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公开(公告)号：US06405803B1
公开(公告)日：2002-06-18
申请号：US09549785
申请日：2000-04-14
IPC分类号： E21B3410
CPC分类号： E21B34/06 , Y10T137/0396 , Y10T137/7835
摘要： A downhole differential flow control valve is provided that utilizes a differential pressure area having one pressure area on which the wellbore pressure acts and a second area different from the first area on which pressure in the tubing acts. The differential area reduces the load in which the spring is required to exert a closing force in the valve. Thus, a coil spring can be used to improve the closing speeds of the valve.
摘要翻译： 提供一种井下差压流量控制阀，其利用具有一个在井筒压力作用的压力区域的差压区域和不同于管道中的压力作用的第一区域的第二区域。 差速器面积减小了弹簧在阀中施加闭合力所需的负载。 因此，可以使用螺旋弹簧来提高阀的关闭速度。
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公开(公告)号：US06978841B2
公开(公告)日：2005-12-27
申请号：US10807728
申请日：2004-03-24
CPC分类号： E21B23/04 , E21B27/00 , E21B37/08 , E21B43/124
摘要： A simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilizing the apparatus in a wellbore on coiled tubing.
摘要翻译： 用于井眼的简单碎片去除装置。 在本发明的一个方面，提供了一种可更换的文丘里管，其可以改造成具有过滤器和碎片收集容器的现有碎片吊架。 在本发明的另一方面，文丘里管用于在井筒中产生足够的负压以致动井下装置的取回工具。 在本发明的另一方面，提供了一种组合工具，其可以将井眼中的碎屑排出，从而露出井下装置，然后可以在单次行程中移除。 在本发明的另一方面，一种碎屑去除装置提供了一种在连续油管上的井眼中利用该装置的方法。
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公开(公告)号：US06719056B2
公开(公告)日：2004-04-13
申请号：US10388869
申请日：2003-03-14
IPC分类号： E21B3700
CPC分类号： E21B23/04 , E21B27/00 , E21B37/08 , E21B43/124
摘要： The present invention provides a simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for the apparatus in a wellbore on coiled tubing.
摘要翻译： 本发明提供一种用于井眼的简单的碎屑去除装置。 在本发明的一个方面，提供了一种可更换的文丘里管，其可以改造成具有过滤器和碎片收集容器的现有碎片吊架。 在本发明的另一方面，文丘里管用于在井筒中产生足够的负压以致动井下装置的取回工具。 在本发明的另一方面，提供了一种组合工具，其可以将井眼中的碎屑排出，从而露出井下装置，然后可以在单次行程中移除。 在本发明的另一方面，一种碎屑去除装置设置有用于在连续油管上的井眼中的装置的方法。
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公开(公告)号：US06640904B2
公开(公告)日：2003-11-04
申请号：US10163814
申请日：2002-06-06
IPC分类号： E21B3120
CPC分类号： E21B23/04 , E21B27/00 , E21B37/08 , E21B43/124
摘要： A simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilizing the apparatus in a wellbore on coiled tubing.
摘要翻译： 用于井眼的简单碎片去除装置。 在本发明的一个方面，提供了一种可更换的文丘里管，其可以改造成具有过滤器和碎片收集容器的现有碎片吊架。 在本发明的另一方面，文丘里管用于在井筒中产生足够的负压以致动井下装置的取回工具。 在本发明的另一方面，提供了一种组合工具，其可以将井眼中的碎屑排出，从而露出井下装置，然后可以在单次行程中移除。 在本发明的另一方面，一种碎屑去除装置提供了一种在连续油管上的井眼中利用该装置的方法。
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公开(公告)号：US06427776B1
公开(公告)日：2002-08-06
申请号：US09536937
申请日：2000-03-27
IPC分类号： E21B3708
CPC分类号： E21B23/04 , E21B27/00 , E21B37/08 , E21B43/124
摘要： The present invention provides a simple debris removal apparatus for use in a wellbore. In one aspect of the invention a modular, interchangeable venturi is provided which can be retrofit into an existing debris bailer having a filter and a debris collection container. In another aspect of the invention, a venturi is utilized to create a negative pressure in a wellbore sufficient to actuate a retrieval tool for a downhole device. In yet another aspect of the invention, a combination tool is provided which can evacuate debris in a wellbore, thereby uncovering a downhole device which can then be removed in a single trip. In yet another aspect of the invention, a debris removal apparatus is provided with a method for utilizing the apparatus in a wellbore on coiled tubing.
