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    Biodegradable downhole tools
    1.
    发明授权
    Biodegradable downhole tools 有权
    可生物降解的井下工具

    公开(公告)号：US07353879B2

    公开(公告)日：2008-04-08

    申请号：US10803689

    申请日：2004-03-18

    申请人： Bradley L. Todd ,  Phillip M. Starr ,  Loren C. Swor ,  Kenneth L. Schwendemann ,  Trinidad Munoz, Jr.

    发明人： Bradley L. Todd ,  Phillip M. Starr ,  Loren C. Swor ,  Kenneth L. Schwendemann ,  Trinidad Munoz, Jr.

    IPC分类号： E21B29/00

    CPC分类号： E21B23/00 ,  E21B33/12

    摘要： A disposable downhole tool or a component thereof comprises an effective amount of biodegradable material such that the tool or the component thereof desirably decomposes when exposed to a wellbore environment. In an embodiment, the biodegradable material comprises a degradable polymer. The biodegradable material may further comprise a hydrated organic or inorganic solid compound. The biodegradable material may also be selected to achieve a desired decomposition rate when the tool is exposed to the wellbore environment. In an embodiment, the disposable downhole tool further comprises an enclosure for storing a chemical solution that catalyzes decomposition. The tool may also comprise an activation mechanism for releasing the chemical solution from the enclosure. In various embodiments, the disposable downhole tool is a frac plug, a bridge plug, or a packer.

    摘要翻译： 一次性井下工具或其组件包括有效量的可生物降解的材料，使得当暴露于井眼环境时，该工具或其组分期望分解。 在一个实施方案中，生物可降解材料包含可降解聚合物。 可生物降解材料还可以包含水合有机或无机固体化合物。 当工具暴露于井眼环境时，还可以选择可生物降解的材料以达到期望的分解速率。 在一个实施例中，一次性井下工具还包括用于存储催化分解的化学溶液的外壳。 工具还可以包括用于将化学溶液从外壳释放的激活机构。 在各种实施例中，一次性井下工具是压裂塞，桥塞或封隔器。

    System and method for downhole tool system development
    5.
    发明授权
    System and method for downhole tool system development 有权
    井下工具系统开发的系统和方法

    公开(公告)号：US08818776B2

    公开(公告)日：2014-08-26

    申请号：US11200381

    申请日：2005-08-09

    申请人： Harold Kent Beck ,  Kenneth L. Schwendemann ,  David R. Larimore ,  Brandon B. Beaver ,  Alexander G. Krasovsky ,  Darrin N. Towers

    发明人： Harold Kent Beck ,  Kenneth L. Schwendemann ,  David R. Larimore ,  Brandon B. Beaver ,  Alexander G. Krasovsky ,  Darrin N. Towers

    IPC分类号： G06G7/48 ,  E21B47/00

    CPC分类号： E21B47/00 ,  G06F17/50

    摘要： A disclosed method of downhole tool system development comprises: receiving specifications of a downhole tool system that comprises multiple strings, each string having one or more components; and checking for interference between the multiple strings in an initial position. A disclosed system comprises: a memory that stores software; and a processor coupled to the memory to execute the software. The software causes the processor to provide a graphical user interface that enables a user to specify a downhole tool system having multiple strings, and to test the strings for diametrical overlap attributable to relative motion of the strings.

    摘要翻译： 所公开的井下工具系统开发方法包括：接收包括多个串的井下工具系统的规格，每个串具有一个或多个部件; 并检查初始位置处的多个串之间的干扰。 所公开的系统包括：存储软件的存储器; 以及耦合到所述存储器以执行所述软件的处理器。 软件使得处理器提供图形用户界面，使用户能够指定具有多个串的井下工具系统，并且测试由于弦的相对运动引起的径向重叠的弦。

    Wear-resistant, variable diameter expansion tool and expansion methods
    6.
    再颁专利
    Wear-resistant, variable diameter expansion tool and expansion methods 有权
    耐磨，可变直径膨胀工具和膨胀方法

    公开(公告)号：USRE42733E1

    公开(公告)日：2011-09-27

    申请号：US11408271

    申请日：2006-04-20

    申请人： John C. Gano ,  Kenneth L. Schwendemann ,  Darrin N. Towers ,  Ralph Harvey Echols ,  Perry Carter Shy

    发明人： John C. Gano ,  Kenneth L. Schwendemann ,  Darrin N. Towers ,  Ralph Harvey Echols ,  Perry Carter Shy

    IPC分类号： E21B43/10

    CPC分类号： E21B43/105

    摘要： The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may have wear faces attached to at least a portion of the outer periphery of a mandrel for contacting the interior surface of the pipe, tube, or screen during expansion. According to another aspect of the invention, an expansion tool has a controlled egress seal between the outer surface of the tool and the inside surface of the expandable tubular. According to another aspect of the invention, an automatically variable diameter expansion tool is provided having a variable diameter cone, which expands, and contracts based on input from one or more sensors. According to another aspect of the invention, an apparatus and method for expanding a length of screen assembly in a subterranean wellbore is provided.

