System and methods of deriving differential fluid properties of downhole fluids
    4.
    发明授权
    System and methods of deriving differential fluid properties of downhole fluids 有权
    导出井下流体的差分流体性质的系统和方法

    公开(公告)号:US07398159B2

    公开(公告)日:2008-07-08

    申请号:US11207043

    申请日:2005-08-18

    IPC分类号: G01V9/00

    CPC分类号: E21B49/005 E21B49/00

    摘要: Methods and systems are provided for downhole analysis of formation fluids by deriving differential fluid properties and associated uncertainty in the predicted fluid properties based on downhole data less sensitive to systematic errors in measurements, and generating answer products of interest based on the differences in the fluid properties. Measured data are used to compute levels of contamination in downhole fluids using, for example, an oil-base mud contamination monitoring (OCM) algorithm. Fluid properties are predicted for the fluids and uncertainties in predicted fluid properties are derived. A statistical framework is provided for comparing the fluids to generate robust, real-time answer products relating to the formation fluids and reservoirs thereof. Systematic errors in measured data are reduced or eliminated by preferred sampling procedures.

    摘要翻译: 提供了方法和系统,用于通过基于对测量中的系统误差不太敏感的井下数据,通过基于流体性质的差异来产生感兴趣的答案产品,通过导出差分流体性质和预测流体特性中的相关不确定性来进行井下分析 。 测量数据用于使用例如油基泥浆污染监测(OCM)算法来计算井下流体中的污染水平。 预测流体的流体性质,并推导出预测的流体性质的不确定性。 提供了一种统计框架,用于比较流体以产生与其地层流体及其储层相关的鲁棒的实时回答产品。 通过优选的采样程序减少或消除了测量数据中的系统误差。

    INTERVENTION BLOWOUT PREVENTER AND WELL INTERVENTION TOOL
    5.
    发明申请
    INTERVENTION BLOWOUT PREVENTER AND WELL INTERVENTION TOOL 审中-公开
    干预防雾剂和良好的干预工具

    公开(公告)号:US20140124686A1

    公开(公告)日:2014-05-08

    申请号:US14130191

    申请日:2012-06-29

    IPC分类号: E21B33/064

    CPC分类号: E21B33/064 E21B33/076

    摘要: The present invention relates to an intervention blowout preventer (1) for being mounted on a well head (2) or a Christmas tree, comprising a plurality of valves (3, 4) arranged in fluid communication with each other, connected and forming a tubular pipe (5) enclosing a cavity being in fluid communication with the well head when the intervention blowout preventer is mounted onto the well head and at least one plug (37) in the well head has been removed, wherein the intervention blowout preventer further comprises a pressure reducing system (1) comprising a chamber (6) and a piston (7) arranged inside the chamber dividing the chamber into a first chamber part (8) and a second chamber part (9), the first chamber part being in fluid communication with the cavity and the second chamber part being filled with a compressible fluid, such as gas. Furthermore, the invention relates to a well intervention tool (100), a well intervention system (200) and a well intervention method.

    摘要翻译: 本发明涉及一种用于安装在井口(2)或圣诞树上的干预防喷器(1),包括多个彼此流体连通的阀(3,4),连接并形成管状 当所述干预防喷器安装在所述井口上并且已经去除所述井口中的至少一个塞子(37)时,所述管道(5)包围与所述井口流体连通的空腔,其中所述干预防喷器还包括 减压系统(1)包括设置在室内的室(6)和活塞(7),所述活塞(7)将室分隔成第一室部分(8)和第二室部分(9),第一室部分处于流体连通 其中空腔和第二室部分填充有可压缩流体,例如气体。 此外,本发明涉及井干预工具(100),井干预系统(200)和井介入方法。

    Annular barrier with pressure amplification

    公开(公告)号:US09725980B2

    公开(公告)日:2017-08-08

    申请号:US14238239

    申请日:2012-08-30

    摘要: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole for providing zone isolation between a first zone and a second zone of the borehole, comprising a tubular part for mounting as part of the well tubular structure and having an expansion opening, an expandable sleeve surrounding the tubular part, each end of the expandable sleeve being connected with the tubular part, and an annular barrier space between the tubular part and the expandable sleeve, wherein the annular barrier further comprises a pressure intensifying means having an inlet in a first end in fluid communication with the expansion opening and having an outlet in a second end in fluid communication with the annular barrier space.

