Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling
    61.
    发明授权
    Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling 有权
    从侧井眼开发再次进入母井的钻井方法和用于铣削的底孔组件

    公开(公告)号:US07487835B2

    公开(公告)日:2009-02-10

    申请号:US10850046

    申请日:2004-05-20

    CPC classification number: E21B41/0035 E21B29/06

    Abstract: A method is provided that allows the operator to re-enter a primary wellbore from a lateral wellbore after the lateral wellbore has been completed. The method generally comprises the steps of locating a cutting device such as a milling bit adjacent a tubular such as a liner within a wellbore, rotating the milling bit while maintaining an axial position of the milling bit relative to the liner to initiate an opening, and rotating and axially advancing the milling bit to complete the opening. In addition, a bottom hole assembly that facilitates re-entry into the primary wellbore from a lateral wellbore is provided. The bottom hole assembly generally includes a drill collar or other heavy pipe structure, and a mill. The mill has a body and cutting structures. The cutting structures apply lateral force against a surrounding pipe to form an initial lip through the wall of the pipe.

    Abstract translation: 提供了一种方法,其允许操作者在侧面井眼完成之后从侧井眼再次进入主井眼。 该方法通常包括以下步骤:将诸如铣头之类的切削装置定位在井筒内的诸如衬管之类的管状物上,使研磨钻头旋转,同时保持铣头相对于衬套的轴向位置以启动开口;以及 旋转并轴向推进研磨钻头以完成开口。 另外,提供了一种便于从侧井眼再次进入主井眼的底孔组件。 底孔组件通常包括钻铤或其他重的管道结构以及碾磨机。 磨机有一个身体和切割结构。 切割结构对周围的管施加横向力,以通过管的壁形成初始的唇。

    METHOD OF FORMING A BORE
    62.
    发明申请
    METHOD OF FORMING A BORE 有权
    形成钻孔的方法

    公开(公告)号:US20080257605A1

    公开(公告)日:2008-10-23

    申请号:US12122280

    申请日:2008-05-16

    CPC classification number: E21B7/20 E21B7/061 E21B29/06 E21B33/14 E21B43/103

    Abstract: A method of forming a supported subterranean well bore in which, in one disclosed embodiment, a first drill bit is mounted on a first string of casing tubulars via a steerable tool, and the drill bit is used to form a first bore. Upon reaching the required depth the casing string is cemented in place to support the formed bore and a second drill bit is mounted on a second casing string and is inserted into the first casing string. The second drill bit is used to drill through the wall of the first casing string and proceed to form a second, deeper bore. Once the second drill bit has reached the required depth, the second casing string is cemented in place to support the second bore.

    Abstract translation: 一种形成支撑的地下井的方法,其中在一个所公开的实施例中,第一钻头经由可操纵的工具安装在第一套套管上,钻头用于形成第一孔。 达到所需的深度后,套管柱被固定在适当位置以支撑形成的孔,并且第二钻头安装在第二套管柱上并被插入到第一套管柱中。 第二钻头用于穿过第一套管柱的壁并且继续形成第二较深的孔。 一旦第二钻头已经达到所需的深度,第二套管柱就被固定就位以支撑第二孔。

    Downhole motor locking assembly and method
    63.
    发明授权
    Downhole motor locking assembly and method 有权
    井下电机锁紧装置及方法

    公开(公告)号:US07225889B2

    公开(公告)日:2007-06-05

    申请号:US11551527

    申请日:2006-10-20

    Inventor: Charles H. Dewey

    Abstract: A lockable motor assembly for use in a well bore comprises a stator, a rotor rotatably mounted within the stator, and a selectively removable flow restriction means. The lockable motor assembly may further, comprise holding means for rotationally fixing the rotor to the stator. The flow restriction means limits the flow rate of fluid downstream of the rotor, thereby substantially balancing hydraulic pressure above and below the stator.

    Abstract translation: 用于井眼的可锁定电动机组件包括定子,可旋转地安装在定子内的转子和可选择性地拆卸的流动限制装置。 可锁定电动机组件还可以包括用于将转子旋转地固定到定子的保持装置。 流量限制装置限制了转子下游流体的流速,从而基本上平衡了定子上方和下方的液压。

    Well system
    64.
    发明授权
    Well system 有权
    井系统

    公开(公告)号:US07172038B2

    公开(公告)日:2007-02-06

    申请号:US10988930

    申请日:2004-11-15

    Abstract: The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a wear layer. Multiple electrical conductors and data transmission conductors may be embedded in the load carrying layers for carrying current or transmitting data between the bottom hole assembly and the surface. The bottom hole assembly includes a bit, a gamma ray and inclinometer instrument package, a steerable assembly, an electronics section, a transmission, and a power section for rotating the bit. It may or may not include a propulsion system. The drilling system may be a gravity based drilling system that does include a propulsion system. Various motive means may be provided, such as gravity, to apply weight on the bit.

