模糊判别在开发模式识别中的应用  

APPLICATION OF FUZZY DISCRIMINANT IN DEVELOPMENT MODEL IDENTIFICATION

作　　者：杨宇[1] 冯文光[1] 杨洪志[1] 

机构地区：[1]成都理工学院石油系

出　　处：《天然气工业》2001年第6期74-76,共3页Natural Gas Industry

摘　　要：在气藏动态分析与预测中，判别气藏的开发模式是一件重要的工作。但是，如何根据现场生产资料，判断某油气田属于哪一种理论模型，是一个较为费时的问题。而且，现在的几十种开发理论模型中，每一种开发模型都有若干个理论图版。怎样根据种类繁多的理论图版进行实测曲线的匹配，判断出气田的开发类型，就更加复杂。针对这一问题，文章完整分析了开发模型的ＲｐＶＤ判别图版与模糊集之间的关系，并在此基础上，阐述了应用模糊判别方法对开发模式进行计算机自动识别的算法。最后，结合现场资料进行了实例分析，并将计算结果与传统图版拟合的结果进行了对比，证明本方法不但方便、快捷，而且具有精度高的优点。It is an important work to identify gas reservoir development model in gas reservoir performance analysis and prediction,however,it is also a time-consuming problem to identify what kind of is theoretical model the oil and gas reservoir belongs to according to on-the-spot production data. Moreover, there are few tens of theoretical development models and each of them contains several theoretical charts. It is much more complicated to identify gas reservoir development pattern through matching measured curve with the various charts. For this reason, the relationship between the fuzzy set and the R p ~ VD type discriminant chart of development model is all-sidedly analyzed, then, the algorithm of auto matically identifying development model through computer by applying fuzzy discriminant method is stated in the paper. Finally,by means of analyzing an example in combination with on-the-spot data and of comparing the result calculated with that fitted by conventional charts.it is proved that this metho d is not only convenient and swift but also accurate.

关 键 词：气藏 开发方案 动态分析 模糊数学 图版 模糊判别 开发模式识别 

分 类 号：TE37[石油与天然气工程—油气田开发工程]