    摘要翻译： 本发明提供了用于通过使膨胀工具轴向移动通过井径向膨胀展开在地下井中的管状物的装置和方法。 膨胀工具装置可以具有连接到心轴的外周的至少一部分的磨损面，用于在膨胀期间接触管，管或筛的内表面。 根据本发明的另一方面，膨胀工具在工具的外表面和可膨胀管的内表面之间具有受控的出口密封。 根据本发明的另一方面，提供了一种具有可变直径锥体的自动可变直径膨胀工具，其基于来自一个或多个传感器的输入而膨胀并收缩。 根据本发明的另一方面，提供了一种用于在地下井眼中扩展屏幕组件的长度的装置和方法。

    Valve
    8.
    发明授权
    Valve 失效
    阀

    公开(公告)号：US5050839A

    公开(公告)日：1991-09-24

    申请号：US310697

    申请日：1989-02-15

    申请人： Rennie L. Dickson ,  Craig W. Godfrey ,  Kenneth L. Schwendemann ,  Timothy J. Noack

    发明人： Rennie L. Dickson ,  Craig W. Godfrey ,  Kenneth L. Schwendemann ,  Timothy J. Noack

    IPC分类号： E21B29/08 ,  E21B34/00 ,  E21B34/10

    CPC分类号： E21B29/04 ,  E21B29/08 ,  E21B34/10 ,  E21B2034/002

    摘要： A valve employing a coupling disk to rotate the valve member so that rotative force is applied to the valve member in a direction away from the seat during opening of the valve and/or in a direction toward the seat during closing of the valve. Closing force is provided by a spring in a dome chamber and a gas charge in the dome chamber. A float valve controls fluid entry into the dome chamber to trap the gas charge therein while permitting the introduction of liquid from a balance-closure assist line to increase the pressure of the gas charge and assist in closing the valve member.

    摘要翻译： 一种采用联接盘来旋转阀构件的阀，使得在阀的打开期间和/或在阀关闭期间朝向座椅的方向上，在远离阀座的方向上向阀构件施加旋转力。 闭合力由圆顶室中的弹簧和圆顶室中的气体填充提供。 浮阀控制流体进入穹顶室以将气体收集在其中，同时允许从平衡关闭辅助管线引入液体以增加气体充气的压力并帮助关闭阀构件。

    Wear-resistant, variable diameter expansion tool and expansion methods
    9.
    发明授权
    Wear-resistant, variable diameter expansion tool and expansion methods 有权
    耐磨，可变直径膨胀工具和膨胀方法

    公开(公告)号：US06722427B2

    公开(公告)日：2004-04-20

    申请号：US10047628

    申请日：2001-10-23

    申请人： John C. Gano ,  Kenneth L. Schwendemann ,  Darrin N. Towers ,  Ralph Harvey Echols ,  Perry Carter Shy

    发明人： John C. Gano ,  Kenneth L. Schwendemann ,  Darrin N. Towers ,  Ralph Harvey Echols ,  Perry Carter Shy

    IPC分类号： E21B2300

    CPC分类号： E21B43/105

    摘要： The inventions provide apparatus and methods for radially expanding a tubular deployed in a subterranean well by moving an expansion tool axially through the well. An expansion tool apparatus may have wear faces attached to at least a portion of the outer periphery of a mandrel for contacting the interior surface of the pipe, tube, or screen during expansion. According to another aspect of the invention, an expansion tool has a controlled egress seal between the outer surface of the tool and the inside surface of the expandable tubular. According to another aspect of the invention, an automatically variable diameter expansion tool is provided having a variable diameter cone, which expands, and contracts based on input from one or more sensors. According to another aspect of the invention, an apparatus and method for expanding a length of screen assembly in a subterranean wellbore is provided.

    摘要翻译： 本发明提供了用于通过使膨胀工具轴向移动通过井径向膨胀展开在地下井中的管状物的装置和方法。 膨胀工具装置可以具有连接到心轴的外周的至少一部分的磨损面，用于在膨胀期间接触管，管或筛的内表面。 根据本发明的另一方面，膨胀工具在工具的外表面和可膨胀管的内表面之间具有受控的出口密封。 根据本发明的另一方面，提供了一种具有可变直径锥体的自动可变直径膨胀工具，其基于来自一个或多个传感器的输入而膨胀并收缩。 根据本发明的另一方面，提供了一种用于在地下井眼中扩展屏幕组件的长度的装置和方法。