公开(公告)号：US07281584B2

公开(公告)日：2007-10-16

申请号：US10482773

申请日：2002-06-27

申请人： Bruce McGarian ,  Ian Alexander Gillies

发明人： Bruce McGarian ,  Ian Alexander Gillies

IPC分类号： E21B34/10 ,  E21B23/00

CPC分类号： E21B23/006 ,  E21B21/103

摘要： A downhole apparatus such as multi-cycle circulating subs used during downhole drilling operations includes a piston (42) slidably mounted in a body (4) between positions in which at least one aperture (40) in the body is opened and closed. Movement of the piston (42) is controlled by a pin (86) secured to one of the body and a control member, and a control groove (52) in which a portion of the pin is received formed in the other of the body and control member. An arrangement of elements (32,76) respectively connected to the control member and body is such that, as the control member moves axially, increasing lengths of the elements locate adjacent one another so as to provide resistance to relative rotation in at least one direction of the control member and body. The relative rotation is rotation which presses the control member against the control groove. The risk of damage to the control pin is thereby reduced.

摘要翻译： 在井下钻井操作期间使用的诸如多循环循环辅助井的井下设备包括可滑动地安装在主体（4）中的活塞（42），其中主体中的至少一个孔（40）打开和关闭。 活塞（42）的移动由固定到主体和控制构件之一的销（86）控制，以及控制槽（52），其中销的一部分被容纳在主体的另一个中， 控制成员。 分别连接到控制构件和主体的元件（32,76）的布置使得当控制构件轴向移动时，元件的增加的长度彼此相邻定位，以便在至少一个方向上提供对相对旋转的阻力 的控制构件和主体。 相对旋转是将控制构件压靠在控制槽上的旋转。 从而降低了控制销的损坏风险。

公开(公告)号：US07198101B2

公开(公告)日：2007-04-03

申请号：US10484636

申请日：2002-07-30

申请人： Bruce McGarian ,  Ian Alexander Gillies

发明人： Bruce McGarian ,  Ian Alexander Gillies

IPC分类号： E21B17/06

CPC分类号： E21B17/06 ,  E21B17/04

摘要： A downhole apparatus permitting separation of one part of downhole equipment from another part thereof includes a first part connected to a second part by a connecting member which limits axial and rotational movement of the first and second parts and has first and second ends connected respectively to the first and second parts. The connecting member includes a cross bar extending between the first and second ends having an aperture therein that results in a region of weakness, a portion of the cross bar spaced from the aperture minimizing stress at the region of weakness when torque is transmitted in use between the first and second parts via the connecting member.

摘要翻译： 允许一部分井下设备与其他部分分离的井下设备包括通过连接构件连接到第二部分的第一部件，其限制第一和第二部件的轴向和旋转运动，并且具有第一和第二端分别连接到 第一和第二部分。 连接构件包括在第一和第二端之间延伸的十字杆，其中具有孔，其中形成有弱化区域，横杆的一部分与孔隙间隔开，使得在使用中传递扭矩时，在弱化区域处的应力最小化 第一和第二部分经由连接构件。

公开(公告)号：US07096962B2

公开(公告)日：2006-08-29

申请号：US10491826

申请日：2002-10-01

申请人： Bruce McGarian ,  Ian Alexander Gillies ,  Brian Cruickshank

发明人： Bruce McGarian ,  Ian Alexander Gillies ,  Brian Cruickshank

IPC分类号： E21B29/06

CPC分类号： E21B7/061 ,  E21B31/00

摘要： The present invention relates to methods and equipment for recovering use of a well-bore in circumstances where the well bore has become blocked by downhole equipment. The invention provides a method comprising the steps of separating, at a release joint, a portion of equipment from a jammed portion (6) of equipment; running the separated portion of equipment uphole out of the wellbore (100); running a deflector assembly (60) downhole into the wellbore (100); and deflecting a milling tool (64) from the wellbore into surrounding formation. The method is characterised by restricting relative movement between the deflector assembly (60) and the wellbore (100) by engaging, prior to deflecting the milling tool (64), the deflector assembly (60) with said jammed portion (6) of equipment.

摘要翻译： 本发明涉及在井眼已被井下设备堵塞的情况下回收井眼使用的方法和设备。 本发明提供了一种方法，包括以下步骤：在释放接合处从设备的卡住部分（6）分离设备的一部分; 将设备的分离部分从井眼（100）运出; 将井下的偏转器组件（60）运行到所述井筒（100）中; 并将铣削工具（64）从井眼偏转到周围的地层中。 该方法的特征在于通过在将铣削工具（64）偏转设备的偏转器组件（60）之前通过接合来限制偏转器组件（60）和井筒（100）之间的相对运动。