Downhole tool for selectively catching balls in a well bore
    71.
    发明授权
    Downhole tool for selectively catching balls in a well bore 有权
    用于选择性地在井眼中捕捉球的井下工具

    公开(公告)号:US07530400B2

    公开(公告)日:2009-05-12

    申请号:US10552888

    申请日:2004-04-20

    申请人: George Telfer

    发明人: George Telfer

    IPC分类号: E21B34/06

    CPC分类号: E21B23/08 E21B23/00 E21B34/14

    摘要: A ball catcher for selectively catching and retaining drop balls in a well bore. The catcher is located on a workstring. A main bore (18) axially through the catcher is restrained to provide first (26) and second (28) bores of differing diameters. The first bore (26) is further restricted at a lower end, thus balls within the first bore (26) are retained and balls in the second bore (28) pass through the catcher. The bores preferably overlap to provide a channel (30) so that smaller balls can pass between the bores for release. In one embodiment, the second bore (28a) is located centrally through the catcher so that wireline tools and the like can be run through the catcher.

    摘要翻译: 用于选择性地捕捉并保持井眼中的球的球捕获器。 捕手位于工作台上。 轴向穿过捕获器的主孔(18)被限制以提供不同直径的第一(26)和第二(28)孔。 第一孔(26)进一步被限制在下端,因此保持第一孔(26)内的球,并且第二孔(28)中的球通过捕获器。 孔优选地重叠以提供通道(30),使得较小的球可以在孔之间通过以释放。 在一个实施例中,第二孔(28a)位于捕集器的中心位置,使得有线工具等能够穿过捕获器。

    Downhole tool
    72.
    发明授权
    Downhole tool 有权
    井下工具

    公开(公告)号:US07416029B2

    公开(公告)日:2008-08-26

    申请号:US10551678

    申请日:2004-03-31

    IPC分类号: E21B34/00

    摘要: A downhole tool which can perform a task in a well bore, such as circulating fluid radially from the tool. The function is selectively performed by virtue of a sleeve moving within a central bore of the tool. Movement of the sleeve is effected by dropping a ball through a ball seat on the sleeve. Movement of the sleeve is controlled by an index sleeve such that the tool can be cycled back to the first operating position by dropping identical balls through the sleeve. Embodiments are described wherein the balls are deformable, the seat is deformable and the seat provides a helical channel through which the ball passes.

    摘要翻译: 井下工具,其能够在井眼中执行任务,例如从工具径向循环流体。 通过套筒在工具的中心孔内移动来选择性地执行该功能。 袖子的移动通过将球落入套筒上的球座来实现。 套筒的运动通过折索套管来控制,使得工具可以通过将相同的球通过套筒落下而循环回到第一操作位置。 描述了实施例,其中球是可变形的,座椅是可变形的,并且座椅提供球通过的螺旋通道。

    Stabiliser, jetting and circulating tool
    73.
    发明授权
    Stabiliser, jetting and circulating tool 有权
    稳定剂,喷射和循环工具

    公开(公告)号:US07383881B2

    公开(公告)日:2008-06-10

    申请号:US10509714

    申请日:2003-04-03

    申请人: George Telfer

    发明人: George Telfer

    IPC分类号: E21B23/12

    摘要: A downhole tool (10) for use in oil and/or gas well bores. The tool has a tubular body (20) and a sleeve (22) including stabilizer blades (30). The tool is ball (76), activated, weight activated or hydraulically activated to selectively jet fluid from the body through jetting ports (44A, 44B, 44C) on the blades. Thus the tool provides the features of a stabilizer, cleaning tool and circulation tool in-one.

    摘要翻译: 用于油和/或气井的井下工具(10)。 工具具有管状体(20)和包括稳定器叶片(30)的套筒(22)。 该工具是球(76),被激活,重量激活或液压激活,以通过叶片上的喷射口(44A,44B,44C)选择性地从身体喷射流体。 因此,该工具提供稳定器,清洁工具和循环工具一体化的特征。

    Packer
    74.
    发明授权
    Packer 有权
    封隔器

    公开(公告)号:US07314092B2

    公开(公告)日:2008-01-01

    申请号:US10514695

    申请日:2003-05-20

    申请人: George Telfer

    发明人: George Telfer

    IPC分类号: E21B33/12

    CPC分类号: E21B33/128

    摘要: A packer tool for mounting on a work string in an oil and/or gas well is described. The packer is of the compression set type but includes a mechanism to prevent premature setting in the well. A method of running the tool with the completion is provided in order to advantageously allow an integrity test to be performed on the same run.

    摘要翻译: 描述了用于安装在油和/或气井中的工作串上的封隔器工具。 封隔器是压缩设定型,但是包括防止井中过早设定的机构。 提供了一种运行完成的工具的方法,以便有利地允许在相同的运行中执行完整性测试。

    Disengagable burr mill
    75.
    发明授权
    Disengagable burr mill 有权
    不可磨损的毛刺磨

    公开(公告)号:US07191835B2

    公开(公告)日:2007-03-20

    申请号:US10493009

    申请日:2002-10-17

    IPC分类号: E21B21/00

    CPC分类号: E21B29/00 E21B10/325

    摘要: A downhole tool for use in the removal of burrs or other unwanted material from an inner surface of a pipeline, well casing or other tubular. The tool has a plurality of milling elements, which may be biased against the surface or retracted from the surface to disengage the tool from the tubular. A drop ball mechanism with a fluid by-pass is described for disengaging the milling elements.

