Methods and apparatus for well construction
    1.
    发明授权
    Methods and apparatus for well construction 有权
    井施工方法与装置

    公开(公告)号:US07946359B2

    公开(公告)日:2011-05-24

    申请号:US12097368

    申请日:2006-12-06

    IPC分类号: E21B7/00

    CPC分类号: E21B7/20 E21B43/103

    摘要: A method of constructing a borehole drilled with a drilling apparatus (16), the method comprises: connecting a flexible tubular liner sleeve (22) around the outside of the drilling apparatus and connecting the sleeve around an upper opening of the borehole so as to pass into the borehole; progressively extending the sleeve into the borehole as drilling progresses while maintaining connection to the drilling apparatus and borehole opening; at a predetermined point in the drilling, expanding the sleeve so as to contact the borehole wall; and setting the sleeve so as to be fixed to the borehole wall after expansion. Apparatus for use in such a method comprises: a flexible, expandable sleeve (22); a first connector for connecting the sleeve around the outside of a drilling assembly; and a second connector for connecting the sleeve around the opening of the borehole; wherein the sleeve is arranged to extend through the borehole between the connectors as drilling progresses.

    摘要翻译: 一种构造用钻孔设备(16)钻孔的方法,所述方法包括:将柔性管状衬套(22)围绕钻孔设备的外部连接并将套筒围绕钻孔的上开口连接以便通过 进入井眼; 随着钻孔的进行,将套筒逐渐地延伸到钻孔中,同时保持与钻孔装置和钻孔开口的连接; 在钻孔中的预定点处,使套筒膨胀以接触钻孔壁; 并设置套筒,以便在膨胀后固定到井壁。 用于这种方法的装置包括:柔性可膨胀套筒(22); 用于将套筒连接在钻井组件的外部的第一连接器; 以及用于将所述套筒围绕所述钻孔的开口连接的第二连接器; 其中所述套筒布置成在钻孔进行时延伸穿过所述连接器之间的钻孔。

    Methods and apparatus for well construction
    2.
    发明授权
    Methods and apparatus for well construction 失效
    井施工方法与装置

    公开(公告)号:US07690437B2

    公开(公告)日:2010-04-06

    申请号:US12133059

    申请日:2008-06-04

    IPC分类号: E21B34/06

    CPC分类号: E21B17/1028 E21B33/1208

    摘要: A method of constructing a well comprising a borehole drilled through underground formations, comprises: positioning at least one device on the outside of the tubular string (e.g. a drill string or casing string), the device being operable to move between first and second configurations; positioning a tubular string in the borehole with the device positioned in the annular space between the tubular string and the borehole wall in its first configuration so as to interact with the tubular string and the borehole while allowing borehole fluid to flow along the annular space and around the device; and operating the device so as to move it from its first configuration to expand into its second configuration in which it substantially fills at least part of the annular space so as to inhibit flow of fluids along the borehole in the space. Apparatus comprises: a string of tubular members; at least one device positioned on the outside of the string, the device being operable to expand between: (i) a first configuration in which, when the tubular string is positioned in the borehole with the device located in the annular space between the tubular string and the borehole wall, interacts with the tubular string and the borehole while allowing borehole fluid to flow along the annular space and around the device; and (ii) a second configuration in which it substantially fills at least part of the annular space so as to prevent flow of fluids along the borehole in the space.

    摘要翻译: 一种构造井的方法,其包括通过地下地层钻探的钻孔,包括:将至少一个装置定位在所述管柱(例如钻柱或套管柱)的外侧上,所述装置可操作以在第一和第二构造之间移动; 将管状柱定位在钻孔中,其中该装置在其第一构造中位于管状柱和井眼壁之间的环形空间中,以便与管状柱和钻孔相互作用,同时允许钻孔流体沿着环形空间和周围流动 装置; 并且操作所述装置以使其从其第一构型移动到其第二构型,其中所述第二结构基本上填充所述环形空间的至少一部分,以便阻止流体沿着所述空间中的钻孔流动。 装置包括:一串管状构件; 至少一个装置,其位于弦的外部,该装置可操作以在以下之间膨胀:(i)第一构型,其中当管状柱位于钻孔中时,该装置位于管状柱之间的环形空间中 并且井壁与管柱和钻孔相互作用,同时允许钻孔流体沿着环形空间和设备周围流动; 和(ii)其中基本上填充至少部分环形空间以防止流体沿着该空间中的钻孔流动的第二构造。

    Methods and Apparatus for Well Construction
    3.
    发明申请
    Methods and Apparatus for Well Construction 有权
    井施工方法与装置

    公开(公告)号:US20090178809A1

    公开(公告)日:2009-07-16

    申请号:US12097368

    申请日:2006-12-06

    CPC分类号: E21B7/20 E21B43/103

    摘要: A method of constructing a borehole drilled with a drilling apparatus (16), the method comprises: connecting a flexible tubular liner sleeve (22) around the outside of the drilling apparatus and connecting the sleeve around an upper opening of the borehole so as to pass into the borehole; progressively extending the sleeve into the borehole as drilling progresses while maintaining connection to the drilling apparatus and borehole opening; at a predetermined point in the drilling, expanding the sleeve so as to contact the borehole wall; and setting the sleeve so as to be fixed to the borehole wall after expansion. Apparatus for use in such a method comprises: a flexible, expandable sleeve (22); a first connector for connecting the sleeve around the outside of a drilling assembly; and a second connector for connecting the sleeve around the opening of the borehole; wherein the sleeve is arranged to extend through the borehole between the connectors as drilling progresses.

