摘要
地层压力是一个重要的地质参数,准确地求取地层压力为气藏地质研究和评价、动态分析、储量计算等提供依据。在多层气藏开发过程中,层间压力的变化不同。随着开采年限的增加,层间压力差异显著,会出现层间窜流。因此有必要对多层气藏地层压力求解进行研究分析。通过建立多层气藏理论模型,求出分层平均压力的变化,并根据气层间压力平衡计算当前地层压力。实例计算表明,该方法适用性强、计算精度较高,可以减少压力测试工作量。
Formation pressure is an important parameter in geology,and it is the basics of the geology research,dynamic analysis and reserve calculation in gas reservoirs.In the development process of gas reservoirs,the pressure depletion in each layer is different.With the development is going on,there are significant differences in the pressure of each layer and there will be crossflow in the gas reservoirs.So it is necessary to research the method to obtain the formation pressure.Through establishing the theoretical model of layered gas reservoirs,the average formation pressure of each layer is obtained and the current formation pressure can be obtained by calculation of pressure equalization in different layers.The results of calculation by using the example show that the method has a strong application and high precision and can also reduce the amount of pressure test.
出处
《科学技术与工程》
北大核心
2013年第30期9025-9028,共4页
Science Technology and Engineering
关键词
地层压力
多层气藏
理论模型
压力平衡
formation pressure
layered gas reservoirs
theoretical model
pressure equalization
