open the actuation chamber port, at least one dart, a sleeve disposed within the mandrel and configured to move to close the actuation chamber port; and at least one biasing member configured to exert a force on the sleeve in an upstream direction.

摘要翻译： 一种井下工具，其包括具有上部连接件和下部连接件以及穿过其中的轴向钻孔的管状主体，其中所述上部和下部连接件构造成连接到钻孔组件，所述至少一个可扩张部件联接到所述管状主体并且被配置为选择性地 以及致动组件，其构造成选择性地致动，停用并且对所述至少一个部件进行反应。 一种选择性地致动井下工具的方法，其中所述井下工具包括具有穿过其中的轴向钻孔的管状主体和至少一个部件，所述方法包括使井下工具的轴向钻孔中的钻井流体循环，致动所述至少一个部件 ，去除所述至少一种组分，以及使所述至少一种组分反应。 一种致动组件，包括具有致动室端口的心轴，至少一个液滴装置，设置在所述心轴内并被配置为移动以打开所述致动室端口的活塞，至少一个飞镖，设置在所述心轴内并配置成移动 关闭致动室端口; 以及至少一个偏置构件，构造成在上游方向上在套筒上施加力。

公开(公告)号：US20090114448A1

公开(公告)日：2009-05-07

申请号：US11933954

申请日：2007-11-01

申请人： Tommy Laird ,  Gail R. Nelson ,  David William Rodman

发明人： Tommy Laird ,  Gail R. Nelson ,  David William Rodman

IPC分类号： E21B7/28

CPC分类号： E21B10/34

摘要： An expandable downhole tool for use in a drilling assembly positioned within a wellbore includes a tool body having an axial flowbore extending therethrough and a moveable arm. The moveable arm includes a roller structure including cutters and rotatably mounted on the moveable arm. The moveable arm is configured to move outwardly in response to actuation of the expandable downhole tool.

摘要翻译： 用于位于井眼内的钻井组件中的可扩展井下工具包括具有延伸穿过其中的轴向流动孔和可移动臂的工具主体。 可动臂包括一个包括切割器并可旋转地安装在可移动臂上的滚子结构。 可移动臂被配置为响应于可扩展井下工具的致动向外移动。