公开(公告)号：US20100126711A1

公开(公告)日：2010-05-27

申请号：US12621169

申请日：2009-11-18

申请人： John BUSS ,  Charles William Donkin ,  Ian Hitchcock ,  William Peter Stuart Bruges ,  Roy Mowatt ,  James Ratcliffe ,  Anthony Webb

发明人： John BUSS ,  Charles William Donkin ,  Ian Hitchcock ,  William Peter Stuart Bruges ,  Roy Mowatt ,  James Ratcliffe ,  Anthony Webb

IPC分类号： E21B23/00

CPC分类号： E21B47/10 ,  E21B33/126

摘要： A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted into a stowed position substantially adjacent the tool body, or may be extended to meet the wall of the borehole. The arms are preferably resilient bowsprings that may be flexed outwards from the tool by means of an actuator pushing on at least one end of the springs. A flexible valve sleeve or bag is suspended between the arms and cooperates with a valve mounted adjacent the sleeve on the tool body. The valve sleeve creates a fluid-flow path through the valve, and in operation, the valve closes one end of the valve sleeve to create the pressure pulse. Sealing of the valve sleeve against the wall of the well is a result of the fluid pressure inflating the sleeve against the well wall. As a result, sealing takes place over an extended area of the bag and is dynamically responsive to changes in fluid flow or pressure.

摘要翻译： 公开了用于在流体填充的井中产生压力脉冲的调制器。 调制器包括一个工具主体，多个可伸缩臂安装在该工具主体上。 臂可以缩回到基本上邻近工具主体的收起位置，或者可以延伸以满足钻孔的壁。 臂优选地是弹性弓形，其可以通过推动弹簧的至少一端的致动器从工具向外弯曲。 柔性阀套或袋悬挂在臂之间并与安装在工具主体上的套筒相邻的阀配合。 阀套产生通过阀的流体流动路径，并且在操作中，阀关闭阀套的一端以产生压力脉冲。 将阀套密封在井的壁上是由于流体压力使套筒相对于井壁膨胀的结果。 结果，密封发生在袋的延伸区域上并且动态地响应于流体流动或压力的变化。

公开(公告)号：US08453744B2

公开(公告)日：2013-06-04

申请号：US12621169

申请日：2009-11-18

申请人： John Buss ,  Charles William Donkin ,  Ian Hitchcock ,  William Peter Stuart Bruges ,  Roy Mowatt ,  James Ratcliffe ,  Anthony Webb

发明人： John Buss ,  Charles William Donkin ,  Ian Hitchcock ,  William Peter Stuart Bruges ,  Roy Mowatt ,  James Ratcliffe ,  Anthony Webb

IPC分类号： E21B34/00 ,  E21B34/06

CPC分类号： E21B47/10 ,  E21B33/126

摘要： A modulator is disclosed for creating a pressure pulse in a fluid-filled well. The modulator comprises a tool body on which a plurality of extendable arms are mounted. The arms may be retracted into a stowed position substantially adjacent the tool body, or may be extended to meet the wall of the borehole. The arms are preferably resilient bowsprings that may be flexed outwards from the tool by means of an actuator pushing on at least one end of the springs. A flexible valve sleeve or bag is suspended between the arms and cooperates with a valve mounted adjacent the sleeve on the tool body. The valve sleeve creates a fluid-flow path through the valve, and in operation, the valve closes one end of the valve sleeve to create the pressure pulse. Sealing of the valve sleeve against the wall of the well is a result of the fluid pressure inflating the sleeve against the well wall. As a result, sealing takes place over an extended area of the bag and is dynamically responsive to changes in fluid flow or pressure.

摘要翻译： 公开了用于在流体填充的井中产生压力脉冲的调制器。 调制器包括一个工具主体，多个可伸缩臂安装在该工具主体上。 臂可以缩回到基本上邻近工具主体的收起位置，或者可以延伸以满足钻孔的壁。 臂优选地是弹性弓形，其可以通过推动弹簧的至少一端的致动器从工具向外弯曲。 柔性阀套或袋悬挂在臂之间并与安装在工具主体上的套筒相邻的阀配合。 阀套产生通过阀的流体流动路径，并且在操作中，阀关闭阀套的一端以产生压力脉冲。 将阀套密封在井的壁上是由于流体压力使套筒相对于井壁膨胀的结果。 结果，密封发生在袋的延伸区域上并且动态地响应于流体流动或压力的变化。