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公开(公告)号：US07644767B2
公开(公告)日：2010-01-12
申请号：US11619150
申请日：2007-01-02
IPC分类号： E21B34/06
CPC分类号： E21B34/10 , E21B2034/005
摘要： A safety valve with a flapper/flow tube friction reducer. A safety valve for use in a subterranean well includes a closure assembly, an operating member which engages the closure assembly, and at least one of the closure assembly and the operating member including a friction reducing device which provides rolling contact between the closure assembly and the operating member. Another safety valve includes a flapper which rotates about a pivot relative to a seat, a flow tube which engages the flapper to rotate the flapper, and a friction reducing device which with rolling contact biases the flow tube toward the pivot when the flow tube engages the flapper. Yet another safety valve is described in which at least one of the flapper, the seat and the flow tube has a friction reducing device attached thereto which provides rolling contact between the flapper and the flow tube, or between the flow tube and the seat.
摘要翻译： 带挡板/流量管减摩器的安全阀。 一种用于地下井的安全阀包括闭合组件，接合闭合组件的操作构件以及闭合组件和操作构件中的至少一个，包括减摩装置，该装置提供闭合组件与闭合组件之间的滚动接触 操作员 另一安全阀包括围绕枢轴相对于座椅旋转的挡板，接合挡板以旋转挡板的流管;以及摩擦减小装置，当流管接合时，滚动接触器将流动管朝向枢轴偏压 挡板。 描述了另一个安全阀，其中挡板，座和流管中的至少一个具有附接到其上的减摩装置，其提供挡板和流管之间或在流管和座之间的滚动接触。
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公开(公告)号：US07597149B2
公开(公告)日：2009-10-06
申请号：US11004471
申请日：2004-12-03
IPC分类号： E21B34/10
CPC分类号： F16K15/03 , E21B34/102 , E21B2034/005
摘要： A safety valve with extension springs. In a described embodiment, a valve for use in a subterranean well includes a closure member having open and closed positions. A structure displaces to cause the closure member to displace between the open and closed positions. A biasing device has a length which decreases as the structure displaces to cause the closure member to displace toward the closed position.
摘要翻译： 带延伸弹簧的安全阀。 在所描述的实施例中，用于地下井的阀包括具有打开和关闭位置的关闭构件。 结构移位以使闭合构件在打开位置和关闭位置之间移动。 偏置装置具有随结构位移而减小的长度，以使封闭构件向闭合位置移动。
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公开(公告)号：US08662179B2
公开(公告)日：2014-03-04
申请号：US13031551
申请日：2011-02-21
IPC分类号： E21B34/08
CPC分类号： E21B34/102 , E21B34/08 , E21B43/04 , E21B43/14 , E21B43/26 , E21B2034/007
摘要： A method of actuating multiple valves in a well can include applying a pressure cycle to the valves without causing actuation of any of the valves, and then simultaneously reducing pressure applied to the valves, thereby actuating the valves. Another method can include releasing a locking device of each valve which prevents actuation, and then reducing pressure applied to the valves, thereby actuating the valves. A valve can include a port which provides for fluid communication between an exterior and an interior of the valve, a closure member which selectively permits and prevents fluid flow through the port, the closure member permits flow through the port in response to a decrease in a pressure differential from the interior to the exterior of the valve, and a locking device which prevents displacement of the closure member, the locking device being released in response to mechanical force applied to the locking device.
摘要翻译： 在井中致动多个阀的方法可以包括在不引起任何阀门的情况下向阀施加压力循环，然后同时降低施加到阀的压力，从而致动阀。 另一种方法可以包括释放每个阀的锁定装置，其阻止致动，然后减小施加到阀的压力，从而致动阀。 阀可以包括提供在阀的外部和内部之间的流体连通的端口，封闭构件，其选择性地允许和防止流体流过端口，封闭构件允许响应于 从阀门的内部到外部的压力差，以及防止关闭构件的位移的锁定装置，锁定装置响应于施加到锁定装置的机械力被释放。
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公开(公告)号：US08453748B2
公开(公告)日：2013-06-04
申请号：US12751407
申请日：2010-03-31
IPC分类号： E21B34/08
CPC分类号： E21B34/08 , E21B34/10 , E21B2034/005 , Y10T137/0396 , Y10T137/7837
摘要： A method of actuating a valve in a well can include storing energy as a result of a differential pressure across a closed closure device of the valve, and releasing at least a portion of the stored energy while opening the closure device. A valve for use in a well can include a closure device, a biasing device, and an actuator which stores energy in the biasing device in response to a pressure differential across the closure device. A well system can include a tubular string, and a valve which controls fluid flow through the tubular string. The valve may include a closure device and an actuator which actuates the valve at least partially in response to a pressure differential across the closure device.