    Annular barrier with axial force mechanism

    公开(公告)号:US09708862B2

    公开(公告)日:2017-07-18

    申请号:US14344764

    申请日:2012-09-12

    IPC分类号: E21B33/127 E21B17/00

    CPC分类号: E21B17/00 E21B33/1277

    摘要: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole for providing zone isolation between a first zone and a second zone of the borehole. The annular barrier comprises a tubular part extending in a longitudinal direction for mounting as part of the well tubular structure; an expandable sleeve surrounding the tubular part and defining a space being in fluid communication with an inside of the tubular part; a first fluid passage for letting fluid into the space to expand the sleeve; and a connection unit comprising a connection part slidably connected with the tubular part, a first end of the expandable sleeve being connected with the connection part, wherein the connection unit further comprises a stationary part fixedly connected with the tubular part and an actuation mechanism adapted to induce an axial force on the first end of the expandable sleeve.

    ANNULAR BARRIER WITH PRESSURE AMPLIFICATION
    8.
    发明申请
    ANNULAR BARRIER WITH PRESSURE AMPLIFICATION 有权
    带压力放大器的环形障碍器

    公开(公告)号:US20140216755A1

    公开(公告)日:2014-08-07

    申请号:US14238239

    申请日:2012-08-30

    IPC分类号: E21B33/127 E21B23/06

    摘要: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole for providing zone isolation between a first zone and a second zone of the borehole, comprising a tubular part for mounting as part of the well tubular structure and having an expansion opening, an expandable sleeve surrounding the tubular part, each end of the expandable sleeve being connected with the tubular part, and an annular barrier space between the tubular part and the expandable sleeve, wherein the annular barrier further comprises a pressure intensifying means having an inlet in a first end in fluid communication with the expansion opening and having an outlet in a second end in fluid communication with the annular barrier space.

    摘要翻译: 本发明涉及一种在井管结构和钻孔内壁之间的环形空间中膨胀的环形阻挡件,用于在钻孔的第一区域和第二区域之间提供区域隔离,包括用于安装为部分的管状部件 并且具有膨胀开口,围绕所述管状部分的可膨胀套筒,所述可膨胀套筒的每个端部与所述管状部件连接,以及在所述管状部件和所述可膨胀套筒之间的环形阻挡空间,其中所述环形阻挡件 进一步包括压力增强装置,其具有在第一端处与所述膨胀开口流体连通并具有在与所述环形阻挡空间流体连通的第二端中的出口的入口。

    ANNULAR BARRIER WITH COMPENSATION DEVICE
    9.
    发明申请
    ANNULAR BARRIER WITH COMPENSATION DEVICE 审中-公开
    带补偿装置的环形障碍物

    公开(公告)号:US20140190683A1

    公开(公告)日:2014-07-10

    申请号:US14238251

    申请日:2012-08-30

    IPC分类号: E21B33/128

    摘要: The present invention relates to an annular barrier to be expanded in an annulus between a well tubular structure and an inside wall of a borehole downhole for providing zone isolation between a first zone and a second zone of the borehole, comprising a tubular part for mounting as part of the well tubular structure, the tubular part having a longitudinal axis, an expandable sleeve surrounding the tubular part and defining a space being in fluid communication with an inside of the tubular part, each end of the expandable sleeve being connected with the tubular part, and an aperture for letting fluid into the space to expand the expandable sleeve, wherein the barrier further comprises a compensation device arranged in the space between the expandable sleeve and the tubular part, the compensation device having a chamber in which a piston is arranged dividing the chamber in a first and a second chamber part, the first chamber part being in fluid communication with the space and the second chamber part comprising gas.

    摘要翻译: 本发明涉及一种在井筒结构与钻井井下内壁之间的环形空间中扩展的环形阻挡件,用于在钻孔的第一区域和第二区域之间提供区域隔离,包括用于安装为 井管结构的一部分,管状部分具有纵向轴线,围绕管状部分并限定与管状部分的内部流体连通的空间的可膨胀套筒,可膨胀套筒的每个端部与管状部件连接 以及用于使流体进入所述空间以扩张所述可膨胀套筒的孔,其中所述屏障还包括布置在所述可膨胀套筒和所述管状部分之间的空间中的补偿装置,所述补偿装置具有腔室,活塞被分开 所述室在第一和第二室部分中,所述第一室部分与所述空间和所述第二室部分流体连通 室部分包括气体。