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公开(公告)号：US07552777B2
公开(公告)日：2009-06-30
申请号：US11320113
申请日：2005-12-28
IPC分类号： E21B23/00
摘要： Setting mechanisms for downhole tools are described that take advantage of hydrostatic pressure in the wellbore which is harnessed to set a tool after exposure to well fluids for a given time or temperature defeats a lock and allows hydrostatic forces to trigger the setting of the tool. Alternatively, some other biasing source is released to set the downhole tool after exposure to well fluids for a time or a temperature and time defeats a lock and allows the biasing source to set the tool. While applications to packers are preferred, other downhole tools can be set in his manner removing the need for an inner string, dropping a ball on a seat or pressurizing the wellbore to achieve the setting of the downhole tool.
摘要翻译： 描述了井下工具的设置机构，其利用井筒中的静水压力，其利用在暴露于井流体之后在给定时间或温度下设置工具来击倒锁并允许静压力触发工具的设定。 或者，一些其他偏压源被释放以在暴露于井液之后设置井下工具一段时间或温度，并且时间使锁定失败并允许偏置源设置工具。 当对封隔器的应用是优选的时，其他井下工具可以按照他的方式设置，从而消除对内线的需要，将球放在座上或对井筒加压以实现井下工具的设定。
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公开(公告)号：US07806193B2
公开(公告)日：2010-10-05
申请号：US12134419
申请日：2008-06-06
申请人： Vel Berzin , Douglas J. Murray , Edward T. Wood , Steven N. Bailey , Robert O. Castillo , Darwin D. Arline
发明人： Vel Berzin , Douglas J. Murray , Edward T. Wood , Steven N. Bailey , Robert O. Castillo , Darwin D. Arline
CPC分类号： E21B33/1216 , E21B33/1208 , Y10T29/49826
摘要： A packer assembly which incorporates a swellable elastomeric packer element and one or more swellable thermoplastic components. The swellable thermoplastic components are support rings that are located at each axial end of the elastomeric element and provide positive mechanical backups for the elastomeric element to limit extrusion of the packer element.
摘要翻译： 封隔器组件，其包含可膨胀弹性体封隔器元件和一个或多个可溶胀热塑性组分。 可膨胀的热塑性组分是位于弹性体元件的每个轴向端处的支撑环，并且为弹性体元件提供积极的机械支撑以限制封隔器元件的挤压。
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公开(公告)号：US20090139707A1
公开(公告)日：2009-06-04
申请号：US12134419
申请日：2008-06-06
申请人： Vel Berzin , Douglas J. Murray , Edward T. Wood , Steven N. Bailey , Robert O. Castillo , Darwin D. Arline
发明人： Vel Berzin , Douglas J. Murray , Edward T. Wood , Steven N. Bailey , Robert O. Castillo , Darwin D. Arline
IPC分类号： E21B33/12 , B29C65/00 , E21B33/127
CPC分类号： E21B33/1216 , E21B33/1208 , Y10T29/49826
摘要： A packer assembly which incorporates a swellable elastomeric packer element and one or more swellable thermoplastic components. The swellable thermoplastic components are support rings that are located at each axial end of the elastomeric element and provide positive mechanical backups for the elastomeric element to limit extrusion of the packer element.
摘要翻译： 封隔器组件，其包含可膨胀弹性体封隔器元件和一个或多个可溶胀热塑性组分。 可膨胀的热塑性组分是位于弹性体元件的每个轴向端处的支撑环，并且为弹性体元件提供积极的机械支撑以限制封隔器元件的挤压。
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公开(公告)号：US07392841B2
公开(公告)日：2008-07-01
申请号：US11320112
申请日：2005-12-28
申请人： Douglas J. Murray , Vel Berzin
发明人： Douglas J. Murray , Vel Berzin
IPC分类号： E21B23/06
CPC分类号： E21B33/1277 , E21B33/1208
摘要： A packer assembly features one or more elements that preferably swell when in contact with well fluids and have a feature in them that responds to an applied load in a given direction by retaining such a boost force with a locking mechanism. A single element can have two such mechanisms that respond to applied forces from opposed directions. Friction force for adhering the element to the mandrel is enhanced with surface treatments between them that still allow the locking mechanisms to operate.