摘要翻译： 致动井中的阀的方法可以包括由于压力跨越阀的闭合闭合装置而存储能量，并且在打开封闭装置的同时释放存储的能量的至少一部分。 用于井中的阀可以包括闭合装置，偏置装置和致动器，其响应于闭合装置两端的压力差而在偏置装置中存储能量。 井系统可以包括管状柱和控制流过管状管的流体的阀。 阀可以包括闭合装置和致动器，该致动器至少部分响应于闭合装置上的压力差来致动阀。
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公开(公告)号：US08038120B2
公开(公告)日：2011-10-18
申请号：US11618489
申请日：2006-12-29
IPC分类号： F16K31/08
CPC分类号： F16K31/086 , E21B34/10 , E21B2034/005
摘要： A magnetically coupled safety valve with satellite outer magnets. A safety valve includes a housing having multiple chambers extending longitudinally in a pressure bearing wall of the housing, and multiple magnetic devices, each of the magnetic devices being reciprocably disposed in a corresponding one of the chambers. Another safety valve includes multiple first magnetic devices, a second magnetic device magnetically coupled to the first magnetic devices, with the first magnetic devices being circumferentially spaced apart and encircling the second magnetic device. Yet another safety valve includes a housing having a pressure bearing wall, and multiple magnetic devices, each of the magnetic devices being reciprocably disposed in the housing wall, and each of the magnetic devices being completely surrounded by the housing wall.
摘要翻译： 具有卫星外磁铁的磁耦合安全阀。 安全阀包括具有在壳体的压力承受壁中纵向延伸的多个室的壳体和多个磁性装置，每个磁性装置可往复地布置在相应的一个室中。 另一安全阀包括多个第一磁性装置，与第一磁性装置磁耦合的第二磁性装置，其中第一磁性装置周向间隔开并环绕第二磁性装置。 又一安全阀包括具有压力承受壁的壳体和多个磁性装置，每个磁性装置可往复地设置在壳体壁中，并且每个磁性装置被壳体壁完全包围。
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公开(公告)号：US07640989B2
公开(公告)日：2010-01-05
申请号：US11469269
申请日：2006-08-31
CPC分类号： E21B34/066 , E21B2034/005
摘要： Electrically operated well tools. A well system includes a well tool positioned in a wellbore. The well tool includes an actuator and an operating member displaceable to operate the well tool. The actuator includes a series of longitudinally distributed electromagnets, in which current is controllable in a predetermined pattern to thereby variably control longitudinal displacement of the operating member. In another well system, the operating member is displaceable between opposite maximum limits of displacement to operate the well tool, and an electromagnet is operative to displace the operating member to at least one position between the opposite maximum limits of displacement. In a method of operating a well tool, the well tool is operated by controlling current in a series of longitudinally distributed electromagnets of an actuator in a predetermined pattern, thereby causing corresponding longitudinal displacement of an operating member.
摘要翻译： 电动井具。 井系统包括定位在井眼中的井工具。 井具包括致动器和可移动以操作井工具的操作构件。 致动器包括一系列纵向分布的电磁体，其中电流可以预定的模式控制，从而可变地控制操作构件的纵向位移。 在另一个井系统中，操作构件可以在相对的最大极限位移之间移动以操作井具，并且电磁体可操作以将操作构件移动到位移相对的最大极限之间的至少一个位置。 在操作井工具的方法中，通过以预定图案控制致动器的一系列纵向分布的电磁体中的电流来操作井工具，从而引起操作构件的相应的纵向位移。
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7.发明授权Hydraulically operated formation isolation valve for underbalanced drilling applications 有权用于欠平衡钻井应用的液压操作地层隔离阀公开(公告)号：US07597151B2
公开(公告)日：2009-10-06
申请号：US11180140
申请日：2005-07-13
申请人： Fredrick D. Curtis , Ronald Hyden , Michael Harvey , Jimmie R. Williamson, Jr. , James D. Vick, Jr.
发明人： Fredrick D. Curtis , Ronald Hyden , Michael Harvey , Jimmie R. Williamson, Jr. , James D. Vick, Jr.
IPC分类号： E21B34/14
CPC分类号： E21B47/12 , E21B23/00 , E21B34/14 , E21B2021/006
摘要： A formation isolation valve for underbalanced drilling applications. A system for operating a formation isolation valve includes the valve interconnected in a casing string. An assembly displaces through the casing string, thereby causing the valve to open prior to the assembly reaching the valve. An operating system includes a well tool with an actuator positioned downhole. A device for causing the actuator to operate the well tool is also positioned downhole remote from the actuator. A method of operating a well tool includes the steps of: positioning the well tool in a well, the well tool including an actuator; positioning a power source for the actuator in the well; and at a downhole position remote from the actuator, causing the actuator to operate the well tool.
