SERVICING A WELLBORE WITH AN AQUEOUS BASED FLUID COMPRISING A CLAY INHIBITOR
    91.
    发明申请
    SERVICING A WELLBORE WITH AN AQUEOUS BASED FLUID COMPRISING A CLAY INHIBITOR 有权
    使用包含粘土抑制剂的含水基液体维护井

    公开(公告)号:US20070261849A1

    公开(公告)日:2007-11-15

    申请号:US11382757

    申请日:2006-05-11

    IPC分类号: E21B33/13 E21B33/16

    摘要: A method of servicing a wellbore in contact with a subterranean formation comprising placing an aqueous composition comprising a mud displacement fluid and a clay inhibitor into the wellbore. An aqueous composition for servicing a wellbore comprising a mud displacement fluid and a clay inhibitor. A method of servicing a wellbore comprising introducing an aqueous wellbore servicing fluid comprising a clay inhibitor, thereby inhibiting the swelling of an argillaceous subterranean formation penetrated by the wellbore.

    摘要翻译: 一种维护与地下地层接触的井眼的方法,包括将包含泥浆置换流体和粘土抑制剂的水性组合物放入井筒中。 一种用于维修井筒的水性组合物,其包括泥浆置换流体和粘土抑制剂。 一种维修井筒的方法,包括引入包含粘土抑制剂的水井井服务流体,从而抑制井眼渗透的泥质地层的溶胀。

    Equalizer valve assembly
    92.
    发明申请
    Equalizer valve assembly 有权
    均衡阀总成

    公开(公告)号:US20070012448A1

    公开(公告)日:2007-01-18

    申请号:US11182401

    申请日:2005-07-15

    IPC分类号: E21B33/16

    CPC分类号: E21B33/16 E21B21/103

    摘要: A method for controlling a fluid pressure applied to a cementing plug comprises disposing the cementing plug within a casing string to define a trapped volume of fluid within the casing string, isolating a portion of the trapped volume of fluid adjacent the cementing plug to define an isolated volume of fluid, and relieving the fluid pressure within the isolated volume of fluid at a first rate sufficient to prevent damage to or inadvertent release of the cementing plug. An apparatus for relieving fluid pressure within a casing string being run into a well bore comprises at least one equalizer valve connected to a work string extending into the casing string, and a sealing device disposed above the equalizer valve to seal an annular space formed between the work string and the casing string.

    摘要翻译: 用于控制施加到固井塞的流体压力的方法包括将固井塞置于套管柱内以限定套管柱内的被捕获的流体体积,隔离邻近固井塞的流体的一部分被捕获的体积以限定隔离的 流体体积,并以足以防止粘结塞的损坏或无意释放的第一速率释放隔离体积的流体内的流体压力。 用于减轻套管柱内的流体压力进入井眼的装置包括连接到延伸到套管柱中的工作串的至少一个均衡阀,以及设置在均衡阀上方的密封装置,以密封形成在壳体中的环形空间 工作字符串和套管字符串。

    Apparatus and methods for improved fluid displacement in subterranean formations

    公开(公告)号:US07128149B2

    公开(公告)日:2006-10-31

    申请号:US11211974

    申请日:2005-08-24

    IPC分类号: E21B33/16 E21B49/08

    摘要: Apparatus and methods for determining suitable displacement fluids for use in subterranean cementing operations, and methods of cementing that use such displacement fluids, are provided. Examples of methods include methods of water-wetting an annulus in a subterranean formation having an oleaginous-external/aqueous-internal fluid disposed on at least a portion of one or more surfaces of the annulus. Another example of a method is a method of using an inverter fluid in a subterranean formation that includes a tubular string disposed therein having an annular region adjacent the outer surface of the tubular string, at least part of the annular region having an oleaginous-external/aqueous-internal fluid on a surface thereof. Another example of a method of the present invention is a method of identifying an inverter fluid to use for inverting an oleaginous-external/aqueous-internal fluid in a subterranean formation.

