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煤储层流体压力在煤层气抽采过程中会产生动态变化,从而深刻的影响到煤层气井的产气能力。其中,煤储层水压动态变化是最为敏感的参数之一。本文综合运用煤层气地质学、油藏数值模拟、数学地质等学科的理论和方法,并详细的分析了水压与产能间的关系;建立了水压与煤层气产能间的数学模型,并结合研究对象对所建数学模型求解利用Visual Basic程序设计语言,构建了煤层气数据管理信息系统。
The fluid pressure of coal reservoir will produce dynamic changes in the process of coalbed methane extraction, which will have a profound impact on the gas production capacity of coalbed methane wells. Among them, the dynamic change of coal reservoir pressure is one of the most sensitive parameters. In this paper, the theories and methods of CBM geology, reservoir numerical simulation, mathematical geology and other disciplines are comprehensively applied. The relationship between hydraulic pressure and production capacity is analyzed in detail. A mathematical model of hydraulic pressure and CBM production capacity is established and combined The object of study to build the mathematical model using Visual Basic programming language, build a CBM data management information system.