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

CPC分类号： E21B33/05 ,  E21B33/16

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。

公开(公告)号：US20120090856A1

公开(公告)日：2012-04-19

申请号：US12903741

申请日：2010-10-13

申请人： Henry E. Rogers ,  David Szarka ,  Robert Pipkin

发明人： Henry E. Rogers ,  David Szarka ,  Robert Pipkin

IPC分类号： E21B33/12 ,  E21B23/12

CPC分类号： E21B47/024

摘要： An apparatus for indicating the orientation of a structure which includes an orienting sub releasably connected at an outer case. The orienting sub is at a preselected orientation relative to the structure. A change in fluid pressure of a predetermined magnitude of flow rate through the orienting sub will indicate that the structure is at a desired orientation in the well.

摘要翻译： 一种用于指示结构的取向的装置，其包括可拆卸地连接在外壳上的定向副。 定向子相对于结构处于预选的方向。 通过定向子级的预定流量的流体压力的变化将指示该结构在井中处于期望的取向。

公开(公告)号：US07510014B2

公开(公告)日：2009-03-31

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.

公开(公告)号：US20070102159A1

公开(公告)日：2007-05-10

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

CPC分类号： E21B33/05 ,  E21B33/16

摘要： A method of cementing a casing string in a subterranean well bore is provided. 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： 提供了一种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。

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

IPC分类号： E21B43/26 ,  E21B33/12

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.

公开(公告)号：US20070095527A1

公开(公告)日：2007-05-03

申请号：US11263729

申请日：2005-11-01

申请人： David Szarka

发明人： David Szarka

IPC分类号： E21B33/12

CPC分类号： E21B33/12 ,  E21B33/16

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.

摘要翻译： 进行井下作业，如刺激作业，井眼的区域隔离通常是需要的。 在某些实施例中，用于实现井筒中套管柱中的区域隔离的分流器塞可以包括具有第一端和第二端的心轴; 附接到并围绕心轴的纵向部分的可压缩主体; 以及连接到心轴的第一端的密封鼻。 在某些实施例中，用于实现套管柱在井眼中的区域分离的系统可以包括分流塞，其包括具有第一端和第二端的心轴，连接到并围绕心轴的纵向部分的可压缩体，以及 密封鼻连接到心轴的第一端; 以及尺寸适合与分流塞的密封鼻部的一部分配合的着陆衣领。 还提供了相关的方法。

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

CPC分类号： E21B33/05 ,  E21B33/16

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。

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

CPC分类号： E21B33/05 ,  E21B33/16

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。

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

IPC分类号： E21B33/05 ,  F16L55/13 ,  E21B33/13

CPC分类号： E21B33/05 ,  F16L55/13

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。

公开(公告)号：US20140048263A1

公开(公告)日：2014-02-20

申请号：US13734035

申请日：2013-01-04

申请人： Frank Acosta ,  Nicholas Budler ,  David Szarka

发明人： Frank Acosta ,  Nicholas Budler ,  David Szarka

IPC分类号： E21B34/14

CPC分类号： E21B34/14 ,  E21B23/04 ,  E21B23/06 ,  E21B33/1295 ,  E21B34/063

摘要： Systems and methods for activating a down hole tool in a wellbore. A piston is moveable from a first position to a second position for activating the down hole tool. The piston includes a first side exposed to an activation chamber, and a second side operatively coupled to the down hole tool. A rupture member has a first side exposed to the activation chamber and a second side exposed to the interior of a base pipe. The rupture member is configured to rupture when a pressure differential between the activation chamber and the interior reaches a predetermined threshold value, at which point the rupture member allows fluid communication between the interior and the activation chamber to pressurize the activation chamber and move the piston, thereby activating the down hole tool.

摘要翻译： 在井眼中激活井下工具的系统和方法。 活塞可从第一位置移动到第二位置，以激活井下工具。 活塞包括暴露于活化室的第一侧和可操作地联接到井下工具的第二侧。 破裂构件具有暴露于活化室的第一侧和暴露于基管内部的第二侧。 破裂构件被构造成当活化室和内部之间的压力差达到预定阈值时破裂，此时破裂构件允许内部和活化室之间的流体连通对活化室加压并移动活塞， 从而激活井下工具。