动态追踪对比分析试井解释技术

WELL TEST INTERPRETATION BY PERFORMANCE TRACING COMPARISION AND ANALYSIS

不稳定试井是获取油气藏参数, 分析油气藏动态特征不可缺少的重要手段。近年来, 随着各油气田对科学生产的不断重视, 动态监测工作得到了很大的加强。目前, 对一些特特殊油气藏, 如高压凝析气藏等的解释工作, 从理论突破具有很大的难度, 但随着西气东输工程的开展, 这类解释工作急待解决。立足于现有的试井理论基础, 结合了概率论和现代油气藏动态分析技术, 对试井解释技术做了一定的探索, 通过对比一口井的不同开采时间的多次测试数据, 分析生产及增产措施的影响, 来达到提高试井解释的准确性和可靠性及测试资料的利用率的目的。通过大量实例的应用达到了很好的效果。

Transient testing is the necessary tool to acquire the reservoir parameters and analyze the features of reservoir performance. In the recent years, as the all oil/gas fields pay more attention to scientific production, the performance monitoring is enhanced greatly. Now, it is very difficult to make breakthrough theoretically for the interpretation of some special reservoirs such as condensate gas reservoirs with high pressure, etc. But the problem for their interpretation needs to be solved urgently as the engineering of “West—East Gas Transmission” goes on. Based on the existing theory of well test, with the probability theory and the modern analysis techniques of reservoir performance, the article explores the interpretation technology of well testing data. With comparing the multiple testing data at different productive time for the same well and analyzing the effects of production and stimulation, the target is reached to improve the accuracy and reliability of well testing interpretation and increase the utilization factor of well testing data. It is proven by many real cases the results are very good.