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公开(公告)号：US5590713A
公开(公告)日：1997-01-07
申请号：US318266
申请日：1994-10-05
CPC分类号： H04B10/1141 , E21B33/05
摘要： An apparatus and method of dropping a pumpdown plug or ball is revealed. The release mechanism is actuated by remote control, employing intrinsically safe circuitry. The circuitry, along with its self-contained power source, actuates a primary control member responsive to an input signal so as to allow component shifting for release of the pumpdown plug or ball. Multiple plug-dropping heads can be stacked, each responsive to a discrete release signal. Actuation to drop the pumpdown ball or plug is accomplished even while the components are rotating or are moving longitudinally.
摘要翻译： 揭示了一种放下抽水塞或球的装置和方法。 释放机构由遥控器驱动，采用本质安全电路。 电路以及其独立的电源，响应于输入信号致动主控制构件，以允许部件移位以释放抽吸塞子或球。 可以堆叠多个插入头，每个插头都响应于离散释放信号。 即使组件正在旋转或纵向移动，也可以实现降低抽空球或塞子的动作。
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公开(公告)号：US5856790A
公开(公告)日：1999-01-05
申请号：US644889
申请日：1996-05-10
CPC分类号： H04B10/1141 , E21B33/05
摘要： An apparatus and method of dropping a pumpdown plug or ball is revealed. The assembly can be integrally formed with a plug-dropping head or can be an auxiliary feature that is mounted to a plug-dropping head. The release mechanism is actuated by remote control, employing intrinsically safe circuitry. The circuitry, along with its self-contained power source, actuates a primary control member responsive to an input signal so as to allow component shifting for release of the pumpdown plug or ball. Multiple plug-dropping heads can be stacked, each responsive to a discrete release signal. Actuation to drop the pumpdown ball or plug is accomplished even while the components are rotating or are moving longitudinally. Using the apparatus and method of the present invention, personnel do not need to climb up in the derrick to actuate manual valves. There is additionally no need for a rig floor-mounted control panel with hydraulic lines extending from the control panel to remotely located valves for plug or ball release.
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公开(公告)号：US5579283A
公开(公告)日：1996-11-26
申请号：US71422
申请日：1993-06-03
IPC分类号： E21B23/00 , E21B23/04 , E21B23/06 , E21B33/1295 , E21B34/06 , E21B34/10 , E21B41/00 , E21B43/1185 , E21B47/00 , E21B47/06 , E21B47/18 , G01L9/00 , G01V1/40 , E21C7/06
CPC分类号： E21B23/065 , E21B23/00 , E21B23/04 , E21B33/1295 , E21B34/06 , E21B34/063 , E21B34/066 , E21B34/102 , E21B41/00 , E21B43/1185 , E21B43/11852 , E21B47/0006 , E21B47/06 , E21B47/18 , E21B47/185 , E21B47/187 , G01L9/0002
摘要： A method and apparatus for communicating coded messages in a wellbore between a transmission node and a reception node is provided. The coded messages are messages are impressed upon a fluid column which extends between the transmission node and the reception node. A transmission apparatus is provided at the transmission node which is in communication with the fluid column, for altering pressure of the fluid column to generate at least a portion of the coded message. A reception apparatus is provided at the reception node. The reception apparatus includes a rigid structural component with an exterior surface which is in direct contact with fluid column and an interior surface which is not in contact with the fluid column, and a sensor assembly which detects elastic deformation of the rigid structural component. The transmission apparatus is utilized to alter pressure of the fluid column in a predetermined pattern to generate at least one coded message. The reception apparatus is utilized to detect the coded message in the fluid column through changes in elastic deformation of the rigid structural component.
