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    • 4. 发明授权
    • Method and system for measuring multiphase flow using multiple pressure differentials
    • 使用多个压力差测量多相流的方法和系统
    • US06332111B1
    • 2001-12-18
    • US09401375
    • 1999-09-22
    • James R. Fincke
    • James R. Fincke
    • G01F174
    • G01F15/08G01F1/44G01F1/74G01F1/88
    • An improved method and system for measuring a multiphase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multiphase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The method for determining the mass flow of the high void fraction fluid flow and the gas flow includes certain steps. The first step is calculating a gas density for the gas flow. The next two steps are finding a normalized gas mass flow rate through the venturi and computing a gas mass flow rate. The following step is estimating the gas velocity in the venturi tube throat. The next step is calculating the pressure drop experienced by the gas-phase due to work performed by the gas phase in accelerating the liquid phase between the upstream pressure measuring point and the pressure measuring point in the venturi throat. Another step is estimating the liquid velocity in the venturi throat using the calculated pressure drop experienced by the gas-phase due to work performed by the gas phase. Then the friction is computed between the liquid phase and a wall in the venturi tube. Finally, the total mass flow rate based on measured pressure in the venturi throat is calculated, and the mass flow rate of the liquid phase is calculated from the difference of the total mass flow rate and the gas mass flow rate.
    • 一种用于测量压力流量计中的多相流的改进方法和系统。 使用延长的喉管文丘里管,并且在文丘里管中的三个或更多个位置处测量多相流的压力,其在流动管道中限定两个或更多个压力差。 然后使用差压来计算气相的质量流量,总质量流量和液相。 用于确定高空隙率流体流和气流的质量流量的方法包括某些步骤。 第一步是计算气体流量的气体密度。 接下来的两个步骤是通过文丘里管找到归一化的气体质量流量并计算气体质量流量。 以下步骤是估算文丘里管喉管中的气体速度。 下一步是计算由于气相在文丘里喉部上游压力测量点和压力测量点之间的液相加速过程中气相所产生的压降。 另一个步骤是使用由气相进行的工作由气相经历的计算压降来估算文丘里喉部的液体速度。 然后在文丘里管中的液相和壁之间计算摩擦。 最后,计算出文丘里喉部测量压力的总质量流量,并根据总质量流量与气体质量流量的差值计算液相质量流量。
    • 8. 发明授权
    • System for measuring multiphase flow using multiple pressure differentials
    • 使用多个压力差测量多相流的系统
    • US06502467B1
    • 2003-01-07
    • US09400946
    • 1999-09-22
    • James R. Fincke
    • James R. Fincke
    • G01F144
    • G01F15/08G01F1/44G01F1/74G01F1/88
    • An improved method and system for measuring a multi-phase flow in a pressure flow meter. An extended throat venturi is used and pressure of the multi-phase flow is measured at three or more positions in the venturi, which define two or more pressure differentials in the flow conduit. The differential pressures are then used to calculate the mass flow of the gas phase, the total mass flow, and the liquid phase. The system for determining the mass flow of the high void fraction fluid flow and the gas flow includes taking into account a pressure drop experienced by the gas phase due to work performed by the gas phase in accelerating the liquid phase.
    • 一种用于测量压力流量计中多相流的改进方法和系统。 使用延长的喉管文丘里管,并且在文丘里管中的三个或更多个位置处测量多相流的压力,其在流动管道中限定两个或更多个压力差。 然后使用差压来计算气相的质量流量,总质量流量和液相。 用于确定高空隙部分流体流量和气流的质量流量的系统包括考虑由气相在加速液相中进行的工作时气相所经历的压降。
    • 9. 发明授权
    • Methods for use in detecting seismic waves in a borehole
    • 用于检测井眼中的地震波的方法
    • US07178627B2
    • 2007-02-20
    • US11378565
    • 2006-03-16
    • Phillip B. WestJames R. FinckeTeddy R. Reed
    • Phillip B. WestJames R. FinckeTeddy R. Reed
    • G01V1/20G01V1/16G01V1/44
    • G01V1/40G01V1/16
    • The invention provides methods and apparatus for detecting seismic waves propagating through a subterranean formation surrounding a borehole. In a first embodiment, a sensor module uses the rotation of bogey wheels to extend and retract a sensor package for selective contact and magnetic coupling to casing lining the borehole. In a second embodiment, a sensor module is magnetically coupled to the casing wall during its travel and dragged therealong while maintaining contact therewith. In a third embodiment, a sensor module is interfaced with the borehole environment to detect seismic waves using coupling through liquid in the borehole. Two or more of the above embodiments may be combined within a single sensor array to provide a resulting seismic survey combining the optimum of the outputs of each embodiment into a single data set.
    • 本发明提供了用于检测通过围绕钻孔的地下地层传播的地震波的方法和装置。 在第一实施例中,传感器模块使用滚珠轮的旋转来延伸和缩回用于选择性接触和磁耦合的传感器封装,以便套管衬在井眼上。 在第二实施例中,传感器模块在其行进期间磁耦合到壳体壁并沿着其拖动同时保持与其的接触。 在第三实施例中,传感器模块与井眼环境接口以通过钻孔中的液体耦合来检测地震波。 上述实施例中的两个或更多个可以在单个传感器阵列内组合以提供将每个实施例的最佳输出组合成单个数据集的最终地震勘测。