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公开(公告)号：US07337847B2
公开(公告)日：2008-03-04
申请号：US10531984
申请日：2003-10-17
IPC分类号： E21B34/12
CPC分类号： E21B23/006 , E21B21/103
摘要： A downhole apparatus which can be used as multi-cycle circulating subs utilized in downhole drilling operations, includes a piston (242) slidably mounted in a body between positions in which at least one aperture in the body is opened and closed. Movement of the piston (242) is controlled by a pin (86), secured to one of the body and a control member, and a control groove (52) formed in the other of the body and control member for receiving a portion of the pin. An arrangement of elements (232, 276) respectively connected to the control member and body is such as to normally resist axial movement of the control member from a first axial position to a second axial position. A spring (44) is located in a chamber for biasing the piston (242). The chamber is vented by an opening in the body.
摘要翻译： 可用作井下钻井操作中的多循环循环辅助井的井下装置包括活塞（242），该活塞可滑动地安装在主体中，该主体中的至少一个孔被打开和关闭。 活塞（242）的移动由固定到主体和控制构件中的一个的销（86）控制，以及形成在主体和控制构件中的另一个中的控制槽（52），用于接收一部分 销。 分别连接到控制构件和主体的元件（232,276）的布置通常抵抗控制构件从第一轴向位置到第二轴向位置的轴向移动。 弹簧（44）位于用于偏压活塞（242）的腔室中。 房间由身体的开口排出。
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公开(公告)号：US07036580B2
公开(公告)日：2006-05-02
申请号：US10416889
申请日：2002-07-30
申请人： Bruce McGarian , Ian A. Gillies
发明人： Bruce McGarian , Ian A. Gillies
IPC分类号： E21B23/02 , E21B17/046
摘要： The present invention relates to downhole apparatus for limiting rotation of a rotor (4) relative to a stator (8) associated with said rotor (4). Apparatus according to the invention is provided with a locking member (12) movable from a first axial position to a second axial position by the application of a static fluid pressure to a differential area of said locking member (12). The apparatus is characterised by means for selectively applying static fluid pressure to said differential area of said locking member (12).
摘要翻译： 本发明涉及用于限制转子（4）相对于与所述转子（4）相关联的定子（8）旋转的井下装置。 根据本发明的装置设置有通过将静态流体压力施加到所述锁定构件（12）的差动区域而从第一轴向位置移动到第二轴向位置的锁定构件（12）。 该装置的特征在于用于选择性地将静态流体压力施加到所述锁定构件（12）的所述差动区域的装置。
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公开(公告)号：US07669664B2
公开(公告)日：2010-03-02
申请号：US10530486
申请日：2003-12-02
IPC分类号： E21B23/00
CPC分类号： E21B41/0042 , E21B41/0035
摘要： The present invention relates to a downhole tool (102) for selectively opening and closing a lateral borehole extending from a primary borehole. The tool (102) comprises a body (104) incorporating a wall provided with an opening (116) extending therethrough; a deflector member (106) slidably mounted in the body (104) and having a deflecting surface (126) for deflecting, in use, downhole equipment laterally within the body (104). The deflector member (106) is slidable between an open position, in which the deflecting surface is located adjacent and facing towards said opening so that, in use, downhole equipment laterally deflected by the deflecting surface is directed through said opening, and a closed position, in which the deflecting surface is oriented relative to said opening so as to prevent downhole equipment from being laterally deflected through said opening during use. In either position, equipment may pass into the primary borehole downhole of the primary/lateral junction. The tool (102) also comprises constraining means (138, 140) for restricting movement of the whipstock relative to the body.
摘要翻译： 本发明涉及一种用于选择性地打开和关闭从主钻孔延伸的侧向钻孔的井下工具（102）。 工具（102）包括主体（104），其包括设置有延伸穿过其中的开口（116）的壁; 一个可滑动地安装在本体（104）中并具有偏转表面（126）的偏转器构件（106），用于在使用中在主体（104）内横向地偏转井下设备。 偏转构件（106）可以在打开位置之间滑动，偏转表面位于其中并且面向所述开口，使得在偏转表面侧向偏转的井下设备被引导通过所述开口，并且闭合位置 ，其中所述偏转表面相对于所述开口定向，以防止井下设备在使用期间被横向偏转穿过所述开口。 在任一位置，设备可能进入主/横向连接点的井下主要井眼。 工具（102）还包括用于限制造斜器相对于身体运动的约束装置（138,140）。
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公开(公告)号：US06899179B2
公开(公告)日：2005-05-31
申请号：US10276546
申请日：2001-04-24
申请人： Bruce McGarian , Ian A. Gillies
发明人： Bruce McGarian , Ian A. Gillies
CPC分类号： E21B23/006 , E21B21/103
摘要： Bypass valve for use in wellbores, particularly during the setting of hydraulic anchor packers, a bypass valve is provided with a body (4) incorporating a wall provided with at least one opening (20) and a piston (30) slidably mounted and having a longitudinal bore extending therethrough. The piston (30) is movable between a first position, in which the bore of the piston (30) is substantially isolated from the exterior of the body (4), and a second position in which a passage is provided from the bore of the piston (30) to the exterior of the body (4). Constraining means (42, 52) prevent movement of the piston (30) from the first to the second position. Overriding means are provided to permit movement to the second position.
摘要翻译： 旁通阀用于井眼，特别是在液压锚栓封隔器的设置期间，旁通阀设置有主体（4），该主体包括设置有至少一个开口（20）的壁，以及可滑动地安装的活塞（30） 纵向孔延伸穿过其中。 活塞（30）可在其中活塞（30）的孔基本上与主体（4）的外部隔开的第一位置和第二位置之间移动，在第二位置，通道 活塞（30）到主体（4）的外部。 约束装置（42,52）防止活塞（30）从第一位置移动到第二位置。 提供覆盖装置以允许移动到第二位置。
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