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公开(公告)号：US5316084A
公开(公告)日：1994-05-31
申请号：US751350
申请日：1991-08-28
申请人： Douglas J. Murray , Robert J. Coon , Mark E. Hopmann , Ronald D. Williams , Steve Jennings , Timothy R. Tips
发明人： Douglas J. Murray , Robert J. Coon , Mark E. Hopmann , Ronald D. Williams , Steve Jennings , Timothy R. Tips
CPC分类号： E21B33/1208 , E21B34/14 , E21B2033/005 , E21B2034/007
摘要： A downhole well tool is provided which includes a shifting sleeve for opening a flow communication port. The well tool includes first and second primary seal elements positioned upstream and downstream, respectively, of the port as well as upstream and downstream of the threaded connections between the well tool and sections of tubing forming the well flow conduit. A fluid diffuser element may be included to abate flow damage across the primary seal elements during the shifting of the sleeve. A method of selectively transmitting fluid incorporating said well tool also is disclosed.
摘要翻译： 提供一种井下井工具，其包括用于打开流动连通端口的换档套筒。 井工具包括位于端口的上游和下游的第一和第二主要密封元件以及井的工具和形成井流管道的管道部分之间的螺纹连接的上游和下游。 可以包括流体扩散器元件以在套筒移动期间消除穿过主密封元件的流动损伤。 公开了一种选择性地传输包含所述井具的流体的方法。
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公开(公告)号：US20140083766A1
公开(公告)日：2014-03-27
申请号：US13988139
申请日：2012-09-26
IPC分类号： E21B44/00
摘要： Disclosed are systems and methods of producing from multiple production zones with a single trip multi-zone completion system. One single trip multi-zone completion system includes an outer completion string having at least one sand screen arranged thereabout and a flow control device movably disposed within the at least one sand screen between an open position and a closed position, and an insert string arranged within the outer completion string and having at least one control and data acquisition module disposed thereon, the at least one control and data acquisition module having one or more mechanical coupling mechanisms extending therefrom and configured to locate and move the flow control device between the open and closed positions.
摘要翻译： 公开了通过单行程多区域完成系统从多个生产区域生产的系统和方法。 一个单行程多区域完成系统包括一个外部完成串，其具有布置在其周围的至少一个砂筛;以及流量控制装置，可移动地设置在打开位置和关闭位置之间的至少一个砂筛内，以及布置在 所述外部完成串并且具有设置在其上的至少一个控制和数据采集模块，所述至少一个控制和数据采集模块具有从其延伸的一个或多个机械耦合机构，并被配置成在所述开放和闭合之间定位和移动所述流量控制装置 职位
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公开(公告)号：US07836956B2
公开(公告)日：2010-11-23
申请号：US11626033
申请日：2007-01-23
CPC分类号： E21B41/00 , E21B23/04 , E21B47/09 , F15B15/2838
摘要： A method for positional control of an actuator includes applying pressure to both an input line and an output line connected to the actuator and then releasing a predetermined volume of fluid from the output line, thereby displacing a piston of the actuator a corresponding predetermined distance. A system for positional control of an actuator includes the actuator included in a well tool positioned in a well; the input line connected to the actuator and extending to a remote location; the output line connected to the actuator and extending to the remote location; and a fluid volume measurement device connected to the output line at the remote location. The fluid volume measurement device is operative to meter the predetermined volume of fluid from the output line.
摘要翻译： 一种用于致动器的位置控制的方法包括向输入线和连接到致动器的输出线两者施加压力，然后从输出线释放一定体积的流体，从而将致动器的活塞移动相应的预定距离。 一种用于致动器的位置控制的系统包括位于井中的井工具中的致动器; 输入线连接到致动器并延伸到远程位置; 输出线连接到执行器并延伸到远程位置; 以及连接到远程位置处的输出线的流体体积测量装置。 流体体积测量装置用于从输出线计量预定体积的流体。
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公开(公告)号：US07484566B2
公开(公告)日：2009-02-03
申请号：US11462077
申请日：2006-08-03
CPC分类号： E21B21/103 , E21B34/066 , E21B41/0085 , E21B47/18
摘要： A pulse width modulated downhole flow control. A downhole flow control system includes a flow control device with a flow restrictor which variably restricts flow through the flow control device. An actuator varies a vibratory motion of the restrictor to thereby variably control an average flow rate of fluid through the flow control device. A method of controlling flow in a well includes the steps of: installing a flow control device in the well, the flow control device including a flow restrictor which variably restricts flow through the flow control device; and displacing the restrictor to thereby pulse a flow rate of fluid through the flow control device.
摘要翻译： 脉宽调制井下流量控制。 井下流量控制系统包括具有流量限制器的流量控制装置，其可变地限制流过流量控制装置的流量。 致动器改变限制器的振动运动，从而可变地控制通过流量控制装置的流体的平均流速。 一种控制井中流量的方法包括以下步骤：在井中安装流量控制装置，流量控制装置包括可限制流过流量控制装置的流量的限流器; 并且使限流器移位，从而脉冲通过流量控制装置的流体的流速。
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公开(公告)号：US06659184B1
公开(公告)日：2003-12-09
申请号：US09115889
申请日：1998-07-15
IPC分类号： F21B3410
摘要： A multi-line back pressure control system for providing two way hydraulic line movement while maintaining back pressure control. Check valves are integrated in hydraulic fluid control lines extending downhole into a wellbore. Each check valve is pilot operated with pressure from another hydraulic line to selectively open the lines for two way fluid communication. Removal of the pilot pressure closes the check valves to provide passive back pressure control against catastrophic wellbore events. Pilot pressure operation between multiple pressurized lines can be provided with valves such as three-way, three-position piloted valves.
摘要翻译： 一种多线背压控制系统，用于在保持背压控制的同时提供双向液压管路运动。 止回阀集成在井下延伸到井眼中的液压流体控制管线中。 每个止回阀由另一个液压管路的压力导向操作，以选择性地打开用于双向流体连通的管路。 先导压力的拆除关闭止回阀，以提供对灾难性井眼事件的被动背压控制。 多个加压管路之间的先导压力操作可以设置有诸如三通三位导向阀的阀。
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