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1.发明授权公开(公告)号：US08297368B2
公开(公告)日：2012-10-30
申请号：US12607712
申请日：2009-10-28
IPC分类号： E21B33/12
CPC分类号： E21B43/24 , E21B33/1212 , E21B33/127
摘要： The present invention is directed to systems and methods for initiating annular obstructions in wells used in, or in support of, enhanced oil recovery operations—particularly enhanced oil recovery (EOR) efforts involving steam injection (e.g., steam flooding). In at least some instances, system and method embodiments of the present invention utilize one or more passively-activated annular obstruction devices (and/or hybrid active/passive devices) for inducing annular obstruction, wherein the associated passive or hybrid activation is at least partially controlled by thermal means such that it can be deemed to be thermally-directed or thermally-controlled. Such thermally-directed passive activation can afford considerably more control over the annular obstruction process and, correspondingly, over the overall steam injection into the formation and associated reservoir—thereby providing more efficient recovery of hydrocarbons.
摘要翻译： 本发明涉及在用于或支持强化采油操作的井中引发环形障碍物的系统和方法，特别是涉及蒸汽喷射（例如，蒸汽驱油）的强化采油（EOR）的努力。 在至少一些情况下，本发明的系统和方法实施例利用一个或多个被动激活的环形阻塞装置（和/或混合主动/被动装置）来诱导环形阻塞，其中相关联的被动或混合式激活至少部分地 由热装置控制，使得其可以被认为是热定向的或热控制的。 这种热定向的被动激活可以提供对环形阻塞过程的相当大的控制，并且相应地可以在总体蒸汽注入地层和相关联的储层中，从而提供更有效的烃回收。
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2.发明申请公开(公告)号：US20110094756A1
公开(公告)日：2011-04-28
申请号：US12607712
申请日：2009-10-28
IPC分类号： E21B33/12
CPC分类号： E21B43/24 , E21B33/1212 , E21B33/127
摘要： The present invention is directed to systems and methods for initiating annular obstructions in wells used in, or in support of, enhanced oil recovery operations—particularly enhanced oil recovery (EOR) efforts involving steam injection (e.g., steam flooding). In at least some instances, system and method embodiments of the present invention utilize one or more passively-activated annular obstruction devices (and/or hybrid active/passive devices) for inducing annular obstruction, wherein the associated passive or hybrid activation is at least partially controlled by thermal means such that it can be deemed to be thermally-directed or thermally-controlled. Such thermally-directed passive activation can afford considerably more control over the annular obstruction process and, correspondingly, over the overall steam injection into the formation and associated reservoir—thereby providing more efficient recovery of hydrocarbons.
摘要翻译： 本发明涉及在用于或支持强化采油操作的井中引发环形障碍物的系统和方法，特别是涉及蒸汽喷射（例如，蒸汽驱油）的强化采油（EOR）的努力。 在至少一些情况下，本发明的系统和方法实施例利用一个或多个被动激活的环形阻塞装置（和/或混合主动/被动装置）来诱导环形阻塞，其中相关联的被动或混合式激活至少部分地 由热装置控制，使得其可以被认为是热定向的或热控制的。 这种热定向的被动激活可以提供对环形阻塞过程的相当大的控制，并且相应地可以在总体蒸汽注入地层和相关联的储层中，从而提供更有效的烃回收。
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公开(公告)号：US07823637B2
公开(公告)日：2010-11-02
申请号：US11968994
申请日：2008-01-03
CPC分类号： E21B43/04 , E21B2034/005
摘要： A fluid loss valve is disposed in a wash pipe in a gravel packing assembly. It is preferably held open initially and when in the process it is time for the valve to be able to go closed a pulling force is applied that creates relative movement to either close the valve or allow it to close without release of the assembly when under tension. This allows a surface signal that the valve is to be released for closure. The tension is relieved before string movement with the valve can occur. This can happen by slacking off before picking up again or through other time delay features that allow the tension to be removed and a lock to collapse before a lift force is applied for subsequent gravel packing operations. The valve in its closed position acts to eliminate fluid loss when excess gravel is reversed out.
摘要翻译： 流体损失阀设置在砾石充填组件的洗涤管中。 优选地，其最初保持打开，并且当在该过程中时间是阀能够关闭时施加的拉力产生相对运动以关闭阀门或允许其在处于张紧状态时没有释放组件而关闭 。 这允许阀被释放以关闭的表面信号。 弦线运动之前释放张力可能会发生阀门。 这可以通过在再次起动之前松开，或者通过允许张力被除去的其它时间延迟特征，并且在施加提升力以用于随后的砾石包装操作之前锁定塌陷。 阀门处于关闭位置时，可以减少过量砾石反向流失时的流体损失。
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公开(公告)号：US20090173503A1
公开(公告)日：2009-07-09
申请号：US11968994
申请日：2008-01-03
IPC分类号： E21B34/16
CPC分类号： E21B43/04 , E21B2034/005
摘要： A fluid loss valve is disposed in a wash pipe in a gravel packing assembly. It is preferably held open initially and when in the process it is time for the valve to be able to go closed a pulling force is applied that creates relative movement to either close the valve or allow it to close without release of the assembly when under tension. This allows a surface signal that the valve is to be released for closure. The tension is relieved before string movement with the valve can occur. This can happen by slacking off before picking up again or through other time delay features that allow the tension to be removed and a lock to collapse before a lift force is applied for subsequent gravel packing operations. The valve in its closed position acts to eliminate fluid loss when excess gravel is reversed out.
