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公开(公告)号：US20050230151A1
公开(公告)日：2005-10-20
申请号：US10530486
申请日：2003-12-02
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，邻近并面向所述开口，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，并且关闭位置 ，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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2.发明授权公开(公告)号：US06702014B1
公开(公告)日：2004-03-09
申请号：US09744337
申请日：2001-03-08
申请人： Bruce McGarian , Ian Gillies
发明人： Bruce McGarian , Ian Gillies
IPC分类号： E21B2312
CPC分类号： E21B7/061
摘要： A well bore deflector tool which is used primarily for deflecting tools, lining and the like through a window which has been milled in the side of a well bore casing includes a deflector face (3) at an upper end thereof and slips (9, 10) for selectively gripping and releasing a tie back receptacle (8) and/or a well bore casing (6) at a location below the deflector face (3). The slips are operable for gripping in response to engagement of the deflector tool (1) with a tie back receptacle (8). Accordingly, the invention provides a simple and automatic device for locking the deflector tool in a required angular position.
摘要翻译： 用于主要用于通过在井筒壳体一侧研磨的窗口偏转工具，衬里等的井眼偏转器工具包括在其上端处的偏转器面（3）和滑动件（9,10 ），用于在偏转器面（3）下方的位置选择性地夹紧和释放系带后座（8）和/或井筒套（6）。 滑动件可操作用于响应于偏转器工具（1）与系带后座（8）的接合而夹持。 因此，本发明提供了一种用于将偏转器工具锁定在所需角度位置的简单且自动的装置。
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公开(公告)号：US06484802B1
公开(公告)日：2002-11-26
申请号：US09762252
申请日：2001-03-16
申请人： Bruce McGarian , Ian Gillies
发明人： Bruce McGarian , Ian Gillies
IPC分类号： E21B3702
CPC分类号： E21B37/02
摘要： This invention relates to apparatus for scraping the inner surface of a wellbore. A scraper assembly (2) is provided comprising a scraper element (6) incorporating: a generally cylindrical member defined by a wall having a slot extending through the wall thickness; and at least one tooth member provided on the outer surface of the wall for scraping engagement with a wellbore. The present invention thereby provides a scraper assembly which is relatively convenient and inexpensive to manufacture and which may be considered as a disposable item of downhole equipment.
摘要翻译： 本发明涉及刮削井筒内表面的装置。 一种刮刀组件（2），其包括刮刀元件（6），其包括：由壁限定的大致圆柱形构件，所述壁具有延伸穿过所述壁厚的狭槽; 以及设置在所述壁的外表面上的至少一个齿构件，用于与井眼刮削接合。 因此，本发明提供了一种刮刀组件，其相对方便且制造成本低廉，并且可被视为井下设备的一次性物品。
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公开(公告)号：US20050230119A1
公开(公告)日：2005-10-20
申请号：US10531984
申请日：2003-10-17
申请人： Bruce McGarian , Rory Tulloch , Ian Gillies
发明人： Bruce McGarian , Rory Tulloch , Ian Gillies
CPC分类号： E21B23/006 , E21B21/103
摘要： The present invention relates to downhole apparatus and particularly, but not exclusively, to multi-cycle circulating subs used during downhole drilling operations. Apparatus is provided comprising 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： 本发明涉及井下装置，特别地但非排他地涉及在井下钻井作业期间使用的多循环循环槽。 提供了一种设备，包括活塞（242），其可滑动地安装在主体中的身体中的至少一个孔被打开和关闭的位置之间。 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：US06675897B1
公开(公告)日：2004-01-13
申请号：US09936235
申请日：2001-11-02
申请人： Bruce McGarian , Ian Gillies
发明人： Bruce McGarian , Ian Gillies
IPC分类号： E21B2110
CPC分类号： E21B21/103
摘要： The present invention relates to bypass valves for use in wellbores, particularly but not exclusively to bypass valves used during the setting of hydraulic anchor packers. A bypass valve (2) is provided with a piston (30) slidably mounted adjacent a body member (4) having at least one opening (20) extending therethrough. The piston (30) is moveable between a first position establishing a passage from the interior of the body (4) to the exterior thereof via the at least one opening (20) and a second position isolating the interior of the body (4) from the exterior thereof. A second piston may be provided for increasing, in response to a predetermined fluid pressure differential across the length of the piston (30), the force exerted on the piston (30) by a given flow of fluid through the bypass valve (2) such that the resultant force on the piston (30) is insufficient to move the piston (30) to the second position. Thus, the bypass valve (2) is adapted to provide an indication at the surface of an imminent closure. Once the indication is received, the bypass valve (2) may be closed, without the need for remedial action, by simply increasing the rate of fluid flow.
