Downhole tools having circumferentially spaced rolling elements
    32.
    发明授权
    Downhole tools having circumferentially spaced rolling elements 失效
    井下工具具有周向隔开的滚动元件

    公开(公告)号:US5649603A

    公开(公告)日:1997-07-22

    申请号:US343478

    申请日:1994-11-28

    摘要: A downhole tool for providing rotary support of a downhole assembly in which the tool is incorporated, the tool also converting rotary contact with the wellbore to a longitudinal force tending to propel the assembly along the wellbore. The tool resembles a roller stabilizer in which the roller axes are skewed to be tangential to a notional helix, such that the natural (non-slipping) paths of roller contact with the wellbore have a longitudinal component in addition to the usual circumferential path. The tool can be used on drill strings and in downhole motor assemblies. The invention has particular advantage in highly deviated wells since it simultaneously compensates for increased bore friction and dynamically enhances weight-on-bit.

    摘要翻译: PCT No.PCT / GB93 / 01114 Sec。 371日期:1994年11月28日 102(e)1994年11月28日日期PCT提交1993年5月27日PCT公布。 第WO93 / 24728号公报 日期1993年12月9日,一种井下工具,用于提供井下组件的旋转支撑,其中工具被结合,该工具还将与井眼的旋转接触转换成纵向力,以沿着井眼推进组件。 该工具类似于滚子稳定器,其中滚子轴线倾斜以与理论螺旋相切,使得除了通常的圆周路径之外,滚子与井筒接触的自然(非滑动)路径具有纵向分量。 该工具可用于钻柱和井下电机组件中。 本发明在高度偏斜的井中具有特别的优点,因为它同时补偿了增加的钻孔摩擦并且动态地增加了钻头的重量。

    Downhole traction apparatus and assembly

    公开(公告)号:US09834991B2

    公开(公告)日:2017-12-05

    申请号:US14112831

    申请日:2012-04-19

    IPC分类号: E21B7/04 E21B17/10 E21B23/00

    摘要: An apparatus (10) includes a traction member in the form of a roller (24) configured for mounting on a body (12) so as to permit rotation of the roller (24) relative to the body (12). The roller (24) is mountable on the body (12) so as to define a skew angle relative to a longitudinal axis (26) of the body (12). In use, the roller (24) engages a wall of a borehole or bore-lining tubular and the roller (24) urges the apparatus (10) along the wall of the borehole or bore-lining tubular on rotation of the as the roller (24) rotates on the body (12).

    TUBING EXPANSION
    35.
    发明申请
    TUBING EXPANSION 有权
    管道膨胀

    公开(公告)号:US20100218582A1

    公开(公告)日:2010-09-02

    申请号:US12718811

    申请日:2010-03-05

    IPC分类号: B21D39/08

    CPC分类号: E21B43/105

    摘要: A method of expanding tubing comprises locating an expansion device in tubing to be expanded, vibrating one or both of the tubing and the expansion device, and translating the expansion device relative to the tubing, the vibration acting to reduce friction between the tubing and the device.

    摘要翻译: 膨胀管道的方法包括将膨胀装置定位在待膨胀的管道中,使管道和膨胀装置中的一个或两个振动,以及相对于管道平移膨胀装置,所述振动用于减小管道和装置之间的摩擦 。

    Bore-lining tubing
    37.
    发明授权
    Bore-lining tubing 失效
    衬里管

    公开(公告)号:US07478651B2

    公开(公告)日:2009-01-20

    申请号:US11467223

    申请日:2006-08-25

    IPC分类号: F16L55/16

    摘要: A method of lining a bore section, the method comprises providing a first tubing section and an expandable thin-walled second tubing section. The first tubing section is run into a section of a bore. The second tubing section is then run into the bore section, within the first tubing section, and expanded to a larger diameter, such that the bore section is lined by at least two tubing sections.

    摘要翻译: 一种衬套孔部分的方法,所述方法包括提供第一管段和可膨胀的薄壁第二管段。 第一管段进入孔的一部分。 然后,第二管段在第一管段内进入孔部分,并膨胀成更大的直径,使得孔部分由至少两个管段排列。

    Tubing connector
    38.
    发明授权
    Tubing connector 有权
    管接头

    公开(公告)号:US07419193B2

    公开(公告)日:2008-09-02

    申请号:US10866319

    申请日:2004-06-11

    IPC分类号: F16L13/14 E21B23/00

    摘要: A method of coupling first and second expandable tubulars comprises providing a male tubular connector portion and a female tubular connection portion having greater yield strength, coupling the connector portions together, and expanding the coupled connector portions. The coupled connector portions may be expanded downhole.

    摘要翻译: 耦合第一和第二可膨胀管的方法包括提供具有较高屈服强度的阳管连接器部分和阴管连接部分,将连接器部分连接在一起,并且使连接的连接器部分膨胀。 联接的连接器部分可以在井下扩展。

    Downhole tool for deforming an object
    39.
    发明授权
    Downhole tool for deforming an object 有权
    用于使物体变形的井下工具

    公开(公告)号:US07152679B2

    公开(公告)日:2006-12-26

    申请号:US10119630

    申请日:2002-04-10

    IPC分类号: E21B29/00 E21B43/10 B21D26/02

    摘要: A downhole tool comprises a body defining a fluid chamber, a fluid outlet for directing fluid outwardly of the chamber, and an arrangement for producing a rapid reduction in the volume of the chamber, such that fluid in the chamber is displaced rapidly through the outlet. The fluid may be utilised to deform or perforate a surrounding tubular.

    摘要翻译: 井下工具包括限定流体室的主体,用于将流体引导到室的外部的流体出口,以及用于产生室的体积的快速减小的装置,使得室中的流体快速地通过出口移动。 流体可用于使周围的管状物变形或穿孔。