公开(公告)号：US6158513A

公开(公告)日：2000-12-12

申请号：US129792

申请日：1998-08-06

申请人： Radu Nicolae Nistor ,  Laurier E. Comeau ,  Ian Gillis ,  Timothy Edward LaGrange ,  Benji Smith ,  James Fehr

发明人： Radu Nicolae Nistor ,  Laurier E. Comeau ,  Ian Gillis ,  Timothy Edward LaGrange ,  Benji Smith ,  James Fehr

IPC分类号： E21B7/08 ,  E21B23/02 ,  E21B23/12 ,  E21B41/00

CPC分类号： E21B41/0035 ,  E21B23/002 ,  E21B23/02

摘要： An apparatus and method for directing a first and a second object into a primary and a secondary borehole respectively from a main borehole communicating therewith at a borehole junction. The apparatus includes a deflector for positioning at the borehole junction to direct the first and second objects into the primary and secondary boreholes. A retainer holds the objects relative to each other such that when the first object is aligned to be directed into the primary borehole, the second object is aligned to be directed into the secondary borehole. A retainer orienting mechanism orients the retainer relative to the borehole junction so that the objects are aligned to be directed into the boreholes. The method includes positioning the deflector at the borehole junction and inserting the objects and the retainer into the main borehole. The retainer is oriented relative to the borehole junction so that the objects are aligned to be directed into their respective boreholes. The objects are then directed into the boreholes by bringing them into contact with the deflector.

摘要翻译： 一种用于将第一和第二物体分别从在井眼连接处与其连通的主钻孔引导到主钻孔和次钻孔中的装置和方法。 该装置包括用于定位在钻孔连接处以将第一和第二物体引导到主钻孔和次钻孔中的偏转器。 保持器相对于彼此保持物体，使得当第一物体对准以被引导到主钻孔中时，第二物体对准以被引导到次钻孔中。 保持器定向机构使保持器相对于钻孔接合点定向，使得物体对准以被引导到钻孔中。 该方法包括将偏转器定位在钻孔接合处并将物体和保持器插入主钻孔中。 保持器相对于钻孔接头定向，使得物体对准以被引导到它们各自的钻孔中。 然后通过使它们与偏转器接触将物体引导到钻孔中。

公开(公告)号：US6041855A

公开(公告)日：2000-03-28

申请号：US65522

申请日：1998-04-24

申请人： Radu Nicolae Nistor

发明人： Radu Nicolae Nistor

IPC分类号： E21B7/08 ,  E21B17/00 ,  E21B29/06 ,  E21B19/16

CPC分类号： E21B29/06 ,  E21B17/00

摘要： An apparatus for providing a high torque pressure sleeve for easily drillable casing exit ports. A joint of tubular casing with a pre-formed window in the wall thereof has a tubular sleeve fixedly attached to the exterior of the tubular casing covering the window. The interior surface of the sleeve is sealed to the exterior of the tubular casing on opposite sides of the window. In use, the joint of the tubular casing is run down to the depth of interest in the earth wellbore and the window is oriented with respect to the formation of interest at the depth. The joint of tubular casing is then cemented in place, after which a whipstock is lowered into the wellbore, oriented and anchored therein. The assembly automatimuly fixes the axial and circumferential oriention of the whipstock within a surrounding casing joint and holds the assembly in place. A drilling assembly is lowered into the casing and a lateral bore is drilled off the whipstock through the window and the pressure sleeve and into the surrounding formation.

摘要翻译： 一种用于提供用于容易钻孔的壳体出口的高扭矩压力套筒的装置。 在其壁中具有预成形窗口的管状套管的接头具有固定地附接到覆盖窗口的管状外壳的外部的管状套筒。 套筒的内表面在窗口的相对侧被密封到管状外壳的外部。 在使用中，管状套管的接头沿着地球井眼的深度运行，并且窗口相对于在深度处形成感兴趣而定向。 然后将管状套管的接头胶合就位，然后将造斜器下降到井眼中，定向和锚定在其中。 组件可自动固定造斜器在周围套管接头内的轴向和圆周方向，并将组件保持在适当的位置。 钻井组件下降到壳体中，并且横向孔从造斜器通过窗口和压力套筒钻入周围的地层中。

公开(公告)号：US06935428B2

公开(公告)日：2005-08-30

申请号：US10216906

申请日：2002-08-12

申请人： Jody R. McGlothen ,  Steven R. Fipke ,  Radu Nicolae Nistor

发明人： Jody R. McGlothen ,  Steven R. Fipke ,  Radu Nicolae Nistor

IPC分类号： E21B23/01 ,  E21B41/00 ,  E21B43/00

CPC分类号： E21B47/024 ,  E21B23/02

摘要： Apparatus and methods for anchoring and orienting equipment in a well provide a latch assembly having a substantially unobstructed bore, thereby increasing access and flow therethrough while the latch assembly is operatively engaged with an anchoring and orienting profile in the well. The latch assembly may include a generally tubular collet structure having multiple collets integrally formed thereon.

摘要翻译： 用于在井中锚定和定向设备的设备和方法提供了具有基本上无阻碍的孔的闩锁组件，从而在闩锁组件与井中的锚定和定向轮廓可操作地接合的同时增加了通过其的通路和流动。 闩锁组件可以包括具有一体地形成在其上的多个筒夹的大体上管状的夹头结构。

公开(公告)号：US06206111B1

公开(公告)日：2001-03-27

申请号：US09339864

申请日：1999-06-25

申请人： Radu Nicolae Nistor

发明人： Radu Nicolae Nistor

IPC分类号： E21B708

CPC分类号： E21B41/0035 ,  E21B17/00 ,  E21B29/06

摘要： A joint of tubular casing with a pre-formed window in its sidewall, has a tubular sleeve fixedly attached to the interior of the tubular casing by a plurality of shearable fastners. The exterior surface of the sleeve is sealed to the interior surface of the tubular casing on opposing sides of the window using a pair of high pressure seal assemblies. The window cavity is filled with a fluid and then the window is covered with one or more layers of a composite material such as fiberglass. In use, the joint of tubular casing is run down to the depth of interest in an earth borehole, and then the window is oriented with respect to the formation of interest at the depth. The joint of tubular casing is then cemented in place, after which the tubular sleeve is retrieved by the use of a fishing tool causing the set screws to shear upon the upward movement of the fishing tool. After the interior sleeve is retrieved, a whipstock is lowered into the cased borehole, until it is oriented and anchored therein.

摘要翻译： 在其侧壁中具有预成型窗口的管状套管的接头具有通过多个可剪切的止动件固定地连接到管状壳体的内部的管状套筒。 使用一对高压密封组件将套筒的外表面密封到窗口的相对侧上的管状壳体的内表面。 窗口腔充满流体，然后用一层或多层复合材料如玻璃纤维覆盖窗户。 在使用中，管状套管的接头在地球钻孔中运行到感兴趣的深度，然后窗口相对于在深度处形成感兴趣而定向。 然后将管状套管的接头胶合就位，之后通过使用钓鱼工具回收管状套筒，导致固定螺钉在钓鱼工具向上运动时剪切。 在收回内套筒之后，将造斜器下降到套管钻孔中，直到其被定向和固定在其中。