摘要翻译： 封隔器组件具有一个或多个元件，其优选地当与井流体接触时膨胀，并且具有在其中的特征，其通过用锁定机构保持这种增压力来对给定方向施加的载荷作出响应。 单个元件可以具有两个这样的机构，其响应来自相反方向的施加的力。 通过它们之间的表面处理，使元件粘附到心轴上的摩擦力增强，这仍然允许锁定机构操作。
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公开(公告)号：US07661471B2
公开(公告)日：2010-02-16
申请号：US11292013
申请日：2005-12-01
申请人： Douglas J. Murray , Vel Berzin
发明人： Douglas J. Murray , Vel Berzin
IPC分类号： E21B33/12
CPC分类号： E21B33/1277 , E21B33/1216
摘要： Preformed ribs are held closely to the swelling element and then are allowed to assume an expanded position to capture the ends of the swelling element. Many variations are possible one of which is retaining the ribs in a run in position with a band that releases by interaction with well fluid. In another embodiment the ribs are of a shape memory material and go to the enlarged state after a time and exposure to well fluids. The swelling action of the element could urge the ribs to the expanded position. Alternatively, a retractable sleeve can be actuated after a delay using a piston and a sealed compartment where a material must dissolve or otherwise go away before the piston can stroke to remove a retainer from ribs that can then move out.
摘要翻译： 预形成的肋条紧紧地固定在膨胀元件上，然后被允许呈现膨胀位置以捕获膨胀元件的端部。 许多变型是可能的，其中之一是通过与井流体的相互作用而释放的条带将肋保持在位置。 在另一个实施例中，肋是形状记忆材料，并且经过一段时间并暴露于良好的流体之后进入放大状态。 元件的膨胀作用可以促使肋条处于膨胀位置。 或者，可以在使用活塞和密封隔室的延迟之后致动可伸缩套筒，其中材料必须溶解或者在活塞行程之前去除，以将保持器从可以移出的肋部移除。
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公开(公告)号：US07478678B2
公开(公告)日：2009-01-20
申请号：US11316020
申请日：2005-12-21
摘要： A setting mechanism is made to respond to hydrostatic pressure. Upon reaching a predetermined depth corresponding to a given pressure, a pilot piston is shifted to allow well fluids to bypass a first set of piston seals and reach a second set. A shear pin that held the pilot piston in position is broken as the hydrostatic pressure increases with greater depth attained. However, the shifting of the pilot piston does not cause the main piston in the assembly to set the downhole tool. The action of the well fluids on the secondary seal set on the pilot piston eventually fail the second seal set allowing hydrostatic pressure to bypass them and actuate the main piston that will set the downhole tool. Raising the tool from the wellbore allows the spring acting on the pilot piston to seal in a bore to isolate hydrostatic pressure from the operating piston.
摘要翻译： 进行静水压力的设定机构。 在达到对应于给定压力的预定深度时，先导活塞被移动以允许井流体绕过第一组活塞密封件并到达第二组。 将导向活塞保持在适当位置的剪切销随着静水压力增加而达到较大的深度而断裂。 然而，先导活塞的移动不会导致组件中的主活塞设置井下工具。 井液对先导活塞上的次级密封件的作用最终不能通过第二密封组，允许静水压力绕过它们并致动将设置井下工具的主活塞。 从井眼提升工具允许作用在先导活塞上的弹簧密封在孔中，以将流体静压与工作活塞隔离。
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公开(公告)号：US08939221B2
公开(公告)日：2015-01-27
申请号：US13343886
申请日：2012-01-05
申请人： Douglas J. Murray
发明人： Douglas J. Murray
IPC分类号： E21B23/02
CPC分类号： E21B23/02
摘要： A lock assembly including a mandrel having one or more windows arranged alternatingly with one or more struts. One or more dogs are included corresponding to the one or more windows and are radially extendable therethrough. A member is operatively arranged for radially extending each of the one or more dogs. Each of the one or more dogs is operatively coupled between the member and the mandrel when fully radially extended by the member for bypassing loading in the one or more struts during loading of the assembly.
