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公开(公告)号：US20080190620A1
公开(公告)日：2008-08-14
申请号：US11705367
申请日：2007-02-12
申请人： Lisa L. Posevina , Gregory L. Hern
发明人： Lisa L. Posevina , Gregory L. Hern
CPC分类号： E21B21/103
摘要： A circulating sub is run in with the circulating port closed. A dart blocks a central passage and moves two concentric pistons in tandem to open the circulation port while retaining the dart. The outer piston shoulders out in the circulation port open position. A second dart lands on the first and with applied pressure moves the inner piston relative to the shouldered outer piston to close the circulation port and only then discharge both darts. Subs can be used in tandem as long as higher located subs accept larger darts than lower subs and preferably the two darts for each sub are the same size. The ejected darts can be used to pressure actuate a downhole tool like a packer.
摘要翻译： 循环子程序运行在循环端口关闭。 飞镖阻挡中央通道并串联移动两个同心活塞以打开循环口，同时保持飞镖。 外部活塞在循环端口打开位置。 第二个飞镖首先降落，施加的压力使内部活塞相对于肩部的外部活塞移动以关闭循环端口，然后仅释放两个飞镖。 只要较高的位置接受较大的飞镖而不是较低的下限，并且优选地，每个子的两个飞镖的大小相同，则可以串联使用。 弹出的飞镖可用于压力启动井下工具，如封隔器。
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公开(公告)号：US08511375B2
公开(公告)日：2013-08-20
申请号：US12772313
申请日：2010-05-03
CPC分类号： E21B37/02
摘要： A wellbore cleaning device having a unitary tool mandrel surrounded by a retaining sleeve that is rotatable with respect to the mandrel. A locking ring is used to secure the retaining sleeve to the mandrel. Cleaning blades are retained within recesses in the retaining sleeve and are biased radially outwardly from the recesses by springs.
摘要翻译： 井眼清洁装置具有由可相对于心轴旋转的保持套筒包围的整体工具心轴。 使用锁定环将固定套固定在心轴上。 清洁刀片保持在保持套筒的凹槽内并且通过弹簧从凹部径向向外偏压。
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公开(公告)号：US20110265988A1
公开(公告)日：2011-11-03
申请号：US12772313
申请日：2010-05-03
IPC分类号： E21B37/00
CPC分类号： E21B37/02
摘要： A wellbore cleaning device having a unitary tool mandrel surrounded by a retaining sleeve that is rotatable with respect to the mandrel. A locking ring is used to secure the retaining sleeve to the mandrel. Cleaning blades are retained within recesses in the retaining sleeve and are biased radially outwardly from the recesses by springs.
摘要翻译： 井眼清洁装置具有由可相对于心轴旋转的保持套筒包围的整体工具心轴。 使用锁定环将固定套固定在心轴上。 清洁刀片保持在保持套筒的凹槽内并且通过弹簧从凹部径向向外偏压。
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公开(公告)号：US07934559B2
公开(公告)日：2011-05-03
申请号：US11705367
申请日：2007-02-12
申请人： Lisa L. Posevina , Gregory L. Hern
发明人： Lisa L. Posevina , Gregory L. Hern
IPC分类号： E21B34/06
CPC分类号： E21B21/103
摘要： A circulating sub is run in with the circulating port closed. A dart blocks a central passage and moves two concentric pistons in tandem to open the circulation port while retaining the dart. The outer piston shoulders out in the circulation port open position. A second dart lands on the first and with applied pressure moves the inner piston relative to the shouldered outer piston to close the circulation port and only then discharge both darts. Subs can be used in tandem as long as higher located subs accept larger darts than lower subs and preferably the two darts for each sub are the same size. The ejected darts can be used to pressure actuate a downhole tool like a packer.
摘要翻译： 循环子程序运行在循环端口关闭。 飞镖阻挡中央通道并串联移动两个同心活塞以打开循环口，同时保持飞镖。 外部活塞在循环端口打开位置。 第二个飞镖首先降落，施加的压力使内部活塞相对于肩部的外部活塞移动，以关闭循环端口，然后仅释放两个飞镖。 只要较高的位置接受较大的飞镖而不是较低的下限，并且优选地，每个子的两个飞镖的大小相同，则可以串联使用。 弹出的飞镖可用于压力启动井下工具，如封隔器。
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公开(公告)号：US20100096122A1
公开(公告)日：2010-04-22
申请号：US12578727
申请日：2009-10-14
IPC分类号： E21B37/00
摘要： Non-rotating tubular wellbore cleaning devices are described which include a central tool mandrel with radially surrounding stabilizers and a cleaning member subassembly. A rotational bearing is provided that is partially radially recessed, thereby improving the overall strength of the cleaning device.