摘要翻译： 流体损失阀设置在砾石充填组件的洗涤管中。 优选地，其最初保持打开，并且当在该过程中时间是阀能够关闭时施加的拉力产生相对运动以关闭阀门或允许其在处于张紧状态时没有释放组件而关闭 。 这允许阀被释放以关闭的表面信号。 弦线运动之前释放张力可能会发生阀门。 这可以通过在再次起动之前松开，或者通过允许张力被除去的其它时间延迟特征，并且在施加提升力以用于随后的砾石包装操作之前锁定塌陷。 阀门处于关闭位置时，可以减少过量砾石反向流失时的流体损失。
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公开(公告)号：US20080277114A1
公开(公告)日：2008-11-13
申请号：US11746991
申请日：2007-05-10
IPC分类号： E21B43/08
CPC分类号： E21B43/04 , E21B43/08 , E21B43/088
摘要： A transition piece is provided near an end of a screen assembly to allow transition from a lighter weight and collapse resistant pipe under the screen sections to a heavier wall and higher collapse strength pipe between the top of the screen and the isolation packer. When a screen out occurs, the heavier wall pipe can handle the new pressures that are applied to the formation and to the tubular to try to collapse it. The screen portion can still be built with thinner wall pipe as the screen out condition protects that pipe from collapse pressure because the fully gravel packed annular space keeps the surface applied pump pressure from exerting a collapse force on the base pipe under the screen. The internal diameter under the screen does not have to be reduced because the heavy wall pipe is not provided there. Above the screen, a heavy wall pipe can be provided because the absence of the screen layer allows more room for a larger pipe with thicker wall without decrease in internal diameter as compared to under the screen.
摘要翻译： 在屏幕组件的端部附近设置过渡件，以允许从屏幕部分下方的较轻重量和抗倒塌管道过渡到屏幕顶部和隔离封隔器之间的较重壁和较高的塌陷强度管。 当出现筛选时，较重的壁管可以处理施加到地层和管子的新压力以试图将其压扁。 屏幕部分仍然可以用更薄的壁管构建，因为屏幕排出状态保护管道免受坍塌压力，因为完全砾石填充的环形空间使表面施加的泵压力不会在屏幕下方的基管上施加塌陷力。 因为没有设置厚壁管，屏幕下方的内径不必减小。 在屏幕上方，可以提供厚壁管，因为与屏幕下方相比，没有屏幕层允许具有较厚壁而不减小内径的较大管道的空间更大。
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公开(公告)号：US07997344B2
公开(公告)日：2011-08-16
申请号：US11853288
申请日：2007-09-11
申请人： Thomas G. Corbett
发明人： Thomas G. Corbett
CPC分类号： E21B43/045
摘要： A crossover tool assembly is run in with a packer and after the packer is set it is released from the packer for independent movement. The assembly is picked up to allow spring loaded dogs to come out so that upon setting down weight the crossover assembly has an outer assembly that is supported on the packer mandrel. The crossover mandrel can then be set down and picked up to operate a j-slot mechanism in the crossover. Relative movement induced by the j-slot with the outer assembly of the crossover supported by the dogs allows a return path within the crossover to be opened or closed independent of any contact with the packer mandrel.
摘要翻译： 交换工具组件与封隔器一起运行，并且在封隔器设置之后，它从封隔器释放以进行独立运动。 拾取组件以允许弹簧加载的狗出来，使得在设置重量时，交叉组件具有支撑在封隔器心轴上的外部组件。 然后可以将交叉心轴设置下来并拾起以在交叉中操作j槽机构。 由j型槽引起的与由狗支撑的交叉的外部组件的相对运动允许跨接器内的返回路径被打开或关闭，而与打包器心轴的任何接触无关。
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公开(公告)号：US20090065193A1
公开(公告)日：2009-03-12
申请号：US11853288
申请日：2007-09-11
申请人： Thomas G. Corbett
发明人： Thomas G. Corbett
IPC分类号： E21B33/129 , E21B23/01
CPC分类号： E21B43/045
摘要： A crossover tool assembly is run in with a packer and after the packer is set it is released from the packer for independent movement. The assembly is picked up to allow spring loaded dogs to come out so that upon setting down weight the crossover assembly has an outer assembly that is supported on the packer mandrel. The crossover mandrel can then be set down and picked up to operate a j-slot mechanism in the crossover. Relative movement induced by the j-slot with the outer assembly of the crossover supported by the dogs allows a return path within the crossover to be opened or closed independent of any contact with the packer mandrel.
