公开(公告)号：US07069996B2

公开(公告)日：2006-07-04

申请号：US10485962

申请日：2002-08-01

申请人： Bruce McGarian

发明人： Bruce McGarian

IPC分类号： E21B19/16 ,  E21B43/00

CPC分类号： E21B41/0035

摘要： The present invention relates to the completion of lateral well bores and provides a method comprising the steps of installing a datum device in a main well bore so as to provide a datum height above the lateral: making a completion string (10) comprising a lateral lining (11), a window element (14) at an upper end of the lining (11), a swivel joint (15) located between the lining (11) and the window element (14), and a datum device engaging member (21) located above the window element (14); running the completion through the main well bore and into the lateral; rotating the window element (14) to place the window at a desired angular position; and running the completion string home to engage the datum device engaging member (21) with the datum device.

摘要翻译： 本发明涉及完井侧井，并且提供了一种方法，其包括以下步骤：将基准装置安装在主井眼中，以便提供在横向上方的基准高度：制造包括侧衬的完成柱（10） （11），位于衬套（11）的上端的窗体元件（14），位于衬套（11）和窗元件（14）之间的旋转接头（15）和基准面接合构件 ）位于窗口元件（14）上方; 通过主井井口完成并进入侧面; 旋转窗元件（14）以将窗口放置在期望的角位置; 并将完成字符串返回原点以使基准装置接合构件（21）与基准装置接合。

公开(公告)号：US20060118306A1

公开(公告)日：2006-06-08

申请号：US10550917

申请日：2004-03-29

申请人： Tony Laplante ,  Bruce McGarian

发明人： Tony Laplante ,  Bruce McGarian

IPC分类号： E21B34/10

CPC分类号： E21B34/08 ,  E21B21/10 ,  E21B34/103 ,  E21B2034/005

摘要： The invention relates to downhole wellbore apparatus and particularly, but not exclusively, to apparatus for use in wellbore cleaning operations. A downhole tool (2) comprises a body (4) having a bore extending longitudinally therethrough, wherein the tool (2) further comprises a one-way valve (24,26) for allowing a flow of fluid in a first direction through the tool bore and preventing a flow of fluid in a second direction through the tool bore, the second direction being opposite to the first direction. The tool further comprises means (38) for rendering the one-way valve (24,26) inoperable so as to be ineffective at preventing fluid flow; and means (44,40) for selectively making the one-way valve operable so as to be effective at allowing fluid flow in said first direction and preventing fluid flow in said second direction.

摘要翻译： 本发明涉及井下井筒装置，特别涉及但不限于用于井眼清洁操作的装置。 井下工具（2）包括具有纵向穿过其中延伸的孔的本体（4），其中所述工具（2）还包括单向阀（24,26），用于允许流体沿第一方向流过所述工具 并且防止流体沿第二方向流过工具孔，第二方向与第一方向相反。 该工具还包括用于使单向阀（24,26）不可操作的装置（38），从而在防止流体流动方面无效; 以及用于选择性地使所述单向阀可操作以有效地允许流体沿所述第一方向流动并防止所述第二方向上的流体流动的装置（44,40）。

公开(公告)号：US20050205251A1

公开(公告)日：2005-09-22

申请号：US11076042

申请日：2005-03-10

申请人： Rory Tulloch ,  Bruce McGarian

发明人： Rory Tulloch ,  Bruce McGarian

IPC分类号： B08B9/02 ,  E21B20060101 ,  E21B37/00 ,  E21B37/02 ,  E21B37/08

CPC分类号： E21B37/02

摘要： A casing brush assembly (1) comprises a mandrel (2), upper and lower stabilisers (5,6), a brush (9) and a magnet assembly (10). The magnet assembly comprises a plurality of helically extending brush elements each of which is spaced from the underlying mandrel so that it can flex inwardly to accommodate variations in casing diameter. The thickness of the brush elements is relatively thin in the portions which connect the central regions to the ends of the brush with the result that the deflection of the brush elements is largely accommodated by the relatively thin regions. The magnet assembly (10) includes three rings of magnets held in a non-magnetic cage and located beneath a thin cover of non-magnetic material. The assembly can be used in a non-rotating mode (in which the brush is free to rotate relative to the mandrel) or in a rotating mode in which the brush is rotationally fast with the mandrel.

