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公开(公告)号：US07497259B2
公开(公告)日：2009-03-03
申请号：US11610914
申请日：2006-12-14
IPC分类号： E21B43/112 , E21B43/114 , E21B43/116 , E21B43/119
CPC分类号： E21B43/114 , E21B23/006 , E21B43/119
摘要： A technique is provided to form perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired arrangement. The perforating device is lowered to a desired location in the wellbore and then moved incrementally to enable sequential perforations in the desired arrangement.
摘要翻译： 提供了一种在井眼中形成穿孔的技术。 通过穿孔装置仔细地控制穿孔的形成，以产生所需布置的一系列连续穿孔。 穿孔装置下降到井眼中的期望位置，然后逐渐移动以使得能够以期望的布置顺序穿孔。
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公开(公告)号：US20070175637A1
公开(公告)日：2007-08-02
申请号：US11610914
申请日：2006-12-14
IPC分类号： E21B43/11
CPC分类号： E21B43/114 , E21B23/006 , E21B43/119
摘要： A technique is provided to form perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired arrangement. The perforating device is lowered to a desired location in the wellbore and then moved incrementally to enable sequential perforations in the desired arrangement.
摘要翻译： 提供了一种在井眼中形成穿孔的技术。 通过穿孔装置仔细地控制穿孔的形成，以产生所需布置的一系列连续穿孔。 穿孔装置下降到井眼中的期望位置，然后逐渐移动以使得能够以期望的布置顺序穿孔。
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公开(公告)号：US07918279B2
公开(公告)日：2011-04-05
申请号：US12356573
申请日：2009-01-21
IPC分类号： E21B43/112 , E21B43/114 , E21B43/116 , E21B43/119
CPC分类号： E21B43/114 , E21B23/006 , E21B43/119
摘要： A technique of forming perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired arrangement. The perforating device is lowered to a desired location in the wellbore and then moved incrementally to enable sequential perforations in the desired arrangement.
摘要翻译： 在井眼中形成穿孔的技术。 通过穿孔装置仔细地控制穿孔的形成，以产生所需布置的一系列连续穿孔。 穿孔装置下降到井眼中的期望位置，然后逐渐移动以使得能够以期望的布置顺序穿孔。
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公开(公告)号：US20090120645A1
公开(公告)日：2009-05-14
申请号：US12356573
申请日：2009-01-21
IPC分类号： E21B43/11 , E21B43/112 , E21B43/114
CPC分类号： E21B43/114 , E21B23/006 , E21B43/119
摘要： A technique is provided to form perforations in a wellbore. The formation of perforations is carefully controlled by a perforating device to create a series of sequential perforations in a desired arrangement. The perforating device is lowered to a desired location in the wellbore and then moved incrementally to enable sequential perforations in the desired arrangement.
摘要翻译： 提供了一种在井眼中形成穿孔的技术。 通过穿孔装置仔细地控制穿孔的形成，以产生所需布置的一系列连续穿孔。 穿孔装置下降到井眼中的期望位置，然后逐渐移动以使得能够以期望的布置顺序穿孔。
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公开(公告)号：US07493960B2
公开(公告)日：2009-02-24
申请号：US11533181
申请日：2006-09-19
IPC分类号： E21B17/02
摘要： A connector is provided that enables connection between two parts without rotation of either of the two parts. The connector comprises a first part with N engagement members; a second part with N+1 engagement members; and a sleeve having a first and second end, the first end having N engagement members for engaging the N engagement members of the first part, the second end having N+1 engagement members for engaging the N+1 engagement members of the second end.
摘要翻译： 提供连接器，其能够在两部分之间进行连接，而不会转动两部分之一。 连接器包括具有N个接合构件的第一部分; 第二部分与N + 1参与成员; 以及具有第一和第二端的套筒，所述第一端具有用于接合所述第一部分的N个接合构件的N个接合构件，所述第二端具有用于接合所述第二端的N + 1接合构件的N + 1接合构件。
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6.发明授权
公开(公告)号：US5660241A
公开(公告)日：1997-08-26
申请号：US575942
申请日：1995-12-20
CPC分类号： E21B17/07
摘要： A drilling tool, adapted to drill a wellbore in an earth formation, comprises a weight on bit equalizer shock sub. The weight on bit equalizer shock sub includes a precharged nitrogen chamber and additional chambers, the nitrogen in the nitrogen chamber adapted to telescopically open the equalizer shock sub during the drilling of the wellbore thereby maintaining a constant weight or force on the drill bit during the drilling operation. A force resultant from the pressurized nitrogen exists in the nitrogen chamber and additional forces resultant from a pressurized wellbore fluid exist in the additional chambers. The shock sub is specially designed in a particular manner to cause the sum of the force of the nitrogen in the nitrogen chamber and the additional forces of the wellbore fluid in the additional chambers to be equal solely to the force of the nitrogen in the nitrogen chamber. As a result, the weight or force on the drill bit is constant when the sum of the force in the nitrogen chamber and the additional forces in the additional chambers is equal solely to the force of the nitrogen in the nitrogen chamber. In a preferred, second embodiment, when the additional chambers include an atmospheric chamber, the weight or force on the drill bit is constant when the cross sectional area of the atmospheric chamber is equal to the cross sectional area of the nitrogen chamber. As a result, the only force on the drill bit during drilling is the force of the precharged nitrogen in the nitrogen chamber and consequently a constant weight or force on the drill bit is maintained during the drilling operation.
