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公开(公告)号：US20050247458A1
公开(公告)日：2005-11-10
申请号：US10841772
申请日：2004-05-07
申请人： Michael Stevens , David Szarka , Kevin Berscheidt , Henry Rogers , Brett Fears
发明人： Michael Stevens , David Szarka , Kevin Berscheidt , Henry Rogers , Brett Fears
摘要： The present invention relates to subterranean cementing operations, and more particularly to an apparatus useful in loading cementing plugs and darts into tubulars, and methods of using such apparatus in subterranean cementing operations. An example of a method of the present invention is a method of placing a compressible object having a cross-section within a tubular, including the steps of: reducing the cross-section of the compressible object; placing the compressible object with the reduced cross-section in a tubular; and releasing the compressible object within the tubular. Another example of a method of the present invention is a method of reducing the radial cross-section of a compressible object. Other examples of apparatus of the present invention include apparatus for placing a compressible object into a tubular.
摘要翻译： 本发明涉及地下固井作业，更具体地说涉及一种用于将胶结塞和飞镖装入管中的装置，以及在地下固井操作中使用这种装置的方法。 本发明的方法的一个实例是将具有横截面的可压缩物体放置在管状体内的方法，包括以下步骤：减小可压缩物体的横截面; 将具有减小的横截面的可压缩物体放置在管状中; 并释放管状内的可压缩物体。 本发明方法的另一个实例是减小可压缩物体的径向横截面的方法。 本发明的装置的其它实例包括用于将可压缩物体放置在管状物中的装置。
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公开(公告)号：US20070012448A1
公开(公告)日：2007-01-18
申请号：US11182401
申请日：2005-07-15
申请人： Henry Rogers , David Szarka , Brett Fears
发明人： Henry Rogers , David Szarka , Brett Fears
IPC分类号： E21B33/16
CPC分类号： E21B33/16 , E21B21/103
摘要： A method for controlling a fluid pressure applied to a cementing plug comprises disposing the cementing plug within a casing string to define a trapped volume of fluid within the casing string, isolating a portion of the trapped volume of fluid adjacent the cementing plug to define an isolated volume of fluid, and relieving the fluid pressure within the isolated volume of fluid at a first rate sufficient to prevent damage to or inadvertent release of the cementing plug. An apparatus for relieving fluid pressure within a casing string being run into a well bore comprises at least one equalizer valve connected to a work string extending into the casing string, and a sealing device disposed above the equalizer valve to seal an annular space formed between the work string and the casing string.
摘要翻译： 用于控制施加到固井塞的流体压力的方法包括将固井塞置于套管柱内以限定套管柱内的被捕获的流体体积，隔离邻近固井塞的流体的一部分被捕获的体积以限定隔离的 流体体积，并以足以防止粘结塞的损坏或无意释放的第一速率释放隔离体积的流体内的流体压力。 用于减轻套管柱内的流体压力进入井眼的装置包括连接到延伸到套管柱中的工作串的至少一个均衡阀，以及设置在均衡阀上方的密封装置，以密封形成在壳体中的环形空间 工作字符串和套管字符串。
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公开(公告)号：US20100059228A1
公开(公告)日：2010-03-11
申请号：US12207002
申请日：2008-09-09
申请人： Desmond Jones , David Szarka , Brett Fears , Earl Webb
发明人： Desmond Jones , David Szarka , Brett Fears , Earl Webb
IPC分类号： E21B37/04
摘要： A dart may include a foam body, a filtering material at least partially covering the foam body, and a mandrel. The foam body may surround the mandrel.
摘要翻译： 飞镖可以包括泡沫体，至少部分地覆盖泡沫体的过滤材料和心轴。 泡沫体可围绕心轴。
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公开(公告)号：US07673688B1
公开(公告)日：2010-03-09
申请号：US12207002
申请日：2008-09-09
申请人： Desmond Jones , David Szarka , Brett Fears , Earl Webb
发明人： Desmond Jones , David Szarka , Brett Fears , Earl Webb
IPC分类号： E21B37/04
摘要： A dart may include a foam body, a filtering material at least partially covering the foam body, and a mandrel. The foam body may surround the mandrel.