    Method of treating an oil or gas well with biodegradable low toxicity fluid system
    95.
    发明申请
    Method of treating an oil or gas well with biodegradable low toxicity fluid system 有权
    用可生物降解的低毒液体系统处理油井或气井的方法

    公开(公告)号:US20060096757A1

    公开(公告)日:2006-05-11

    申请号:US10985458

    申请日:2004-11-10

    IPC分类号: E21B33/16 E21B37/00 E21B43/25

    摘要: A method of treating a well consists of introducing into the wellbore a biodegradable fluid system containing a blend of lactic acid ester, such as ethyl lactate, and a fatty acid ester, such as methyl soyate. The fluid system may be further in the form of a microemulsion that is formed by combining a blend with one or more emulsifiers, an alcohol, and water. The fluid system may be used in displacement, well remediation and stimulation as well as additional, alternative applications such as the cleaning of surface and/or downhole equipment.

    摘要翻译: 处理井的方法包括将包含乳酸酯(例如乳酸乙酯)和脂肪酸酯如大豆酸甲酯的共混物的可生物降解的流体体系引入井眼。 流体系统还可以是通过将共混物与一种或多种乳化剂,醇和水组合而形成的微乳液形式。 流体系统可以用于位移,良好的补救和刺激以及额外的替代应用,例如清洁表面和/或井下设备。

    Downhole filter
    99.
    发明申请
    Downhole filter 有权
    井下过滤器

    公开(公告)号:US20050121232A1

    公开(公告)日:2005-06-09

    申请号:US10900076

    申请日:2004-07-27

    摘要: In one aspect, a downhole filter comprises a tubular member having a wall defining a plurality of openings. The openings have an outer width less than an inner width. The parts of the opening defining the smaller width are defined by radially outer parts of the openings, such that particulates or sand prevented from passing through the openings will tend to be retained to the outside of the tubular member. In another aspect, a method comprises providing a tubular string having a non-porous tubular portion and a porous tubular portion, and installing the tubular string within a wellbore such that the porous tubular portion is located adjacent a fluid-producing formation within the wellbore. In yet another aspect, an apparatus comprises a drill string comprising a non-porous tubular portion and a porous tubular portion, and an earth removal member operatively connected to a lower end of the drill string.

    摘要翻译: 在一个方面,井下过滤器包括具有限定多个开口的壁的管状构件。 这些开口具有小于内部宽度的外部宽度。 限定较小宽度的开口的部分由开口的径向外部部分限定,使得防止通过开口的微粒或沙子将倾向于保持在管状构件的外部。 在另一方面,一种方法包括提供具有无孔管状部分和多孔管状部分的管状管柱,以及将管状管柱安装在井眼内,使得多孔管状部分邻近于井筒内的流体产生地层。 在另一方面,一种装置包括钻柱,其包括无孔管状部分和多孔管状部分,以及可操作地连接到钻柱的下端的除土构件。

    Compressible darts and methods for using these darts in subterranean wells
    100.
    发明申请
    Compressible darts and methods for using these darts in subterranean wells 有权
    可压缩飞镖和在地下井中使用这些飞镖的方法

    公开(公告)号:US20050103504A1

    公开(公告)日:2005-05-19

    申请号:US10714832

    申请日:2003-11-14

    申请人: David Szarka

    发明人: David Szarka

    IPC分类号: E21B33/16 E21B33/12 E21B23/00

    CPC分类号: E21B33/16

    摘要: The present invention relates generally to subterranean well construction, and more particularly, to improved darts and methods of using these darts in subterranean wells. In one embodiment, the present invention provides a dart for activating a plug located within a subterranean well bore, the dart comprising a mandrel, and a foam body attached to the mandrel. Optionally, an elastic tether can be included, inter alia, to absorb the deformation of the foam body.

    摘要翻译: 本发明一般涉及地下井构造,更具体地说,涉及在地下井中使用这些飞镖的改进飞镖和方法。 在一个实施例中,本发明提供了一种用于激活位于地下井眼内的塞子的飞镖,飞镖包括心轴和连接到心轴的泡沫体。 可选地,可以包括弹性系绳,特别是吸收泡沫体的变形。