摘要翻译： 本发明涉及在井筒中使用的旁通阀，特别但非排他地在液压锚式包装机设置期间使用的旁通阀。 旁通阀（2）设置有可滑动地安装在主体构件（4）周围的活塞（30），该主体构件具有延伸穿过其中的至少一个开口（20）。 活塞（30）可以在建立从主体（4）的内部到其外部的经由至少一个开口（20）的通道的第一位置和从主体（4）的内部隔离的第二位置之间移动 其外观。 可以提供第二活塞，用于响应于活塞（30）的长度上的预定流体压力差，增加通过旁通阀（2）的给定流体流施加在活塞（30）上的力，例如 活塞（30）上的合力不足以将活塞（30）移动到第二位置。 因此，旁通阀（2）适于在即将闭合的表面提供指示。 一旦接收到指示，旁通阀（2）可以通过简单地增加流体流速来关闭，而不需要补救动作。
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公开(公告)号：US06431273B1
公开(公告)日：2002-08-13
申请号：US09600624
申请日：2000-08-07
申请人： Bruce McGarian , Ian Gillies
发明人： Bruce McGarian , Ian Gillies
IPC分类号： G21B2304
CPC分类号： E21B33/127
摘要： This invention relates to hydraulic anchor packers for use in well bores and, more particularly, to inflatable anchor packers. A hydraulic anchor packer (90) is provided having an inflatable packer element (36) incorporating a cylinder (38) and an elastomer sleeve (44) provided on the exterior surface thereof. The elastomer sleeve (44) but free of the cylinder (38) intermediate the end portions. Means are provided for causing fluid from within the cylinder (38) to flow through an aperture (48) and between the elastomer sleeve (44) and the exterior surface of the cylinder so as to radially expand the sleeve (44). Means are also provided for trapping fluid so as to prevent relaxation of the sleeve (44). Pressure relief means (92, 94, 98) permits fluid located exteriorly of the packer (90) to move past the sleeve (44) as the sleeve (44) expands whilst in engagement with a well bore wall during use. Thus, the downhole half of the sleeve (44) may freely expand and displace fluid located below the packer (90).
摘要翻译： 本发明涉及用于井眼中的液压锚式封隔器，更具体地说，涉及可充气的锚式包装机。 提供一种液压锚定封隔器（90），其具有包括气缸（38）和设置在其外表面上的弹性体套筒（44）的充气封隔器元件（36）。 弹性体套筒（44）但没有气缸（38）在端部之间。 提供了用于使来自气缸（38）内的流体流过孔（48）和弹性体套筒（44）与气缸的外表面之间的装置，以使套筒（44）径向膨胀。 还提供了用于捕获流体以防止套筒（44）松弛的装置。 压力释放装置（92,94,98）允许位于封隔器（90）外部的流体在套管（44）膨胀时移动通过套筒（44），同时在使用期间与井眼壁接合。 因此，套筒（44）的井下半部可以自由地膨胀并且移动位于封隔器（90）下方的流体。
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公开(公告)号：US12055258B2
公开(公告)日：2024-08-06
申请号：US17348601
申请日：2021-06-15
申请人： Bruce McGarian
发明人： Bruce McGarian
CPC分类号： F16L55/1108 , F16K5/02 , F16L21/04 , F16L55/07 , F16L55/1141
摘要： A sealing device for sealing a free end of a generally tubular object, the sealing device comprising: a main body comprising either a sleeve which may, when the sealing device is engaged with the free end of a generally tubular object, surround the free end of the generally tubular object, or a protrusion which may, when the sealing device is engaged with the free end of the generally tubular object, be inserted into the interior of the free end of the generally tubular object; a grip arrangement which is connected to or supported by the main body, and positioned to lie against or adjacent a surface of the generally tubular object when the sealing device is engaged with the free end of the generally tubular object, wherein the grip arrangement is radially moveable with respect to a central axis of the main body; and a grip drive arrangement operable to drive the grip arrangement radially with respect to the central axis of the main body, towards the surface of the generally tubular object.
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公开(公告)号：US11174694B2
公开(公告)日：2021-11-16
申请号：US16635214
申请日：2018-07-25
申请人： Bruce McGarian
发明人： Bruce McGarian
摘要： A tool for milling a window in a casing (3) of a borehole, the tool comprising: a main body having a longitudinal axis wherein, when the tool is run into a borehole, the longitudinal axis is substantially parallel with the longitudinal axis of the borehole, the main body comprising a deflection surface (7) which is disposed at an angle with respect to the longitudinal axis; a milling arrangement comprising a milling head (11) and a guidance surface (13), wherein the guidance surface is disposed at an angle with respect to the longitudinal axis of the tool and is in contact with the deflection surface; and a drive arrangement (14) which is operable to effect relative longitudinal movement between the main body and the milling arrangement.
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公开(公告)号：US20210079749A1
公开(公告)日：2021-03-18
申请号：US16630707
申请日：2018-07-12
申请人： Bruce McGarian
发明人： Bruce McGarian
IPC分类号： E21B29/00 , E21B33/138 , E21B33/12 , E21B34/14
摘要： A cutting tool, comprising: an elongate main body having an inlet end and an outlet end, a fluid flow path being defined between the inlet and the outlet ends; a piston mounted within the main body and longitudinally movable with respect to the main body; one or more cutters, each cutter being moveable between a retracted position and a deployed position, wherein the piston and each cutter engage one another so that longitudinal movement of the piston with respect to the main body moves each cutter between the deployed position and the retracted position; and a flow regulator, operable to divert fluid flowing into the inlet end of the tool selectively along a first path, which passes the through the piston to the outlet end of the tool, and a second path, in which the fluid tends to drive the piston longitudinally with respect to the main body.
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公开(公告)号：US20200332614A1
公开(公告)日：2020-10-22
申请号：US16959113
申请日：2018-12-11
申请人： Bruce McGarian
发明人： Bruce McGarian
IPC分类号： E21B29/06
摘要： A whipstock comprises a longitudinal axis, a first end and a second end, and a tapering deflection section extending at least part of the way between the first end and the second end. The deflection section has a rear face. The deflection section has a front face, which in use will deflect a milling arrangement in a direction having a component which is perpendicular to the longitudinal axis of the whipstock. The front face has first and second side edges and a width defined between the first and second side edges. A depth of the deflection section is defined as a distance between the rear face and the front face. At at least one point along the length of the deflection surface, the depth of the deflection section at a distance from the first side edge is greater than the depth of the deflection section at the same distance from the second side edge.
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