    摘要翻译: 一种构造用钻孔设备(16)钻孔的方法,所述方法包括:将柔性管状衬套(22)围绕钻孔设备的外部连接并将套筒围绕钻孔的上开口连接以便通过 进入井眼; 随着钻孔的进行,将套筒逐渐地延伸到钻孔中,同时保持与钻孔装置和钻孔开口的连接; 在钻孔中的预定点处,使套筒膨胀以接触钻孔壁; 并设置套筒,以便在膨胀后固定到井壁。 用于这种方法的装置包括:柔性可膨胀套筒(22); 用于将套筒连接在钻井组件的外部的第一连接器; 以及用于将所述套筒围绕所述钻孔的开口连接的第二连接器; 其中所述套筒布置成在钻孔进行时延伸穿过所述连接器之间的钻孔。

    Methods and apparatus for well construction
    4.
    发明申请
    Methods and apparatus for well construction 失效
    井施工方法与装置

    公开(公告)号:US20090000793A1

    公开(公告)日:2009-01-01

    申请号:US12133059

    申请日:2008-06-04

    IPC分类号: E21B34/10 E21B19/16

    CPC分类号: E21B17/1028 E21B33/1208

    摘要: A method of constructing a well comprising a borehole drilled through underground formations, comprises: positioning at least one device on the outside of the tubular string (e.g. a drill string or casing string), the device being operable to move between first and second configurations; positioning a tubular string in the borehole with the device positioned in the annular space between the tubular string and the borehole wall in its first configuration so as to interact with the tubular string and the borehole while allowing borehole fluid to flow along the annular space and around the device; and operating the device so as to move it from its first configuration to expand into its second configuration in which it substantially fills at least part of the annular space so as to inhibit flow of fluids along the borehole in the space. Apparatus comprises: a string of tubular members; at least one device positioned on the outside of the string, the device being operable to expand between: (i) a first configuration in which, when the tubular string is positioned in the borehole with the device located in the annular space between the tubular string and the borehole wall, interacts with the tubular string and the borehole while allowing borehole fluid to flow along the annular space and around the device; and (ii) a second configuration in which it substantially fills at least part of the annular space so as to prevent flow of fluids along the borehole in the space.

    摘要翻译: 一种构造井的方法,其包括通过地下地层钻探的钻孔,包括:将至少一个装置定位在所述管柱(例如钻柱或套管柱)的外侧上,所述装置可操作以在第一和第二构造之间移动; 将管状柱定位在钻孔中,其中该装置在其第一构造中位于管状柱和井眼壁之间的环形空间中,以便与管状柱和钻孔相互作用,同时允许钻孔流体沿着环形空间和周围流动 装置; 并且操作所述装置以使其从其第一构型移动到其第二构型,其中所述第二结构基本上填充所述环形空间的至少一部分,以便阻止流体沿着所述空间中的钻孔流动。 装置包括:一串管状构件; 至少一个装置,其位于弦的外部,该装置可操作以在以下之间膨胀:(i)第一构型,其中当管状柱位于钻孔中时,该装置位于管状柱之间的环形空间中 并且井壁与管柱和钻孔相互作用,同时允许钻孔流体沿着环形空间和设备周围流动; 和(ii)其中基本上填充至少部分环形空间以防止流体沿着该空间中的钻孔流动的第二构造。

    Electrically conductive non-aqueous wellbore fluids
    10.
    发明授权
    Electrically conductive non-aqueous wellbore fluids 失效
    导电非水井筒流体

    公开(公告)号:US06787505B1

    公开(公告)日:2004-09-07

    申请号:US09508874

    申请日:2000-06-08

    IPC分类号: C09K706

    CPC分类号: C09K8/32 C09K8/34

    摘要: A wellbore fluid having a non-aqueous continuous liquid phase that exhibits an electrical conductivity of not less than 10 &mgr;S m−1 at 1 kHz comprises a polar organic liquid (POL) which exhibits a dielectric constant of at least about 5.0 and a Hildebrand Solubility Parameter of at least about 17 (J cm−3)1/2. Oils or other organic liquids (OL) known to be suitable as the continuous liquid phase of wellbore fluids, may be used in admixture with POL component. Certain inorganic salts, organic bases, quaternary ammonium salts or hydroxides (the dissolved component, DC), display sufficient solubility (and current carrying abilities) in POL, OL or in mixtures of liquid (POL) and liquid (OL) to further improve the electrical conductivity of the mixture. The wellbore fluid can be used for providing enhanced information from electrical logging tools, measurement while drilling, logging while drilling, geosteering and the like.

    摘要翻译: 具有在1kHz下表现出不小于10μSm-1的电导率的非水连续液相的井眼流体​​包括显示介电常数为至少约5.0的极性有机液体(POL),和 Hildebrand溶解度参数为至少约17(J cm -3)1/2。 已知适合作为井筒流体的连续液相的油或其它有机液体(OL)可以与POL组分混合使用。 某些无机盐,有机碱,季铵盐或氢氧化物(溶解组分,DC)在POL,OL或液体(POL)和液体(OL)的混合物中显示出足够的溶解度(和载流能力)),以进一步改善 混合物的电导率。 井眼流体可以用于从电测井工具提供增强的信息,钻井时的测量,钻井时的测井,地质导向等。