    摘要翻译: 一种井下工具,用于从管道,井套管或其他管道的内表面去除毛刺或其它不需要的物质。 该工具具有多个铣削元件,该铣削元件可以偏置在表面上或从表面缩回以使刀具与管状件脱离接触。 描述了具有流体旁路的落球机构用于分离铣削元件。

    Dual function cleaning tool
    76.
    发明申请
    Dual function cleaning tool 有权
    双功能清洁工具

    公开(公告)号:US20070039737A1

    公开(公告)日:2007-02-22

    申请号:US10550531

    申请日:2004-03-19

    申请人: George Telfer

    发明人: George Telfer

    IPC分类号: E21B37/02

    CPC分类号: E21B43/10 E21B37/02

    摘要: A cleaning tool and method of cleaning a liner top in a well bore. The tool includes cleaning elements, typically scrapers, which are arranged eccentrically to an axial bore through the tool. The elements are biased outwardly to contact an inner surface of a polished bore receptacle (PBR) at a position with a curvature to match the PBR and to present leading edges of each element when positioned at a surface of a neighbouring casing. The tool may further provide a top dress mill and act as a packer actuator sub. This provides a tool which performs a number of functions on a single trip in a well bore.

    摘要翻译: 一种在井眼中清洁衬垫顶部的清洁工具和方法。 该工具包括清洁元件,通常是刮刀,其偏心地布置在穿过工具的轴向孔中。 这些元件向外偏置以在具有曲率的位置处与抛光孔插座(PBR)的内表面接触以匹配PBR,并且当定位在相邻外壳的表面时呈现每个元件的前缘。 该工具可以进一步提供顶部连衣裙磨机并用作封隔器执行机构。 这提供了在井眼中单次行程执行多个功能的工具。

    Downhole weight bearing apparatus and method
    77.
    发明授权
    Downhole weight bearing apparatus and method 有权
    井下重量承载装置及方法

    公开(公告)号:US07152686B2

    公开(公告)日:2006-12-26

    申请号:US10474864

    申请日:2002-04-04

    IPC分类号: E21B23/04

    摘要: A downhole tool for connection in a work string to prevent premature activation of weight set tools on the work string. The tool has moveable pads which contact the tubing wall and thereby support the weight of the work string. The pads are activated by increasing fluid pressure in the annulus between the tool and tubing wall and deactivated by increasing fluid pressure through the central bore of the tool.

    摘要翻译: 用于在工作串中连接的井下工具,以防止工作串上的重量设定工具的过早启动。 该工具具有接触管壁的可移动垫,从而支撑工作绳的重量。 通过增加工具和管壁之间的环空中的流体压力来激活垫,并且通过增加通过工具的中心孔的流体压力而被去活化。

    Selectively operational cleaning tool
    78.
    发明授权
    Selectively operational cleaning tool 有权
    选择性操作的清洁工具

    公开(公告)号:US07121343B2

    公开(公告)日:2006-10-17

    申请号:US10513281

    申请日:2003-05-01

    申请人: George Telfer

    发明人: George Telfer

    IPC分类号: E21B37/02

    CPC分类号: E21B17/1014 E21B37/02

    摘要: A downhole cleaning tool (10) for oil and gas wells. Brushes, scraper, wipers (32) and the like are mounted on a sleeve (14) over a tubular body (12), and the members successively moved towards and away from an inner surface of a tubular to be cleaned. Movement is created by a jarring action on the tool with the sleeve traveling over undulating profiles (26) on the body to actuate the cleaning members. The tool may be deployed on a slickline or wireline.

    摘要翻译: 用于油气井的井下清洁工具(10)。 刷子,刮板,刮水器(32)等安装在管状体(12)上的套筒(14)上,并且这些构件相继地朝向和远离待清洁管状体的内表面移动。 通过套筒在身体上的波状轮廓(26)上行进来驱动清洁构件,通过在工具上的刺激动作来产生运动。 该工具可以部署在钢丝网或电缆上。

    Protective arrangements for downhole tools
    79.
    发明授权
    Protective arrangements for downhole tools 失效
    井下工具的防护装置