    Abstract translation: 钻井系统包括支撑井底组件的工作柱。 工作串包括具有非金属部分的管的长度。 工作线优选地包括具有不透液体的衬套,多个承载层和耐磨层的复合连续油管。 多个电导体和数据传输导体可以嵌入承载层中,用于在底孔组件和表面之间承载电流或传输数据。 底孔组件包括钻头,伽马射线和倾斜仪器包装,可转向组件,电子部件,变速器和用于旋转钻头的动力部件。 它可能包括也可能不包括推进系统。 钻井系统可以是基于重力的钻井系统,其包括推进系统。 可以提供各种动力装置,例如重力,以将重量施加在钻头上。

    Wellbore liner system
    66.
    发明授权

    公开(公告)号:US07025144B2

    公开(公告)日:2006-04-11

    申请号:US10853673

    申请日:2004-05-25

    CPC classification number: E21B7/061 E21B10/46 E21B10/50 E21B29/06 E21B41/0042

    Abstract: Wellbore apparatus has been invented which, in at least certain aspects, includes a wellbore apparatus having a tubular member with a top end, a bottom end, a hollow portion, and a window therethrough, a sleeve positioned within the hollow portion of the tubular member, the sleeve having a top end and a bottom end, a diverter apparatus within or outside the tubular member and, optionally, below the bottom end of the sleeve, the sleeve movable so that the diverter, and the diverter directs the sleeve to the window and through the window into a bore extending beyond the window, and the window having an edge therearound to which the top end of the sleeve is weldable to sealingly secure the sleeve at the window

    Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling
    67.
    发明申请
    Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling 有权
    从侧井眼开发再次进入母井的钻井方法和用于铣削的底孔组件

    公开(公告)号:US20050257930A1

    公开(公告)日:2005-11-24

    申请号:US10850046

    申请日:2004-05-20

    CPC classification number: E21B41/0035 E21B29/06

    Abstract: A method is provided that allows the operator to re-enter a primary wellbore from a lateral wellbore after the lateral wellbore has been completed. The method generally comprises the steps of locating a cutting device such as a milling bit adjacent a tubular such as a liner within a wellbore, rotating the milling bit while maintaining an axial position of the milling bit relative to the liner to initiate an opening, and rotating and axially advancing the milling bit to complete the opening. In addition, a bottom hole assembly that facilitates re-entry into the primary wellbore from a lateral wellbore is provided. The bottom hole assembly generally includes a drill collar or other heavy pipe structure, and a mill. The mill has a body and cutting structures. The cutting structures apply lateral force against a surrounding pipe to form an initial lip through the wall of the pipe.

    Abstract translation: 提供了一种方法,其允许操作者在侧面井眼完成之后从侧井眼再次进入主井眼。 该方法通常包括以下步骤:将诸如铣头之类的切削装置定位在井筒内的诸如衬管之类的管状物的位置,同时保持研磨钻头相对于衬套的轴向位置以启动开口; 旋转并轴向推进研磨钻头以完成开口。 另外,提供了一种便于从侧井眼再次进入主井眼的底孔组件。 底孔组件通常包括钻铤或其他重的管道结构以及碾磨机。 磨机有一个身体和切割结构。 切割结构对周围的管施加横向力,以通过管的壁形成初始的唇。

    Method and apparatus for completing lateral channels from an existing oil or gas well
    68.
    发明申请
    Method and apparatus for completing lateral channels from an existing oil or gas well 失效
    从现有的油井或气井完成横向通道的方法和装置

    公开(公告)号:US20050247451A1

    公开(公告)日:2005-11-10

    申请号:US11121622

    申请日:2005-05-04

    CPC classification number: E21B41/0035 E21B7/18 E21B29/06 E21B43/114

    Abstract: A method and apparatus for completing a lateral channel from an existing oil or gas well includes a well perforating tool for perforating a well casing at a preselected depth, and a lateral alignment tool for directing a flexible hose and blaster nozzle through a previously made perforation in the casing to complete the lateral channel. The disclosed apparatus eliminates the need to maintain the precise alignment of a downhole “shoe” in order to direct the flexible hose and blaster nozzle through a previously made perforation through the well casing.

    Abstract translation: 用于从现有的油井或气井完成横向通道的方法和装置包括用于在预选深度处穿孔井套的井眼穿孔工具,以及横向对准工具,用于引导柔性软管和喷射器喷嘴通过先前制成的穿孔 套管完成横向通道。 所公开的设备消除了维持井下“鞋”的精确对准的需要,以便引导柔性软管和喷射器喷嘴穿过穿过井套的先前穿孔。

    Well reference apparatus and method
    69.
    发明授权
    Well reference apparatus and method 失效
    参考设备和方法

    公开(公告)号:US06935431B2

    公开(公告)日:2005-08-30

    申请号:US10629990

    申请日:2003-07-30

    Abstract: The well reference apparatus and method of the present invention includes a reference member preferably permanently installed within the borehole at a preferred depth and orientation in one trip into the well. The reference member provides a permanent reference for the location of all operations, particularly in a multi-lateral well. The assembly of the present invention includes disposing the reference member on the end of a pipe string. An orienting tool such as an MWD collar is disposed in the pipe string above the reference member. This assembly is lowered into the borehole on the pipe string. Once the preferred depth is attained, the MWD is activated to determine the orientation of the reference member. If the reference member is not oriented in the preferred direction, the pipe string is rotated to align the reference member in the preferred direction. This process is repeated for further corrective action and to verify the proper orientation of the reference member. Upon achieving the proper orientation of the reference member, the reference member is set within the borehole and the pipe string is disconnected from the reference member and retrieved.

    Abstract translation: 本发明的参考装置和方法包括一个参考构件,优选地以一个行程进入井中的优选的深度和取向永久地安装在钻孔内。 参考构件为所有操作的位置提供永久参考,特别是在多侧井中。 本发明的组件包括将参考构件设置在管柱的端部上。 诸如MWD轴环的定向工具设置在参考构件上方的管柱中。 该组件下降到管柱上的钻孔中。 一旦获得了优选的深度,则MWD被激活以确定参考构件的取向。 如果参考构件不是在优选方向上定向,则管柱旋转以使参考构件沿优选方向对齐。 重复此过程以进一步的纠正措施并验证参考构件的正确定向。 在实现参考构件的正确取向时,将参考构件设置在钻孔内,并且将管柱与参考构件断开并取出。

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