摘要翻译： 飞镖可以包括泡沫体，至少部分地覆盖泡沫体的过滤材料和心轴。 泡沫体可围绕心轴。
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公开(公告)号：US20070095533A1
公开(公告)日：2007-05-03
申请号：US11264228
申请日：2005-11-01
申请人： Henry Rogers , Steven Holden , David Szarka
发明人： Henry Rogers , Steven Holden , David Szarka
IPC分类号： E21B17/14
CPC分类号： E21B33/14 , E21B21/10 , E21B34/102 , E21B2034/005 , Y10T137/88062
摘要： A regulating valve assembly for regulating fluid flow through a passage, the assembly having: a back-flow valve comprising a seat and a closure element, wherein the closure element engages with the seat in a closed configuration and disengages from the seat in an open configuration; a lock in mechanical communication with the back-flow valve to lock the backflow valve in the open configuration; and a forward-flow valve in mechanical communication with the lock and comprising a seat and a closure element, wherein the closure element engages with the seat in a closed configuration and disengages from the seat in an open configuration.
摘要翻译： 一种用于调节通过通道的流体流动的调节阀组件，所述组件具有：包括座和闭合元件的回流阀，其中所述闭合元件以闭合构型与所述座接合并且以开放构型与所述座脱离 ; 与所述回流阀机械连接的锁定器将所述回流阀锁定在所述打开构造中; 以及与所述锁机械连接并包括座和闭合元件的向前流动阀，其中所述闭合元件以闭合构型与所述座接合并且以开放构型与所述座脱离。
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公开(公告)号：US20070095538A1
公开(公告)日：2007-05-03
申请号：US11263730
申请日：2005-11-01
申请人： David Szarka , William Gilbert , David Burkhead , Henry Rogers , Nicholas Braun , Todd Cooper , John Johnson
发明人： David Szarka , William Gilbert , David Burkhead , Henry Rogers , Nicholas Braun , Todd Cooper , John Johnson
CPC分类号： E21B33/134 , E21B23/10 , E21B43/26
摘要： Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a second end; a compressible body attached to and surrounding a longitudinal portion of the mandrel; and a sealing nose attached to the first end of the mandrel. In certain embodiments, systems for achieving zonal isolation of a casing string in a well bore may comprise a diverter plug comprising a mandrel having a first end and a second end, a compressible body attached to and surrounding a longitudinal portion of the mandrel, and a sealing nose attached to the first end of the mandrel; and a landing collar sized to mate with a portion of the sealing nose of the diverter plug. Associated methods are also provided.
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公开(公告)号：US20050103493A1
公开(公告)日：2005-05-19
申请号：US10714831
申请日：2003-11-14
申请人： Michael Stevens , Earl Webb , David Szarka
发明人： Michael Stevens , Earl Webb , David Szarka
IPC分类号： E21B33/124 , E21B33/16 , E21B23/00 , E21B33/12 , E21B43/34
CPC分类号： E21B33/124 , E21B33/16
摘要： The present invention is directed to plugs, plug systems and methods for using the plugs and systems in subterranean wells. The plugs comprise an inner mandrel and an outer sleeve formed of a compressible foam. The plug systems include an assembly comprising a top plug and a bottom plug having foam outer sleeves. The plug systems further comprise a float valve into which the assembly fits. In the method, the bottom plug is deployed ahead of the top plug to separate a second fluid from a first fluid and wipe the inside of the pipe string clean of the first fluid. The top plug is used to wipe the inside of the pipe string clean of the second fluid and stop the displacement of the second fluid into the annulus between the casing string and the well bore.