    公开(公告)号:US5628366A

    公开(公告)日:1997-05-13

    申请号:US387796

    申请日:1995-02-17

    申请人: George Telfer

    发明人: George Telfer

    摘要: A protective arrangement or "junk bonnet" (30) for preventing debris entering a downhole tool assembly (14) employed in the drilling of a well. The junk bonnet (30) is in the form of an annular seal which fits around a tube (18) and inside a sleeve (24) which are relatively movable to operate a downhole tool assembly (14) of which they form part. The junk bonnet (30) is provided with sliding fluid seals (42, 44, 48, 50) which seal against the external surface (19) of the tube (18), and against the bore (25) of the sleeve (24). A longitudinal fluid passage (52) links opposite ends (54, 56) of the junk bonnet (30). The passage (52) is sealed in use by a plug (60) or other suitable valve. An annular volume ("C") below the junk bonnet (30), between the tube (18) and the sleeve (24), and above a seal (26) forming part of the downhole tool assembly (14) is filled through the passage (52) with hydraulic oil during setting-up and prior to closure of the passage (52) by the plug (60). This hydraulically locks the junk bonnet (30) in place on the downhole tool assembly (14), without reliance on any mechanical fastening, and yet free of susceptibility to being dislodged by normal operational movements of the downhole tool assembly (14). The upper end (56) of the junk bonnet (30) can be formed as a back-reamer, and an emergency release (72) can be incorporated.

    摘要翻译: PCT No.PCT / GB93 / 01755 Sec。 371日期:1995年2月17日 102(e)1995年2月17日PCT PCT 1993年8月18日PCT公布。 第WO94 / 04790号公报 日期1994年3月3日保护装置或“垃圾发动机罩”(30),用于防止碎屑进入钻井中使用的井下工具组件(14)。 垃圾发动机罩(30)为环形密封件的形式,该环形密封件围绕管(18)安装在套筒(24)的内部,套管(24)可相对移动以操作它们形成部件的井下工具组件(14)。 垃圾发动机盖(30)设有与管子(18)的外表面(19)密封并抵靠套管(24)的孔(25)的滑动流体密封件(42,44,48,50) 。 纵向流体通道(52)连接垃圾发动机罩(30)的相对端(54,56)。 通道(52)在使用中被塞子(60)或其它合适的阀门密封。 在管子(18)和套管(24)之间以及形成井下工具组件(14)的一部分的密封件(26)的下面,在垃圾发动机罩(30)下方的环形容积(“C”)被填充通过 通道(52)在安装期间和在通过插塞(60)关闭通道(52)之前具有液压油。 该液压组件将废气发动机盖30锁定在井下工具组件14上的适当位置,而不依赖于任何机械紧固,并且由于井下工具组件14的正常操作运动而没有被移动的易感性。 垃圾发动机罩(30)的上端(56)可以形成为后铰刀,并且可以结合紧急释放装置(72)。

    Multi-string packers
    80.
    发明授权
    Multi-string packers 失效
    多串包装机

    公开(公告)号:US5129454A

    公开(公告)日:1992-07-14

    申请号:US612531

    申请日:1990-11-13

    申请人: George Telfer

    发明人: George Telfer

    IPC分类号: E21B33/122

    CPC分类号: E21B33/122

    摘要: A multi-string packer for anchoring two or more non-concentric through tubes inside a larger pipe or casing (e.g. in an oil well). The packer can be deployed downhole, set, unset, and reset at least once without being withdrawn to the surface, despite the shearing of shear elements on each such operation. A lost-motion mechanism isolates the shear elements for the first packer resetting (the second setting) from packer-setting shear forces applied to the shear elements for the first packer setting, to preserve the second setting shear elements until the packer is actually required to be set for a second time. Similarly, another lost-motion mechanism isolates to shear elements for the second packer unsetting from the packer-unsetting shear forces applied to the shear elements for the first packet unsetting, to preserve the second unsetting shear elements until the packer is actually required to be unset for a second time.As applied to a pump packer for use with a downhole electric pump, the invention enables the pump cable and completion string to be anchored and sealed inside the well casing. In the event of a wellhead fault necessitating unsetting of the packer, the string need only be withdrawn a short distance to access the wellhead fault for its repair, and then returned downhole that short distance only, since the packer can be reset at least once without being withdrawn to the surface. This avoids the need to withdraw the entire string to refurbish the packer for a second setting.

    摘要翻译: 用于将两个或更多个不同心的通过管锚定在更大的管或套管内(例如在油井中)的多管柱封隔器。 尽管在每次这样的操作中都剪切剪切元件,但封隔器可以部署在井下,设置,未设置和至少一次而不被撤回到表面。 丢失运动机构将用于第一封隔器复位(第二设定)的剪切元件与施加到第一封隔器设置的剪切元件的封隔器设定剪切力隔离,以保留第二设定剪切元件,直到封隔器实际需要 被设置第二次。 类似地,另一个缺失运动机构将第二封隔器的剪切元件与打包器的松开剪切力分离,使施加到剪切元件的第一分组未固定的剪切力保持不变,以便保持第二未剪切剪切元件,直到封隔器实际上需要未设定 第二次 本发明适用于与井下电动泵一起使用的泵式封隔器,使得泵电缆和完井管柱能够锚固并密封在井套内。 在井口故障需要打开封隔器的情况下,串只需要撤离短距离才能进入井口故障进行维修,然后仅在短距离内返回到井下,因为封隔器可以至少复位一次而不需要 被撤回到地面。 这避免了撤回整个字符串以重新打包封隔器进行第二次设置的需要。