摘要翻译： 描述了非旋转管状井眼清洁装置，其包括具有径向围绕的稳定器的中心工具心轴和清洁构件子组件。 提供部分径向凹入的旋转轴承，从而提高清洁装置的整体强度。
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公开(公告)号：US08739864B2
公开(公告)日：2014-06-03
申请号：US12826020
申请日：2010-06-29
IPC分类号： E21B23/00
CPC分类号： E21B21/103 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译： 一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。 该工具可通过具有带球座的活塞的致动机构在第一和第二操作位置之间移动。 该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。
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7.发明授权公开(公告)号：US08356671B2
公开(公告)日：2013-01-22
申请号：US12860985
申请日：2010-08-23
CPC分类号： E21B21/103 , E21B23/006 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat having a partially annular shape with an outer base and a plurality of retaining segments projecting radially inwardly therefrom. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译： 一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。 该工具可通过具有活塞的致动机构在第一操作位置和第二操作位置之间移动，所述活塞具有球座，其具有部分环形形状，其具有外基部和从其径向向内突出的多个保持段。 该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。
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公开(公告)号：US20120227973A1
公开(公告)日：2012-09-13
申请号：US13469852
申请日：2012-05-11
IPC分类号： E21B34/14
CPC分类号： E21B21/103 , E21B23/006 , E21B34/063 , E21B34/14
摘要： A wellbore tool which includes a housing having an axial flowbore and a piston sleeve movably disposed within the flowbore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a seat having a plurality of separate arcuate segments. The tool can be moved between first and second operating positions with the use of actuating plugs of different sizes that can be landed upon the seat.
摘要翻译： 一种井眼工具，其包括具有轴向流动孔的壳体和可移动地设置在所述流孔内的活塞套筒。 该工具可通过具有活塞的致动机构在第一操作位置和第二操作位置之间移动，该活塞具有多个单独的弧形段的座。 该工具可以在第一和第二操作位置之间移动，使用可以落在座椅上的不同尺寸的致动插头。
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公开(公告)号：US20110315389A1
公开(公告)日：2011-12-29
申请号：US12826020
申请日：2010-06-29
IPC分类号： E21B34/14
CPC分类号： E21B21/103 , E21B34/14
摘要： A tool for use in a wellbore which includes a housing having an axial flow bore and a piston sleeve moveably disposed within the flow bore. The tool is moveable between first and second operating positions by an actuation mechanism having a piston with a ball seat. The tool can be moved between first and second operating positions with the use of actuating balls of different sizes that can be landed upon the ball seat.
摘要翻译： 一种在井眼中使用的工具，其包括具有轴向流动孔的壳体和可移动地设置在流动孔内的活塞套筒。 该工具可通过具有带球座的活塞的致动机构在第一和第二操作位置之间移动。 该工具可以在第一和第二操作位置之间移动，使用可以落在球座上的不同尺寸的致动球。
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公开(公告)号：US06607031B2
公开(公告)日：2003-08-19
申请号：US09847916
申请日：2001-05-03
申请人： Gerald D. Lynde , Gregory L. Hern
发明人： Gerald D. Lynde , Gregory L. Hern
IPC分类号： E21B3108
CPC分类号： E21B37/00 , E21B27/005
摘要： A downhole debris filtering apparatus has the flow diverter retracted as the tool is run in. Settling velocity is the rate at which debris will fall through the fluid. Settling velocity is dependent on the density of the fluid and the debris density. If the fluid velocity exceeds the settling velocity, the debris will rise. The restricted annular area outside the screens raises the fluid velocity. Above the cup sleeve, the annular area increases significantly and the fluid velocity is reduce to below the settling velocity to allow debris to settle to the bottom of the tool. On run in, the fluid merely bypasses on the outside of the filter. Large debris will settle into the tool as described. When pulled out of the hole the swab cup/flow diverter is actuated into casing or liner wall contact and a large passage is opened to allow flow though the filter. Small debris that has risen above the tool will be captured as the fluid is filtered through the screen. Another embodiment with a non-retractable cup uses a sliding sleeve valve with a large open area.
摘要翻译： 井下碎屑过滤装置在工具运行时具有收缩的分流器。沉降速度是碎屑通过流体落下的速率。 沉降速度取决于流体的密度和碎屑密度。 如果流体速度超过沉降速度，碎屑将上升。 屏幕外部受限制的环形区域提高了流体速度。 在杯套之上，环形区域显着增加，并且流体速度降低到低于沉降速度以允许碎屑沉降到工具的底部。 在运行时，流体只能绕过过滤器的外部。 如上所述，大碎片将沉入工具中。 当从孔中拉出时，将拭子杯/流动分流器启动到壳体或衬套壁接触中，并且打开大通道以允许流过过滤器。 当液体通过屏幕过滤时，已经上升到工具上方的小碎屑将被捕获。 具有不可缩回杯的另一实施例使用具有大开口面积的滑动套筒阀。
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