摘要翻译： 适于在地层中钻井的钻孔工具包括钻头均衡器冲击副的重量。 位均衡器冲击副的重量包括预充氮室和附加室，氮室中的氮适于在钻井期间可伸缩地打开均衡器冲击次级，从而在钻孔期间在钻头上保持恒定的重量或力 操作。 在氮气室中存在由加压氮产生的力，并且在附加室中存在由加压井筒流体产生的附加力。 冲击副特别设计成使得氮气室中的氮气的总和和附加室中的井眼流体的附加力的总和仅等于氮气室中的氮气的力 。 因此，当氮气室中的力和附加室中的附加力的总和等于氮室中的氮的力时，钻头上的重量或力是恒定的。 在优选的第二实施例中，当附加室包括大气室时，当大气室的横截面面积等于氮室的横截面面积时，钻头上的重量或力是恒定的。 因此，在钻孔期间钻头上的唯一力是氮气室中预充氮的力，因此在钻井操作期间保持钻头上恒定的重量或力。
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7.发明授权Selective direct and reverse circulation check valve mechanism for coiled tubing 有权用于连续油管的选择性直接和反向循环止回阀机构公开(公告)号：US06889771B1
公开(公告)日：2005-05-10
申请号：US10254134
申请日：2002-09-25
CPC分类号： E21B23/006 , E21B34/10 , E21B34/103 , E21B34/12 , E21B2034/005
摘要： A method and apparatus for selectively actuating a dual check valve assembly within a well for a direct circulating operational mode or a reverse circulating operational mode. A tubular housing which may be connected to well tubing is provided with a check valve assembly and may be provided with a rotatable J-slot mode indexing sleeve having an internal J-slot geometry. An inner tubular member which also may be connected to well tubing is linearly movable within the tubular housing to a valve open position, an indexing position and a valve enabled position being controlled by the J-slot geometry of the J-slot indexing sleeve or being controlled by moving the inner tubular element and resisting movement of the tubular housing. Relative positioning of the inner tubular member and the tubular housing to selective valve mode positions may also be achieved responsive to fluid flow, by mechanical compression, or by motion operation.
摘要翻译： 一种用于在直接循环操作模式或反向循环操作模式中选择性地致动井内的双止回阀组件的方法和装置。 可以连接到井管的管状壳体设置有止回阀组件，并且可以设置有具有内部J形槽几何形状的可旋转的J型槽模式分度套筒。 还可以连接到井管的内部管状构件可在管状壳体内线性移动到阀打开位置，分度位置和阀启用位置由J形槽索引套管的J形槽几何形状控制，或者 通过移动内部管状元件并抵抗管状壳体的运动来控制。 内部管状构件和管状壳体相对于选择性阀模式位置的定位也可以通过机械压缩或通过运动操作来实现。
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公开(公告)号：US4660637A
公开(公告)日：1987-04-28
申请号：US774979
申请日：1985-09-11
IPC分类号： E21B23/06 , E21B33/1295 , E21B43/04 , E21B33/128 , E21B33/129
CPC分类号： E21B23/06 , E21B33/1295 , E21B43/04
摘要： A packer and service tool assembly for oil or gas well preparation includes a disengageable coupling mechanism which permits the tool to be screwed into and out of the packer and which can be hydraulically disengaged so that the tool can be removed without applying torque to the tool or workstring. A releaseable ratchet mechanism is also provided in the packer for trapping the setting loads when the packer is set in the casing. The ratchet mechanism is releasable by pulling up a housing portion which cammingly engages collapsible ratchet fingers thereby disengaging the ratchet finger trapping teeth from a stationary ratchet ring.
摘要翻译： 用于油气井准备的封隔器和维修工具组件包括可脱开的联接机构，其允许工具被拧入和离开封隔器，并且可以液压地脱开，从而可以在不向工具施加扭矩的情况下移除工具， 工作串 封隔器中还设置有可释放的棘轮机构，用于在封隔器置于壳体中时捕获设定负载。 棘轮机构可以通过拉起凸起地接合可折叠棘轮指状物的壳体部分而释放，从而将棘轮棘爪捕捉齿与固定棘轮环分离。
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公开(公告)号：US4440230A
公开(公告)日：1984-04-03
申请号：US220240
申请日：1980-12-23
申请人： Howard L. McGill
发明人： Howard L. McGill
CPC分类号： E21B49/001 , E21B34/10 , E21B2034/002
摘要： In accordance with an illustrative embodiment of the present invention, a pressure controlled well tester apparatus having a full-bore ball valve closure element includes valve actuator means responsive to changes in the pressure of fluids in the well annulus for moving the ball valve between its open and closed positions, and bias means responsive to the hydrostatic pressure of fluids in the well bore for assisting in moving the ball valve to its fully closed position.
摘要翻译： 根据本发明的说明性实施例，具有全孔球阀闭合元件的压力控制井测试仪装置包括响应于井环中的流体的压力变化的阀致动器装置，用于在其打开之间移动球阀 和关闭位置，以及响应于井眼中的流体的静水压力的偏压装置，用于帮助将球阀移动到其完全关闭位置。
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公开(公告)号：US4406461A
公开(公告)日：1983-09-27
申请号：US357485
申请日：1982-03-12
申请人： Howard L. McGill
发明人： Howard L. McGill
IPC分类号： B29C70/86 , E21B33/127 , F16J15/46
CPC分类号： E21B33/1277 , B29C70/86
摘要： An inflatable well packer apparatus comprises a generally tubular resilient body that is internally reinforced by a plurality of biased plys or layers of tire cording. The ends of the tire cording layers extend beyond the ends of the resilient body where they are secured to end fitting assemblies having gripping engagement therewith.
摘要翻译： 一种充气式井封包装机包括一个通常管状的弹性体，该弹性体由多个偏压帘布层或多层轮胎帘线内部加强。 轮胎帘线层的端部延伸超过弹性体的端部，在那里它们被固定到具有与其夹持接合的端部配件组件。
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