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公开(公告)号：US06886631B2
公开(公告)日：2005-05-03
申请号：US10212672
申请日：2002-08-05
申请人： Paul Wilson , Kevin L. Gray , John D. Roberts , Corey E. Hoffman
发明人： Paul Wilson , Kevin L. Gray , John D. Roberts , Corey E. Hoffman
IPC分类号： E21B33/127 , E21B47/06 , E21B49/08
CPC分类号： E21B33/127 , E21B47/06
摘要： Embodiments of the present invention generally provide a method, apparatus, and system for monitoring conditions in wellbore in real time prior to setting an inflatable element in the wellbore. The inflatable element is inflated with an inflation tool run on a cable with one or more electrically conductive wires (the cable is commonly referred to as a “wireline”). One or more sensors, internal or external to the inflation tool, are monitored before setting the inflatable element to verify well conditions are compatible with the inflatable element. The sensors may be internal or external to the inflation tool.
摘要翻译： 本发明的实施例通常提供一种用于在将可充气元件设置在井眼中之前实时监测井眼中的状况的方法，装置和系统。 充气元件用一根或多根导电线（电缆通常称为“电缆”）的电缆上运行的充气工具进行充气。 在设置充气元件之前，监视膨胀工具的内部或外部的一个或多个传感器，以验证井的条件与可膨胀元件是否相容。 传感器可以在充气工具的内部或外部。
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公开(公告)号：US06668930B2
公开(公告)日：2003-12-30
申请号：US10106178
申请日：2002-03-26
申请人： Corey E. Hoffman
发明人： Corey E. Hoffman
IPC分类号： E21B2900
CPC分类号： E21B43/103 , E21B19/22 , E21B29/10
摘要： The present invention provides methods for expanding coiled tubing within a wellbore in order to form a patch. In one aspect, an expansion assembly is run into the wellbore at the lower end of a string of coiled tubing. The expansion assembly includes a cutting tool and an expander tool. The coiled tubing is run into the wellbore such that the expander tool is adjacent a portion of surrounding casing or other tubular body to be patched. The expander tool is actuated so as to expand a selected portion of the coiled tubing into frictional engagement with the surrounding casing, thereby forming a patch within the wellbore. The cutting tool is actuated so as to sever the coiled tubing downhole above the patch. The severed coiled tubing is then pulled, thereby removing the expansion assembly from the wellbore as well.
摘要翻译： 本发明提供了用于在井筒内扩张连续油管以形成补片的方法。 在一个方面，膨胀组件在一排连续油管的下端进入井眼。 膨胀组件包括切割工具和膨胀器工具。 连续油管进入井眼，使得膨胀器工具邻近待修补的周围壳体或其他管状体的一部分。 膨胀器工具被致动，以便将所选择的连续油管部分膨胀成与周围的壳体摩擦接合，由此在井筒内形成一个补片。 切割工具被致动以便切断贴片上方的盘管。 然后拉出切断的连续油管，从而从井筒除去膨胀组件。
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公开(公告)号：US06779601B2
公开(公告)日：2004-08-24
申请号：US10346015
申请日：2003-01-15
申请人： Paul J. Wilson , Corey E. Hoffman
发明人： Paul J. Wilson , Corey E. Hoffman
IPC分类号： E21B33127
CPC分类号： E21B33/1295 , E21B33/1208 , E21B33/1212 , E21B33/127
摘要： An inflatable packing element for a bridge plug. The packing element has an anchor portion and a sealing cover portion, each of which is expanded in order to engage and seal a surrounding string of casing or borehole. The anchor portion has a minimum length defined by 2.63× the inner diameter of the surrounding pipe or other wellbore opening. At the same time, the anchor portion has a maximum length defined by approximately 49% of the length of the expanded portion of the packing element engaging the surrounding pipe or other wellbore opening.