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公开(公告)号：US5558153A
公开(公告)日：1996-09-24
申请号：US326824
申请日：1994-10-20
申请人： Michael W. Holcombe , David E. Rothers , Steve C. Owens , William D. Henderson , James C. Doane
发明人： Michael W. Holcombe , David E. Rothers , Steve C. Owens , William D. Henderson , James C. Doane
CPC分类号： E21B34/066 , E21B23/04 , E21B34/06
摘要： A downhole tool, comprising one or more separate packers and sliding sleeves in the preferred embodiment, is actuable from a nonelectrical signal transmitted from the surface to the tool. The signal is received at the tool by a control system located within the tool. The control system operates in conjunction with a power supply in the tool to accomplish tool actuation. In the preferred embodiment, the valve member is temporarily retained in a sealing position, isolating pressure in one chamber from a different pressure in an adjacent chamber. The valve member or piston is temporarily retained by a high-strength fiber, such as Kevlar.RTM., in the preferred embodiment. The control system actuates the power source to heat a resistance heating wire, which causes failure in the fiber. Other mechanisms to trigger pressure-equalization can be used. The fiber can be cut by a cutter actuated electrically. The piston can be retained by solder which is melted electrically. The piston can be designed to be substantially in pressure balance so that the fiber can effectively hold the piston in place until it is rendered inoperative by heating up a resistance wire from the power supply as triggered by the control circuit. Once the fiber fails, the piston is released and the pressure is equalized. The pressure-equalization can be used to shift a setting sleeve to set a packer or to open or close a sliding sleeve valve. Different valves can be actuated in series, using different control signals, or in parallel, using one control signal. In the alternative, the same valve can be actuated to open and then to close, depending on the procedures desired. The resistance wire is threaded into the fiber cable to ensure effective transmission of the heat for proper release of the piston when desired.
摘要翻译： 在优选实施例中包括一个或多个单独的封隔器和滑动套筒的井下工具可从从表面传递到工具的非电信号致动。 该信号通过位于工具内的控制系统在工具处接收。 控制系统与工具中的电源一起操作以完成工具致动。 在优选实施例中，阀构件暂时保持在密封位置，将一个室中的压力与相邻室中的不同压力隔离。 在优选实施例中，阀构件或活塞由高强度纤维例如Kevlar TM暂时保持。 控制系统启动电源以加热电阻加热丝，导致光纤故障。 可以使用触发压力均衡的其他机构。 纤维可以由电动切割机切割。 可以通过电熔化的焊料保持活塞。 活塞可以设计成基本上处于压力平衡中，使得纤维可以有效地将活塞保持就位，直到通过由控制电路触发而从电源加热电阻丝而使其不能工作。 一旦纤维发生故障，活塞被释放并且压力相等。 压力均衡可用于移动设置套筒以设置封隔器或打开或关闭滑动套筒阀。 使用不同的控制信号，或者使用一个控制信号并联地驱动不同的阀。 在替代方案中，根据所需的程序，相同的阀可被致动以打开然后关闭。 电阻丝穿入纤维电缆，以确保有效传输热量，以便在需要时适当释放活塞。
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公开(公告)号：US06414905B1
公开(公告)日：2002-07-02
申请号：US08756147
申请日：1996-11-26
申请人： Steve C.. Owens , Brett W. Bouldin , David E. Rothers , Douglas Julius Lehr , Michael Wayne Holcombe
发明人： Steve C.. Owens , Brett W. Bouldin , David E. Rothers , Douglas Julius Lehr , Michael Wayne Holcombe
IPC分类号： G01V900
CPC分类号： E21B23/065 , E21B23/00 , E21B23/04 , E21B33/1295 , E21B34/06 , E21B34/063 , E21B34/066 , E21B34/102 , E21B41/00 , E21B43/1185 , E21B43/11852 , E21B47/0006 , E21B47/06 , E21B47/18 , E21B47/185 , E21B47/187 , G01L9/0002
摘要： A method and apparatus for communicating coded messages in a wellbore between a transmission node and a reception node is provided. The coded messages are messages are impressed upon a fluid column which extends between the transmission node and the reception node. A transmission apparatus is provided at the transmission node which is in communication with the fluid column, for altering pressure of the fluid column to generate at least a portion of the coded message. A reception apparatus is provided at the reception node. The reception apparatus includes a rigid structural component with an exterior surface which is in direct contact with fluid column and an interior surface which is not in contact with the fluid column, and a sensor assembly which detects elastic deformation of the rigid structural component. The transmission apparatus is utilized to alter pressure of the fluid column in a predetermined pattern to generate at least one coded message. The reception apparatus is utilized to detect the coded message in the fluid column through changes in elastic deformation of the rigid structural component.
摘要翻译： 提供了一种用于在发送节点和接收节点之间的井眼中传送编码消息的方法和装置。 编码的消息是在传输节点和接收节点之间延伸的流体列上的消息。 传输装置设置在与流体塔连通的传输节点处，用于改变流体塔的压力以产生编码消息的至少一部分。 在接收节点处设置接收装置。 接收装置包括具有与流体柱直接接触的外表面和不与流体柱接触的内表面的刚性结构部件和检测刚性结构部件的弹性变形的传感器组件。 传输装置用于以预定模式改变流体塔的压力以产生至少一个编码消息。 接收装置用于通过刚性结构部件的弹性变形的变化来检测流体柱中的编码消息。
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