摘要翻译： 套管刷组件（1）包括心轴（2），上下稳定器（5,6），刷（9）和磁体组件（10）。 磁体组件包括多个螺旋形延伸的刷子元件，每个刷子元件与下面的心轴间隔开，使得其可以向内弯曲以适应壳体直径的变化。 刷子元件的厚度在将中心区域连接到刷子的端部的部分相对较薄，结果是刷子元件的偏转被相对薄的区域很大地容纳。 磁体组件（10）包括保持在非磁性保持架中并位于非磁性材料的薄盖之下的三个磁体环。 该组件可以以非旋转模式（其中刷子相对于心轴自由旋转）或以其中刷子与心轴旋转地快速的旋转模式使用。

公开(公告)号：US06880631B1

公开(公告)日：2005-04-19

申请号：US09937399

申请日：2000-03-24

申请人： Bruce McGarian ,  Charles H. Dewey

发明人： Bruce McGarian ,  Charles H. Dewey

IPC分类号： E21B7/06 ,  E21B29/06 ,  E21B23/00 ,  E21B7/08

CPC分类号： E21B29/06 ,  E21B7/061

摘要： This invention relates to a whipstock casing milling system and, more particularly, to such a system in which a window mill is secured to a whipstock so that the system may be run into a well, set and operated to open a window in a casing during a single trip. The milling system of the present invention comprises a protrusion (B) provided on the whipface of the whipstock wherein the protrusion (B) forms an extension of a relatively steep ramp surface (45) of the whipface so as to reduce damage to said surface (45) at a juncture (A) of said surface (45) with a relatively shallow ramp surface or parallel surface (46) during use of the system. The protrusion (B) thereby avoids an undercutting of a casing and a thinning of the whipstock.

摘要翻译： 本发明涉及一种造斜器套管铣削系统，更具体地说，涉及这样一种系统，其中将窗口磨机固定在造斜器上，使得系统可以进入井中，设置和操作以在壳体内打开窗口 单程旅行 本发明的铣削系统包括设置在造斜器的鞭状物上的突起（B），其中突起（B）形成鞭状物的较陡峭的坡道表面（45）的延伸部分，以减少对所述表面的损伤（ 45）在所述表面（45）的接合处（A）处，在所述系统的使用期间具有相对浅的斜面或平行表面（46）。 突起（B）从而避免了套管的底切和造斜器的变薄。

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。

公开(公告)号：US06279962B1

公开(公告)日：2001-08-28

申请号：US09269032

申请日：1999-08-30

申请人： Bruce McGarian ,  Valentine H. McGarian

发明人： Bruce McGarian ,  Valentine H. McGarian

IPC分类号： F16L2500

CPC分类号： E21B31/00 ,  E21B17/06 ,  Y10S285/922

摘要： The present invention relates to safety joints which permit separation of a downhole assembly at the location of the joint. The invention provides a safety joint characterized by the provision of auxiliary interconnecting means on a body (2) for interconnecting said body (2) to an auxiliary shaft after removal of a main shaft (3) from said body (2). Axial loading between the auxiliary shaft and said body (2) may be thereby transferred. Furthermore, torque may also be transferred between the auxiliary shaft and said body (2) in a direction opposite to that in which torque may be transferred from the main shaft (3) to said body (2). Thus, the present invention allows a length of downhole assembly located above said body (2) to be removed from a wellbore by rotation of said length of assembly in a first direction and then allows rotation of said body (2) in the same first direction by means of the auxiliary shaft in an attempt to remove a length of assembly stuck in the wellbore downhole of said body (2).

摘要翻译： 本发明涉及允许在接头位置处分离井下组件的安全接头。 本发明提供了一种安全接头，其特征在于，在主体（2）上设置辅助互连装置，用于在从主体（2）移除主轴（3）之后将所述主体（2）与辅助轴相互连接。 辅助轴与所述主体（2）之间的轴向载荷可由此传递。 此外，扭矩也可以在与从主轴（3）传递到所述主体（2）的扭矩相反的方向上在辅助轴和所述主体（2）之间传递。 因此，本发明允许位于所述主体（2）上方的一定数量的井下组件通过沿着第一方向旋转所述长度的组件而从井眼移除，然后允许所述主体（2）沿相同的第一方向旋转 借助于辅助轴来试图去除粘附在所述主体（2）的井下井筒内的组件的长度。

公开(公告)号：US5853054A

公开(公告)日：1998-12-29

申请号：US836534

申请日：1997-07-22

申请人： Bruce McGarian ,  Richard Alvin Armell

发明人： Bruce McGarian ,  Richard Alvin Armell

IPC分类号： E21B10/32 ,  E21B10/56 ,  E21B10/567 ,  E21B17/10 ,  E21B47/09 ,  E21B7/28

CPC分类号： E21B10/567 ,  E21B10/322 ,  E21B10/5673 ,  E21B17/10 ,  E21B47/091

摘要： A 2-stage underreamer for use in a subterranean wellbore includes a unitary body having upper and lower blades mounted in slots formed perpendicular to each other in the body. Separate upper and lower piston assemblies are provided for driving the blades respectively from a storage configuration in which they are located substantially completely within the slots to a use position. The blades each include a steel arm having mounted thereon a base of tungsten nickel cobalt matrix in which diamond and/or tungsten carbide inserts are provided. A signal is given to the surface that the blades are in their extended position by changing the mud.

