METHODS AND APPARATUSES TO GENERATE A FORMATION MODEL
    94.
    发明申请
    METHODS AND APPARATUSES TO GENERATE A FORMATION MODEL 审中-公开
    生成形态模型的方法和装置

    公开(公告)号:WO2015051287A1

    公开(公告)日:2015-04-09

    申请号:PCT/US2014/059116

    申请日:2014-10-03

    CPC classification number: G01V99/005 G01V3/08 G01V3/18 G01V3/28 G01V3/38 G06F17/18

    Abstract: Systems, methods, and apparatuses to generate a formation model are described. In one aspect, a logging system includes a transmitter to produce an electromagnetic field in a borehole, a receiver in the borehole to detect a first field signal induced by the electromagnetic field at a first depth of investigation and a second field signal induced by the electromagnetic field at a second depth of investigation, and a modeling unit to perform a first one-dimensional inversion on the first field signal and a second one-dimensional inversion on the second field signal, build a two-dimensional model from the first one-dimensional inversion and the second one-dimensional inversion, and perform a two-dimensional inversion on the two-dimensional model to generate a two-dimensional formation model.

    Abstract translation: 描述了用于生成形成模型的系统,方法和装置。 在一个方面,测井系统包括在钻孔中产生电磁场的发射器,钻孔中的接收器,用于检测由第一调查深度处的电磁场引起的第一场信号和由电磁场引起的第二场信号 场和第二场信号的第二一维反演;以及建模单元,用于对所述第一场信号执行第一一维反演,并且对所述第二场信号执行第二一维反演,从所述第一一维建立二维模型 反演和第二次一维反演,并对二维​​模型进行二维反演,生成二维形成模型。

    METHOD AND APPARATUS FOR DETERMINING FORMATION PROPERTIES USING NON-DIRECTIONAL ELECTROMAGNETIC MEASUREMENTS IN HIGH ANGLE OR HORIZONTAL WELLS
    96.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING FORMATION PROPERTIES USING NON-DIRECTIONAL ELECTROMAGNETIC MEASUREMENTS IN HIGH ANGLE OR HORIZONTAL WELLS 审中-公开
    用于在高角度或水平井中使用非定向电磁测量确定地层特性的方法和设备

    公开(公告)号:WO2015051123A1

    公开(公告)日:2015-04-09

    申请号:PCT/US2014/058835

    申请日:2014-10-02

    CPC classification number: G01V3/28 G01V3/30 G01V3/38

    Abstract: Embodiments set forth in this disclosure providing techniques for determining formation parameters, such as horizontal resistivity (Rh), vertical resistivity (Rv), and dip, in high angle and horizontal wells using non-directional resistivity measurements. For example, a method is provided that may include using an electromagnetic logging tool to acquire non-directional resistivity measurements in a wellbore of a high angle or horizontal well. The method may also include defining a processing window that corresponds to a measurement point of the electromagnetic logging tool along a well trajectory that intersects a at least one bed boundary between two layers of a subsurface formation. The method may also include defining a formation structure and defining an initial set of formation parameters for each layer in the formation structure. Furthermore, the method may include inverting the formation parameters for each layer.

    Abstract translation: 在本公开中提出的实施例提供了用于使用非定向电阻率测量结果在高角度和水平井中确定地层参数(诸如水平电阻率(Rh),垂直电阻率(Rv)和倾角)的技术 。 例如,提供了一种方法,其可以包括使用电磁测井工具来获取高角度井或水平井的井眼中的非定向电阻率测量值。 该方法还可以包括沿着井眼轨迹定义对应于电磁测井工具的测量点的处理窗口,该井眼轨迹与地下地层的两层之间的至少一个床边界相交。 该方法还可以包括定义地层结构并为地层结构中的每个层定义初始一组地层参数。 此外,该方法可以包括反转每层的地层参数。

    PRESSURE RELIEF SYSTEM FOR GAS LIFT VALVES AND MANDRELS
    100.
    发明申请
    PRESSURE RELIEF SYSTEM FOR GAS LIFT VALVES AND MANDRELS 审中-公开
    气体升降阀和阀门的压力释放系统

    公开(公告)号:WO2015042265A1

    公开(公告)日:2015-03-26

    申请号:PCT/US2014/056308

    申请日:2014-09-18

    CPC classification number: E21B43/123

    Abstract: Pressure relief systems for gas lift valves and mandrels are provided. In an implementation, a gas lift barrier mandrel includes two gas lift valves in series fluid communication. When fluid becomes confined between the two gas lift valves, an expansion volume is provided in one of the gas lift valves for pressure relief of the confined fluid, beginning at a pressure threshold value. The pressure relief may be mediated by a pressure-activated device, a piston, a spring, or a bellows to regulate the expansion of confined pressure. In an implementation, one of the gas lift valves may include a pressure relief valve to vent confined pressure from the gas lift valve to the production tubing or casing annulus. A check valve may be added in series with the pressure relief valve within the gas lift valve to prevent backflow through the pressure relief valve.

    Abstract translation: 提供了气举阀和心轴的泄压系统。 在一个实施方案中,气举阻挡心轴包括串联流体连通的两个气举阀。 当流体被限制在两个提升阀之间时,在气压提升阀之一中设置膨胀容积,用于从压力阈值开始,限制流体的压力释放。 压力释放可以由压力启动装置,活塞,弹簧或波纹管介导,以调节限制压力的膨胀。 在一个实施方案中,气举阀之一可以包括压力释放阀,以将限制压力从气举阀泄放到生产管或套管环。 止回阀可以与提升阀内的减压阀串联添加,以防止回流通过泄压阀。

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