摘要翻译： 交换工具组件与封隔器一起运行，并且在封隔器设置之后，它从封隔器释放以进行独立运动。 拾取组件以允许弹簧加载的狗出来，使得在设置重量时，交叉组件具有支撑在封隔器心轴上的外部组件。 然后可以将交叉心轴设置下来并拾起以在交叉中操作j槽机构。 由j型槽引起的与由狗支撑的交叉的外部组件的相对运动允许跨接器内的返回路径被打开或关闭，而与打包器心轴的任何接触无关。
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公开(公告)号：US07290610B2
公开(公告)日：2007-11-06
申请号：US11117982
申请日：2005-04-29
IPC分类号： E21B43/04
CPC分类号： E21B43/045 , E21B34/06 , E21B43/04
摘要： A frac pack system and method for operating a frac pack system wherein an isolation string assembly has a lower circulation valve with lateral flow ports that are operated to an open position without the use of shifters on a wash pipe. The isolation string assembly is incorporated into a frac pack assembly within a wellbore and includes an upper sleeve tool that provides selective production of fluids through the frac pack assembly. In addition, the isolation string includes a lower circulation valve having a sliding sleeve that is shiftable from an open position to a closed position upon receipt of a suitable pressure differential. This configuration is particularly valuable for permitting monitoring of pressure or other conditions in the annulus of the wellbore portion being packed during frac pack operations. Further, the lower circulation valve tool can be used to selectively allow fluid returns during the frac pack operation.
摘要翻译： 一种用于操作压裂包装系统的压裂包装系统和方法，其中隔离串组件具有下部循环阀，所述下部循环阀具有横向流动端口，所述侧部流动端口在洗涤管上不使用移位器而操作到打开位置。 隔离柱组件被并入到井眼内的压裂组件中，并且包括上套筒工具，其提供通过压裂组件的流体的选择性生产。 此外，隔离串包括具有滑动套筒的下循环阀，该滑动套筒在接收到合适的压力差时可从打开位置移动到关闭位置。 这种配置对于允许监测在压裂包装操作期间包装的井筒部分的环空中的压力或其他条件是特别有价值的。 此外，下循环阀工具可用于在压裂包装操作期间选择性地允许流体返回。
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公开(公告)号：US07278493B2
公开(公告)日：2007-10-09
申请号：US11085381
申请日：2005-03-21
IPC分类号： E21B33/10
CPC分类号： E21B47/09 , E21B17/1028 , E21B33/04 , E21B33/10
摘要： Systems and methods for guiding a seal assembly associated with a string of production tubing, or a tubular member generally, into a receptacle within a wellbore. The muleshoe of a seal assembly is provided with an auto entry guide device in the form of a guide member or kickover lug that is radially moveable with respect to the muleshoe. The kickover lug is collapsible radially inwardly and biased radially outwardly. The auto entry guide device may also include a centralizer bowspring that is mounted upon the muleshoe. Additionally, the muleshoe is mounted for rotational movement with respect to the seal assembly.
摘要翻译： 用于将与一串生产管道相关联的密封组件或通常管状构件引导到井筒内的容器中的系统和方法。 密封组件的毛茸茸具有引导构件或踢脚蹼的形式的自动进入引导装置，其可相对于骡壳径向移动。 脚踢脚杆径向向内折叠并径向向外偏压。 自动进入引导装置还可以包括安装在鼠笼上的扶正器弓形弹簧。 此外，马蹄形结构件被安装成相对于密封组件旋转运动。
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公开(公告)号：US07032666B2
公开(公告)日：2006-04-25
申请号：US10631263
申请日：2003-07-31
申请人： Thomas G. Corbett
发明人： Thomas G. Corbett
CPC分类号： E21B34/14 , E21B43/045
摘要： A gravel packing method and apparatus so that when setting the packer, a ball is dropped to a seat that is isolated from the effects of formation pressures when trying to set the packer. This is accomplished by isolation of the gravel pack outlet port when setting the packer and locating the ball seat in a position where the effects of formation pressure are irrelevant. Additionally, by positioning the evacuation ports above a seal bore in the screen extension during circulation to deposit gravel and further putting check valves in the evacuation ports, the evacuation step after circulation can be accomplished without having to reposition the crossover.
摘要翻译： 一种砾石包装方法和装置，使得当设置封隔器时，当试图设置封隔器时，将球落到与地层压力的影响隔离的座椅上。 这是通过在设置封隔器时将砾石包装出口隔离并将球座定位在地层压力的影响无关的位置来实现的。 此外，通过在循环期间将排出口定位在筛网延伸部中的密封孔上方以沉积砾石并进一步将止回阀放入抽空口中，可以实现循环后的抽空步骤，而无需重新定位交叉。
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