摘要翻译： PCT No.PCT / GB95 / 02540 Sec。 371日期1997年7月22日 102（e）日期1997年7月22日PCT提交1995年10月31日PCT公布。 公开号WO96 / 13648 日期1996年5月9日在地下井眼中使用的两级扩孔器包括一体的单体，其具有安装在身体中彼此垂直形成的槽中的上下叶片。 提供了分离的上部和下部活塞组件，用于分别从它们基本上完全位于槽内的存储构造到用于使用位置的驱动叶片。 刀片各自包括钢臂，其上安装有钨镍钴基体的基底，其中提供金刚石和/或碳化钨刀片。 通过改变泥浆，给刀片处于伸展位置的信号。

公开(公告)号：US5261498A

公开(公告)日：1993-11-16

申请号：US784392

申请日：1991-12-30

申请人： Manfred Steinkamp ,  Werner Lau ,  Bruce McGarian

发明人： Manfred Steinkamp ,  Werner Lau ,  Bruce McGarian

IPC分类号： E21B7/04 ,  E21B17/10

CPC分类号： E21B17/1064

摘要： A drill string component for preventing chafing of a drill casing as a result of contact between the drill casing and a rotating drill string comprises a central mandrel (2) having rotatably mounted thereon a sleeve (11). The sleeve (11) is retained between shoulders defined on the mandrel to prevent accidental loss of the sleeve in the event of excessive wear in the supporting bearings. Axial thrust loads are transferred from the outer sleeve (11) to the mandrel by way of thrust bearings supported on the mandrel shoulders. Seals (24A, 24B) located between the outer sleeve seal bodies (23) and an inner sleeve (9) prevent the ingress of contaminants to the zone of bushings (12, 13) which rotatably support the outer sleeve.

摘要翻译： PCT No.PCT / GB90 / 01006 Sec。 371日期1991年12月30日 102（e）日期1991年12月30日PCT Filed 1990年6月29日PCT Pub。 出版物WO91 / 00411 日本1991年1月10日。一种用于防止由钻孔套筒和旋转钻柱之间的接触而导致钻壳磨损的钻柱组件包括其上可旋转地安装有套筒（11）的中心心轴（2）。 套筒（11）保持在心轴上限定的肩部之间，以防止在支撑轴承过度磨损的情况下意外损失套筒。 轴向推力载荷通过支撑在心轴肩上的推力轴承从外套筒（11）传递到心轴。 位于外套筒密封体（23）和内套筒（9）之间的密封件（24A，24B）防止污染物进入可旋转地支撑外套筒的衬套区域（12,13）。

公开(公告)号：US20240011372A1

公开(公告)日：2024-01-11

申请号：US18038175

申请日：2021-11-12

申请人： Bruce McGarian

发明人： Bruce McGarian

IPC分类号： E21B43/112 ,  E21B29/00 ,  E21B23/04

CPC分类号： E21B43/112 ,  E21B29/005 ,  E21B23/0412

摘要： A downhole tool, comprising: an inner body, having first and second connections in a drill string to convey fluid from immediately upper to immediately lower components. The inner body defines a flow bore which communicates between the first and second connections. An outer body disposed around at least part of the inner body is axially movable with respect to the inner body, in a direction which is parallel or substantially parallel with a longitudinal axis of the tool, such that introduction of pressurised fluid into pressure chambers tends to drive the outer body axially with respect to the inner body. The tool further comprises a component which is activated or operated by axial movement of the outer body with respect to the inner body.

公开(公告)号：US11225849B2

公开(公告)日：2022-01-18

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 ,  E21B34/14 ,  E21B33/13 ,  E21B33/12 ,  E21B33/138

摘要： A cutting tool includes an elongate main body having inlet and outlet ends with a fluid flow path defined therebetween. A piston is mounted within the main body and longitudinally movable with respect to the main body. One or more cutters are moveable between retracted and deployed positions. 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. A flow regulator is 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.