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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：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：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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5.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：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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7.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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公开(公告)号：US07857067B2
公开(公告)日：2010-12-28
申请号：US12253474
申请日：2008-10-17
IPC分类号： E21B21/10
CPC分类号： E21B17/20 , E21B21/08 , E21B41/0035 , E21B47/18
摘要： A backpressure valve. The backpressure valve may be configured to maintain a substantially controlled pressure in bottom hole assembly while simultaneously being compatible with a pressure pulse tool downhole thereof. The backpressure valve includes pressure generating capacity below its internal valve assembly so as to avoid the tendency of the assembly to throttle open and closed. Furthermore, the pressure generation is achieved in a manner avoiding cavitation. As a result, once the backpressure valve is opened, the pressure pulse tool is able to reliably communicate with surface equipment at the oilfield.
摘要翻译： 背压阀。 背压阀可以被配置为在底孔组件中保持基本受控的压力，同时与其井下的压力脉冲工具兼容。 背压阀包括在其内部阀组件下方的压力发生能力，以避免组件节流打开和关闭的趋势。 此外，以避免空化的方式实现压力产生。 结果，一旦背压阀打开，压力脉冲工具能够可靠地与油田的表面设备连通。
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公开(公告)号：US5417291A
公开(公告)日：1995-05-23
申请号：US62645
申请日：1993-05-14
申请人： Lawrence J. Leising
发明人： Lawrence J. Leising
IPC分类号： E21B17/046 , E21B17/06 , E21B34/14
CPC分类号： E21B34/14 , E21B17/046 , E21B17/06
摘要： A tubular connector for connecting a drilling tool assembly to a drill string for use in CTD operations. The connector has a fluid flow passage therethrough, and comprises: a first part connected to the drill string and a second part connected to the drilling tool assembly; inter engaging formations such as splines provided on the first and second parts such that, when engaged, the formations do not prevent relative axial movement of the first and second parts but prevent relative rotation thereof; a threaded collar provided around adjacent end portions of the first and second parts for axial location thereof when connected. The connector can also include a non-return valve assembly located in the fluid flow passage; a pressure actuated piston device in the fluid flow passage for disconnecting the drilling tool assembly from the chill string; and a pressure actuated valve which, when operated, allows fluid communication between the fluid flow passage and an exterior region of the connector.
摘要翻译： 一种用于将钻具组件连接到用于CTD操作的钻柱的管状连接器。 连接器具有通过其的流体流动通道，并且包括：连接到钻柱的第一部分和连接到钻具组件的第二部分; 相互接合的结构，例如设置在第一和第二部分上的花键，使得当接合时，结构不阻止第一和第二部分的相对轴向运动，而是防止其相对旋转; 当连接时，设置在第一和第二部分的相邻端部周围的螺纹轴环用于其轴向位置。 连接器还可以包括位于流体流动通道中的止回阀组件; 流体流动通道中的压力致动的活塞装置，用于将钻井工具组件与冷却柱分离; 以及压力致动阀，其在操作时允许流体流动通道和连接器的外部区域之间的流体连通。
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公开(公告)号：US06907927B2
公开(公告)日：2005-06-21
申请号：US10393285
申请日：2003-03-20
CPC分类号： E21B4/18 , E21B7/20 , E21B7/24 , E21B28/00 , E21B31/005 , E21B2023/008
摘要： An apparatus for use in a wellbore comprises a housing having a longitudinal axis and a mechanism having one or more impact elements adapted to move along the longitudinal axis in an oscillating manner to impart a back and forth force on the housing to vibrate the housing. In another arrangement, an apparatus for use in a wellbore comprises a housing and at least one impact element rotatably mounted in the housing. The at least one impact element is rotatable to oscillate back and forth to impart a vibration force to the housing.
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