摘要翻译： 用于欠平衡钻井应用的地层隔离阀。 用于操作地层隔离阀的系统包括在套管柱中相互连接的阀。 组件通过套管柱移动，从而在组件到达阀门之前使阀门打开。 操作系统包括井下工具，致动器位于井下。 用于使致动器操作井工具的装置也位于远离致动器的井下。 操作井工具的方法包括以下步骤：将井工具定位在井中，井工具包括致动器; 将致动器的电源定位在井中; 并且在远离致动器的井下位置处，致使致动器操作井工具。
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公开(公告)号：US09016387B2
公开(公告)日：2015-04-28
申请号：US13085075
申请日：2011-04-12
CPC分类号： E21B47/011 , E21B33/10 , E21B34/066
摘要： A pressure equalization apparatus can include separate longitudinal bores which form a continuous flowpath, the flowpath alternating direction between the bores, and the bores being interconnected at opposite ends thereof. A well system can include a well tool with a chamber therein containing an assembly in a dielectric fluid, and a pressure equalization apparatus including a flowpath having one end connected to the chamber, and the other end connected to a source of a another fluid, the flowpath extending in opposite directions between the flowpath ends through multiple separate bores. A method of installing a well tool can include attaching a mandrel to the well tool, then lowering the well tool at least partially into the well suspended from the mandrel, and then securing a pressure equalization apparatus to the mandrel, a flowpath of the apparatus being connected to a chamber of the well tool containing an assembly.
摘要翻译： 压力平衡装置可以包括分开的纵向孔，其形成连续的流动路径，孔之间的流路交替方向和孔在其相对端相互连接。 井系统可以包括具有其中包含介电流体中的组件的腔室的井具，以及压力平衡装置，其包括具有连接到腔室的一端的流路，另一端连接到另一流体的源， 在流路端部之间沿相反方向延伸通过多个分开的孔的流路。 安装井具的方法可以包括将心轴附接到井工具，然后将井工具至少部分地放入从心轴悬挂的井中，然后将压力平衡装置固定到心轴上，该装置的流路为 连接到包含组件的井具的腔室。
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公开(公告)号：US08573304B2
公开(公告)日：2013-11-05
申请号：US12951502
申请日：2010-11-22
IPC分类号： E21B34/06
CPC分类号： E21B34/066 , E21B2034/005
摘要： A safety valve for use in a subterranean well can include a housing assembly having a flow passage extending longitudinally through the housing assembly. An outer diameter of the housing assembly is eccentric relative to the flow passage. A well tool can include a magnetic coupling between magnet devices. One magnet device includes a series of magnets which are unequally spaced circumferentially about the other magnet device. Another safety valve can include a longitudinally extending flow passage, a closure device which selectively permits and prevents flow through the flow passage, and an outer diameter which is eccentric relative to the flow passage.
摘要翻译： 用于地下井的安全阀可以包括壳体组件，其具有纵向延伸穿过壳体组件的流动通道。 壳体组件的外径相对于流动通道是偏心的。 良好的工具可以包括磁性装置之间的磁耦合。 一个磁体装置包括一系列相对于另一个磁体装置周向不平等间隔的磁体。 另一个安全阀可以包括纵向延伸的流动通道，可选择性地允许和防止流过流动通道的封闭装置以及相对于流动通道偏心的外径。
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公开(公告)号：US08567506B2
公开(公告)日：2013-10-29
申请号：US12204346
申请日：2008-09-04
IPC分类号： E21B34/06
CPC分类号： E21B47/011
摘要： A fluid isolating pressure equalization in a subterranean well. A well system includes a well tool including a chamber therein containing an electrical assembly in a dielectric fluid, and a pressure equalization apparatus including a flowpath having opposite ends. One end is connected to the chamber, and the other end is connected to a source of another fluid. The flowpath extends alternately upward and downward between the opposite ends. A pressure equalization apparatus for use with a well tool in a subterranean well includes multiple spiral wraps of a tube. A flowpath in the tube extends in opposite directions in respective successive wraps of the tube.
摘要翻译： 地下井中的流体隔离压力平衡。 井系统包括井工具，其包括其中包含介电流体中的电组件的室，以及包括具有相对端的流路的压力平衡装置。 一端连接到腔室，另一端连接到另一流体源。 流路在相对端之间交替地向上和向下延伸。 用于地下井中的井工具的压力平衡装置包括管的多个螺旋形涡卷。 管中的流路在管的相应连续的包层中沿相反方向延伸。
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