Methods and apparatus for well construction
    21.
    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
    22.
    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
    23.
    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。

    Borehole stabilisation
    24.
    发明授权
    Borehole stabilisation 失效
    井眼稳定

    公开(公告)号:US07231975B2

    公开(公告)日:2007-06-19

    申请号:US10492398

    申请日:2002-09-25

    IPC分类号: E21B33/00

    摘要: A method for stabilising an unconsolidated zone (18) of a borehole, by forming a region of the borehole having enlarged diameter (22) in the unconsolidated zone; positioning a fluid-filled casing (26) in the borehole the liner having a pipe (28) extending therethrough into a lower portion; pumping cement from the surface inside the pipe so as to exit the liner at the lower portion and flow upwards to fill the annulus (44) formed between the outside of the liner and the borehole in the unconsolidated zone; withdrawing the pipe (28) from the casing while pumping fluid therethrough so as to maintain the liner substantially fluid-filled and to displace cement above the liner in the adjacent region; drilling through the cement and liner in the unconsolidated zone after the cement has set.

    摘要翻译: 一种用于通过在所述未固结区域中形成具有增大的直径(22)的钻孔区域来稳定钻孔的未固结区域(18)的方法; 将流体填充的壳体(26)定位在钻孔中,衬套具有穿过其延伸到下部的管(28); 从管道内的表面抽出水泥,以便在下部离开衬套并向上流动以填充形成在衬套的外部和未固结区域中的钻孔之间的环(44); 从外壳抽出管道(28),同时泵送流体通过其中,以便保持衬套基本上是流体填充的,并且使相邻区域中的衬套上方的水泥置换; 在水泥固化之后,通过未固结区域的水泥和衬管进行钻孔。

    Method and apparatus for well treatment
    25.
    发明授权
    Method and apparatus for well treatment 有权
    井处理方法和装置

    公开(公告)号:US08833455B2

    公开(公告)日:2014-09-16

    申请号:US11718078

    申请日:2005-10-26

    IPC分类号: E21B33/138

    CPC分类号: E21B33/138 E21B27/02

    摘要: A well treatment tool, comprising: a tool body; a clamping system for locating the tool body in a well; a positioning system for orienting the tool body in the well axially and azimuthally; a reservoir system comprising at least one fluid reservoir in the tool body; and a pumping system for pumping fluid from the reservoir to a region of the well to be treated. The treatment tool can also re-established the isolation performance of the casing, when modified (by drilling) for the treatment. The treatment tool is normally conveyed and controlled via the mean of an electrical wireline cable.

    摘要翻译: 一种井下处理工具,包括:工具体; 用于将工具主体定位在井中的夹紧系统; 定位系统,用于将工具主体沿轴向和方位角定位在井中; 储存器系统,其包括所述工具主体中的至少一个流体储存器; 以及用于将流体从储存器泵送到待处理井的区域的泵送系统。 当修改(通过钻孔))处理时,处理工具还可以重新建立套管的隔离性能。 处理工具通常通过电缆线的平均值传送和控制。

    Field-responsive fluids
    26.
    发明授权
    Field-responsive fluids 有权
    场响应流体

    公开(公告)号:US08506837B2

    公开(公告)日:2013-08-13

    申请号:US12112003

    申请日:2008-04-30

    IPC分类号: B32B15/18 C04B35/26 E21B31/06

    摘要: A field-responsive fluid which enters a semi-solid state in the presence of an energy field is improved by use of a plurality of energy field responsive particles which form chains in response to the energy field. The particles can be (a) composite particles in which at least one field-responsive member having a first density is attached to at least one member having a second density that is lower than the first density, (b) shaped particles in which at least one field-responsive member has one or more inclusions, and (c) combinations thereof. The particles improve the field-responsive fluid by reducing density without eliminating field-responsive properties which afford utility. Further, a multi-phase base fluid including a mixture of two or more substances, at least two of which are immiscible, may be used. The multi-phase base fluid improves the field-responsive fluid because surface tension between the boundaries of the immiscible substances in conjunction with chains formed by field-responsive particles tends to stop or retard creep flow, resulting an improved dynamic or static seal.

    摘要翻译: 通过使用响应于能量场形成链的多个能量场响应颗粒来改善在存在能量场的情况下进入半固体状态的场响应流体。 颗粒可以是(a)复合颗粒,其中具有第一密度的至少一个场响应构件附着到具有低于第一密度的第二密度的至少一个构件,(b)成形颗粒,其中至少 一个场响应构件具有一个或多个夹杂物,和(c)它们的组合。 颗粒通过降低密度来改善场响应流体,而不消除提供效用的场响应特性。 此外,可以使用包括两种或更多种物质的混合物的多相基流体,其中至少两种物质是不混溶的。 多相基础流体改善了场响应流体,因为不可混溶物质的边界与由场响应颗粒形成的链结合的表面张力倾向于停止或延缓蠕变流动,导致改进的动态或静态密封。