摘要翻译： 一种用于桥塞的充气包装元件。 填料元件具有锚定部分和密封盖部分，每个部分被扩张以便接合和密封外壳或钻孔的周围的串。 锚定部分具有由周围管道或其他井筒开口的内径限定2.63倍的最小长度。 同时，锚固部分具有限定在与围绕管或其他井筒开口接合的填料元件的膨胀部分的长度的约49％的最大长度。
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公开(公告)号：US06568475B1
公开(公告)日：2003-05-27
申请号：US09608077
申请日：2000-06-30
IPC分类号： E21B4316
CPC分类号： F04D29/426 , E21B27/02 , E21B43/128 , F04B47/06 , F04D13/10 , H02K5/132
摘要： An isolation container designed for use with a downhole electric pump assembly commonly used in oil and gas drilling and production operations is disclosed. The isolation container has an annular housing with an axial inlet and outlet bore. A downhole electric pump assembly is centrally located within the pressure isolation container. The downhole electric pump assembly includes an electric pump positioned above and coupled to a motor seal section which is positioned above and coupled to a centrifugal pump, thereby providing a means to power the centrifugal pump. A blind coupling is positioned above the electric motor with a tubular member connected thereto and extending through the inlet of the isolation container. The tubular member connects to a tubing string supplying fluid from the surface. The blind coupling has a plurality of radially disposed ports to allow pressurized fluid from the surface to flow into the annulus between the downhole electric pump and the isolation container. This fluid then flows to inlet ports on the downhole electric pump. The pressure of the pressurized fluid is then boosted or increased by the operation of the downhole electric pump. The fluid is then discharged through a tubular member, which is sealed in the outlet bore of the pressure isolation container. The tubular member extends through a packer positioned below the pressure isolation container and the boosted pressure fluid is injected into the subsurface formation. An electrical cable from the surface supplies power to the electric motor and a check valve is provided on the upper end of the pressure isolation container for releasing entrained air in the pressure isolation container.
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公开(公告)号：US07073580B2
公开(公告)日：2006-07-11
申请号：US10938335
申请日：2004-09-10
申请人： Paul Wilson , Kevin L. Gray , John D. Roberts , Corey E. Hoffman
发明人： Paul Wilson , Kevin L. Gray , John D. Roberts , Corey E. Hoffman
IPC分类号： E21B49/08
CPC分类号： E21B33/127 , E21B47/06
摘要： Embodiments of the present invention generally provide a method, apparatus, and system for monitoring conditions in wellbore in real time prior to setting an inflatable element in the wellbore. The inflatable element is inflated with an inflation tool run on a cable with one or more electrically conductive wires (the cable is commonly referred to as a “wireline”). One or more sensors, internal or external to the inflation tool, are monitored before setting the inflatable element to verify well conditions are compatible with the inflatable element. The sensors may be internal or external to the inflation tool.
摘要翻译： 本发明的实施例通常提供一种用于在将可充气元件设置在井眼中之前实时监测井眼中的状况的方法，装置和系统。 充气元件用一根或多根导电线（电缆通常称为“电缆”）的电缆上运行的充气工具进行充气。 在设置充气元件之前，监视膨胀工具的内部或外部的一个或多个传感器，以验证井的条件与可膨胀元件是否相容。 传感器可以在充气工具的内部或外部。
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