摘要翻译： 本发明涉及在地下井中使用塞子和系统的塞子，塞子系统和方法。 塞子包括内心轴和由可压缩泡沫形成的外套筒。 塞子系统包括包括顶塞和具有泡沫外套筒的底塞的组件。 塞子系统还包括浮阀，组件装配到该浮阀中。 在该方法中，底塞在顶塞之前部署，以将第二流体与第一流体分离并擦拭管柱的内部，清洁第一流体。 顶塞用于擦拭管柱的内部清洁第二流体，并阻止第二流体移动到套管柱和井眼之间的环形空间中。
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公开(公告)号：US20070102158A1
公开(公告)日：2007-05-10
申请号：US11611407
申请日：2006-12-15
申请人： David Szarka
发明人： David Szarka
IPC分类号： E21B33/13
摘要： Methods and apparatus for subterranean well bore operations are provided. An exemplary embodiment of a method of the present invention is a method of activating a device in a subterranean well bore, the device having a baffle adapter configured to achieve sealing contact with a cementing plug, the cementing plug having an outer body and a detachable inner mandrel attached to the outer body, including the steps of: displacing the cementing plug into contact with the baffle adapter so that the outer body of the cementing plug achieves sealing contact with the baffle adapter; and applying a differential pressure across the cementing plug, thereby activating the device. An exemplary embodiment of an apparatus of the present invention is a baffle adapter, having an inner bore designed to engage and seal against the outer body of a plug.
摘要翻译： 提供了地下井眼操作的方法和装置。 本发明的方法的示例性实施例是一种激活地下井孔中的装置的方法，该装置具有被配置为实现与固井塞的密封接触的挡板适配器，所述固井塞具有外主体和可拆卸的内部 附着在外壳上的心轴，包括以下步骤：将胶合塞移动到与挡板适配器接触，使得固井塞的外体与挡板适配器达成密封接触; 并且在所述固井塞上施加压差，从而启动所述装置。 本发明的装置的示例性实施例是挡板适配器，其具有设计成接合并密封塞子的外主体的内孔。
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公开(公告)号：US07686092B2
公开(公告)日：2010-03-30
申请号：US11611407
申请日：2006-12-15
申请人： David Szarka
发明人： David Szarka
IPC分类号： E21B33/12
摘要： Methods and apparatus for subterranean well bore operations. An exemplary embodiment of a method is a method of activating a device in a subterranean well bore, the device having a baffle adapter configured to achieve sealing contact with a cementing plug, the cementing plug having an outer body and a detachable inner mandrel attached to the outer body, including the steps of: displacing the cementing plug into contact with the baffle adapter so that the outer body of the cementing plug achieves sealing contact with the baffle adapter; and applying a differential pressure across the cementing plug, thereby activating the device. An exemplary embodiment of an apparatus is a baffle adapter, having an inner bore designed to engage and seal against the outer body of a plug.
摘要翻译： 地下井眼作业的方法和装置。 一种方法的示例性实施例是一种激活地下井孔中的装置的方法，该装置具有构造成实现与固井塞的密封接触的挡板适配器，该固井塞具有外主体和一可拆卸内心轴， 包括以下步骤：使固井塞移动与挡板适配器接触，使得固井塞的外主体与挡板适配器实现密封接触; 并且在所述固井塞上施加压差，从而启动所述装置。 设备的示例性实施例是挡板适配器，其具有被设计成与插头的外部主体接合和密封的内孔。
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公开(公告)号：US07584792B2
公开(公告)日：2009-09-08
申请号：US11611431
申请日：2006-12-15
申请人： David Szarka
发明人： David Szarka
IPC分类号： E21B33/13
摘要： A method of cementing a casing string in a subterranean well bore. An exemplary embodiment of a method includes injecting a cement composition into a casing string, and deploying within the casing string at least one cementing plug having an outer body and a detachable inner mandrel attached to the outer body.
摘要翻译： 将套管柱固定在地下井眼中的方法。 一种方法的示例性实施例包括将水泥组合物注入到套管柱中，并且在套管柱内展开至少一个固定塞，其具有外主体和附接到外体的可拆卸内心轴。
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