    Method of cementing expandable well tubing
    27.
    发明授权
    Method of cementing expandable well tubing 失效
    固井扩管井方法

    公开(公告)号:US07591320B2

    公开(公告)日:2009-09-22

    申请号:US11667416

    申请日:2005-11-08

    IPC分类号: E21B33/14 E21B43/10

    摘要: The invention describes a method of lining a well using expandable tubing including the steps of lowering a expandable tubing in a well bore; injecting a sealant composition into said well; letting the sealant composition solidify into a deformable matrix embedding at least a bottom section of said tubing within said well; and expanding the tubing. The invention allows the creation of a high quality seal at the shoe of the expandable casing because the deformable material is highly stressed by the expansion, and it also allows for the rest of the casing to be properly supported and protected by conventional cement, without incurring excessive wait-on-cement times.

    摘要翻译: 本发明描述了使用可扩展管道衬套井的方法,包括以下步骤:降低井眼中的可扩张管; 将密封剂组合物注入所述孔中; 使密封剂组合物固化成可变形的基体,该可变形基体将所述管的至少一个底部嵌入所述孔内; 并扩大管道。 本发明允许在可膨胀套管的鞋上产生高质量的密封,因为可变形材料通过膨胀而受到高度的应力,并且还允许壳体的其余部分被常规水泥适当地支撑和保护,而不会引起 过多的等待水泥时间。

    MONITORING, CONTROLLING AND ENHANCING PROCESSES WHILE STIMULATING A FLUID-FILLED BOREHOLE
    28.
    发明申请
    MONITORING, CONTROLLING AND ENHANCING PROCESSES WHILE STIMULATING A FLUID-FILLED BOREHOLE 有权
    在流体填充孔中刺激时的监测,控制和增强过程

    公开(公告)号:US20090159272A1

    公开(公告)日:2009-06-25

    申请号:US11962190

    申请日:2007-12-21

    IPC分类号: E21B47/12

    CPC分类号: E21B47/101 E21B43/17 G01V1/44

    摘要: Tubewaves are used for detection and monitoring of feature state to enhance stimulation operations and remediate failure conditions. For example, proper sealing of perforations may be confirmed based on lack of a reflection of a tubewave by the perforations. Alternatively, at least one of amplitude, frequency, attenuation, dispersion and travel time associated with a tubewave and reflection may be used to determine feature state. If a sealant fails during treatment then the failure condition is indicated by appearance of a tubewave reflection. Consequently, the stimulation operation can be stopped in a timely manner, and remediation by means, for example, of pumping diversion fluid or dropping of balls, can be reinitiated until the difference between the expected responses and responses measured by the instrument along the segment to be stimulated confirm that sealing has taken place and that stimulation of the intended zone can resume. Further, specific remediation steps may be selected based on response of the borehole system to tubewaves. The efficacy of the selected remediation steps may also be determined by response of the borehole system to tubewaves during or after execution of those steps.

    摘要翻译: 涡卷用于检测和监测特征状态,以增强刺激操作并修复故障条件。 例如,可以基于穿孔对波管的反射不能确认适当的穿孔密封。 或者,可以使用与波管和反射相关联的幅度,频率,衰减,色散和行进时间中的至少一个来确定特征状态。 如果密封剂在处理过程中出现故障,则故障条件由管道反射的外观指示。 因此,可以及时地停止刺激操作,并且可以重新启动例如通过泵送分流流体或者球的掉落来进行的补救,直到由仪器沿着该段测量的预期响应和响应之间的差异 被刺激确认已经发生密封,并且可以恢复预期区域的刺激。 此外,可以基于钻孔系统对管道的响应来选择具体的修复步骤。 所选择的修复步骤的功效也可以通过钻孔系统在执行这些步骤期间或之后对管道的响应来确定。

    Method of sealing an annulus surrounding a slotted liner
    30.
    发明授权
    Method of sealing an annulus surrounding a slotted liner 有权
    密封带槽衬套周围的环的方法

    公开(公告)号:US06817415B2

    公开(公告)日:2004-11-16

    申请号:US10289184

    申请日:2002-11-05

    IPC分类号: E21B3313

    CPC分类号: E21B33/12 E21B33/13

    摘要: A method of sealing an annulus surrounding a slotted liner in a well includes the steps of generating a magnetic field in the annulus in a region to be sealed; and injecting into the region a sealing fluid including magnetic particles such that the fluid is confined to fill the annulus in the region to be sealed by the interaction of the magnetic particles and the magnetic field.

    摘要翻译: 密封在井中的开槽衬垫周围的环的方法包括以下步骤:在要密封的区域中的环空中产生磁场; 并且将包括磁性颗粒的密封流体注入到该区域中,使得流体被限制以通过磁性颗粒和磁场的相互作用来填充被密封的区域中的环带。