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    • 4. 发明授权
    • Expansion assembly for a tubular expander tool, and method of tubular expansion
    • 用于管式膨胀机工具的膨胀组件和管状膨胀方法
    • US06843319B2
    • 2005-01-18
    • US10318292
    • 2002-12-12
    • Khai TranPatrick G. MaguireJ. Eric LauritzenClayton PlucheckCaswell D. Vickers, III
    • Khai TranPatrick G. MaguireJ. Eric LauritzenClayton PlucheckCaswell D. Vickers, III
    • E21B43/10E21B23/00
    • E21B43/105
    • An improved expansion assembly for an expander tool is provided. The expander tool is used to expand a surrounding tubular body within a wellbore. Accordingly, a method for expanding a surrounding tubular is also provided. The expansion assembly first comprises a piston disposed within a recess of the expander tool. The top surface of the piston closely receives a pad. The pad is held in close proximity to the top surface of the piston such that it does not rotate about a shaft. This arrangement reduces the geometric size of the expansion assembly, affording a larger inner diameter for the hollow bore of the expander tool itself. At least one reinforcement member is disposed on or within the pad to strengthen the pad during an expansion operation. The reinforcement member is fabricated from a durable material, and is arranged along the pad in the area of contact with the surrounding tubular during an expansion operation.
    • 提供了一种用于膨胀机工具的改进的膨胀组件。 扩展器工具用于在井筒内扩展周围的管状体。 因此,还提供了一种用于扩展周围管状物的方法。 膨胀组件首先包括设置在膨胀器工具的凹部内的活塞。 活塞的顶面紧密地接收一个垫。 垫被保持在紧邻活塞顶表面的位置,使得其不围绕轴转动。 这种布置减小了膨胀组件的几何尺寸,为膨胀机工具本身的中空孔提供了更大的内径。 至少一个加强构件设置在衬垫上或垫内,以在膨胀操作期间加强衬垫。 加强构件由耐用材料制成,并且在膨胀操作期间沿与垫圈接触的区域沿着垫布置。
    • 5. 发明授权
    • Expander tool for downhole use
    • 用于井下使用的扩展工具
    • US07182141B2
    • 2007-02-27
    • US10267025
    • 2002-10-08
    • Khai TranClayton Plucheck
    • Khai TranClayton Plucheck
    • E21B23/02
    • E21B43/105E21B47/01E21B47/12
    • An expander tool for expanding a first tubular into a second surrounding tubular within a wellbore. The expander tool first comprises a body. Within the body is an expansion member capable of being actuated outwardly from the body when expansion of the first tubular is desired. In one aspect, the expander tool is a rotary expander tool, and the expansion members define a plurality of rollers. The expander tool further comprises at least one sensor for sensing a downhole condition during expansion of the tubular. The sensors in one aspect include at least one tool for sensing wall dimensions of the first tubular such as inner diameter or wall thickness. Examples include sonic logs, caliper logs, and electromagnetic wall thickness tools. A depth gauge may also be included. In one aspect, a data transmission device is provided between a surface server and the sensors downhole. In this way, the operator at the surface can monitor progress of the expansion operation downhole.
    • 一种膨胀器工具,用于将第一管状物扩展到井筒内的第二周围管状物。 膨胀器工具首先包括主体。 在体内是膨胀构件,其能够在需要第一管的膨胀时从身体向外致动。 在一个方面,膨胀机工具是旋转式膨胀机工具,膨胀构件限定多个辊。 膨胀器工具还包括至少一个用于在管状物膨胀期间感测井下状况的传感器。 传感器在一个方面包括至少一个用于感测第一管的壁尺寸的工具,例如内径或壁厚。 示例包括声波测井,卡尺测井仪和电磁壁厚仪。 还可以包括深度计。 一方面,数据传输装置设置在表面服务器和井下的传感器之间。 以这种方式,地面操作者可以监测井下扩展作业的进展情况。
    • 6. 发明授权
    • Method and apparatus for expanding and separating tubulars in a wellbore
    • 用于在井眼中扩张和分离管子的方法和装置
    • US06629567B2
    • 2003-10-07
    • US10010430
    • 2001-12-07
    • J. Eric LauritzenClayton Plucheck
    • J. Eric LauritzenClayton Plucheck
    • E21B2301
    • E21B43/106E21B29/005E21B43/103E21B43/105
    • An apparatus and method for expanding a lower string of casing into frictional contact with an upper string of casing, and thereby hanging the lower string of casing onto the upper string of casing is provided. The apparatus essentially defines a lower string of casing having a separation region formed in the top end thereof. The lower string of casing is run into the wellbore, and positioned so that the top end overlaps with the bottom end of an upper string of casing already cemented into the wellbore. The top end of the lower casing string is expanded below the depth of the separation region into frictional contact with the upper string of casing. At the same time, or shortly thereafter, the top end of the upper string of casing is expanded. As the portion of the lower casing string having the separation region is expanded, the casing severs into upper and lower portions. The upper portion can then be removed from the wellbore, leaving a lower string of casing expanded into physical contact with an upper string of casing. The separation region may be formed by heat treating the tubular at the point of desired severance. In another aspect, the separation region may comprise the connection between two tubulars. This involves connecting two tubulars to form the tubular to be expanded downhole. The tubular formed is then lowered into the wellbore and expanded at the connection to separate the tubular.
    • 提供了一种用于使下部套管膨胀成与上部套管摩擦接触并由此将下部套管悬挂在上部套管上的装置和方法。 该装置基本上限定了一个具有在其顶端形成的分离区的壳体的下部串。 套管的下部套管进入井眼,并且定位成使得顶端与已经胶合到井眼中的上部套管的底端重叠。 下部套管柱的顶端在分离区域的深度之下扩展到与上部套管摩擦接触。 同时,或之后不久,上部套管的顶端扩大。 随着具有分离区域的下壳体串的部分膨胀,壳体切换成上部和下部。 然后可以从井筒中取出上部部分,留下下部套管膨胀成与上部套管物理接触。 分离区域可以通过在期望的切断点处热处理管形成。 在另一方面,分离区可以包括两个管之间的连接。 这涉及连接两个管子以形成在井下扩展的管状物。 然后将形成的管状物下降到井孔中并在连接处膨胀以分离管。