摘要翻译： 一种锁组件，包括具有与一个或多个支柱交替布置的一个或多个窗口的心轴。 对应于一个或多个窗口包括一个或多个狗，并且可径向延伸穿过其中。 一个构件可操作地布置成径向延伸一个或多个狗的每一个。 一个或多个狗的每一个在构件和心轴之间被完全径向延伸时可操作地联接在构件上，用于在装配装置期间绕过一个或多个支柱中的负载。
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8.发明授权公开(公告)号：US08607860B2
公开(公告)日：2013-12-17
申请号：US12980626
申请日：2010-12-29
申请人： Marcus A. Avant , Douglas J. Murray
发明人： Marcus A. Avant , Douglas J. Murray
IPC分类号： E21B23/02
CPC分类号： E21B23/02
摘要： A collet assembly has a housing and the collets disposed on flexible fingers connected to the housing at their opposed ends. A surrounding landing sleeve stops the assembly so that collets are aligned with a recess in a landing collar that is part of a surrounding tubing string. Once set the landing sleeve transmits compressive loads so that compressive stress essentially bypasses the finger structure supporting the collets. The fingers are initially tapered toward a longitudinal axis so that when internally supported they assume an aligned orientation to the housing axis to allow greater tensile loading and to provide a retraction force when the housing is to be removed after the collet support is removed.
摘要翻译： 夹头组件具有壳体，并且夹头设置在柔性指状物上，在其相对端部处连接到壳体。 周围的着陆套筒停止组装，使得夹头与作为周围油管柱的一部分的着陆轴环中的凹部对准。 一旦设置，着陆套筒就会传递压缩载荷，使得压缩应力基本上绕过支撑夹头的手指结构。 手指最初朝着纵向轴线渐缩，使得当内部支撑时，它们采取与壳体轴线对齐的取向，以允许更大的拉伸载荷，并且在夹套支撑件被移除之后要移除壳体时提供回缩力。
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公开(公告)号：US20130175027A1
公开(公告)日：2013-07-11
申请号：US13343886
申请日：2012-01-05
申请人： Douglas J. Murray
发明人： Douglas J. Murray
IPC分类号： E21B23/02
CPC分类号： E21B23/02
摘要： A lock assembly including a mandrel having one or more windows arranged alternatingly with one or more struts. One or more dogs are included corresponding to the one or more windows and are radially extendable therethrough. A member is operatively arranged for radially extending each of the one or more dogs. Each of the one or more dogs is operatively coupled between the member and the mandrel when fully radially extended by the member for bypassing loading in the one or more struts during loading of the assembly. A method of locking an assembly is also included.
摘要翻译： 一种锁组件，包括具有与一个或多个支柱交替布置的一个或多个窗口的心轴。 对应于一个或多个窗口包括一个或多个狗，并且可径向延伸穿过其中。 一个构件可操作地布置成径向延伸一个或多个狗的每一个。 一个或多个狗的每一个在构件和心轴之间被完全径向延伸时可操作地联接在构件上，用于在装配装置期间绕过一个或多个支柱中的负载。 还包括锁定组件的方法。
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公开(公告)号：US07703532B2
公开(公告)日：2010-04-27
申请号：US11856395
申请日：2007-09-17
IPC分类号： E21B34/06
CPC分类号： E21B34/105 , E21B2034/005
摘要： A flapper type downhole valve is opened by flow against the flapper. The flapper and the housing contain magnets that hold the flapper open after it has been opened by flow to keep the flapper from chattering from the flow going past it. The strength of the force is not sufficient to hold the flapper open against a torsion spring on a pivot pin, when there is no flow through the valve. The valve can still be held in the locked open position with no flow through the housing by pressurizing the surrounding annulus to position another magnet to increase the holding force to a level greater than the force of the torsion spring. The additional magnet is spring biased so that upon removal of annulus pressure it shifts to allow the flapper to close. Alternative designs with and without a flow tube are possible. Fixed or movable restrictions can be associated with the flow tube to create a force to shift it to open a flapper with flow into the well.
摘要翻译： 挡板式井下阀门通过流动挡板打开。 挡板和壳体包含磁体，它在通过流动打开后将挡板保持打开状态，以防止挡板从流过其的流动颤动。 当没有流过阀门时，力的强度不足以将挡板保持在枢轴销上的扭转弹簧上。 阀仍然可以保持在锁定的打开位置，没有流过壳体，通过对周围的环进行加压来定位另一个磁体，以将保持力增加到大于扭簧的力的水平。 额外的磁体是弹簧偏置的，因此在移除环形压力时，它移动以允许挡板关闭。 具有和不具有流管的替代设计是可能的。 固定的或可移动的限制可以与流管相关联以产生力以使其移动以打开具有流入井的挡板。
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