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    • 80. 发明授权
    • Formation pressure sensing system
    • 地层压力传感系统
    • US09435188B2
    • 2016-09-06
    • US14350380
    • 2012-10-10
    • Ian Gray
    • Ian Gray
    • E21B47/00E02D33/00E21B47/06E21B33/13E21B47/01
    • E21B47/00E02D33/00E21B33/13E21B47/01E21B47/06
    • A method of installing a pressure transducer in a borehole to measure the fluid prepare of a geological formation. The pressure transducer is installed into the borehole at a desired depth, and then the borehole is filled with a cement grout. The fluid connection between the pressure transducer and the formation is opened by pumping a fluid through tubing to displace the cement grout. A process of hydrofracture can be employed to provide a communication path of fluid between the formation and the pressure transducer surrounded by the fractured grout. In one embodiment of the invention, a pressure transducer is cemented into the borehole along with a check and pressure relief valve. In another embodiment, the pressure transducer is installed in the tubing at a subsequent stage.
    • 在井眼中安装压力传感器以测量地质构造的流体的方法。 压力传感器以期望的深度安装到钻孔中,然后钻孔填充有水泥浆。 压力传感器和地层之间的流体连接通过泵送流体通过管道来移开水泥浆料而打开。 可以采用水力断裂的过程来提供地层与由裂缝灌浆包围的压力传感器之间的流体的连通路径。 在本发明的一个实施例中,压力传感器与止回阀和压力释放阀一起胶合到钻孔中。 在另一个实施例中,压力传感器在随后的阶段安装在管道中。