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随着天然气工业的发展,近年来生产中,对裂缝性气田储量计算工作,提出了迫切的要求。希望能早期、快速、分类、准确地预报气田气井控制的储量。过去采用的方法主要是压降法和容积法。这两种方法虽然在气田勘探开发工作中起了一定的作用,但还有很多局限性。对裂缝性石灰岩地层的气田储量的早期预报问题,我们根据现场的实际资料,参考国外 D·波拉等人的理论研究成果,归纳出几种利用不稳定试井压力动态资料的整理方法——差分差值法、双重介质法和探边分析等方法,并进行了一些初步分析研究和现场试验,介绍于下。
With the development of the natural gas industry, in recent years, the production of fractured gas reserves has put forward urgent requirements. It is hoped that early, rapid, classified and accurate prediction of gas well control reserves. The methods used in the past were mainly pressure drop method and volumetric method. Although these two methods play a certain role in the exploration and development of gas field, there are still many limitations. According to the actual data of the site and the theoretical research achievements of foreign D · Polla et al., We summarize several methods to sort out the dynamic pressure of unstable wellbore formations based on the field prediction of gas field reserves in fractured limestone formations. Differential difference method, double media method and edge detection methods, and conducted some preliminary analysis and field experiments, introduced in the next.