分形几何在隔层分类研究中的应用

Application of fractal geometry in barrier bed classification

李丽 赵则阳 王玉兰 常飞

中原油田分公司勘探开发科学研究院，河南 濮阳 457001 中原油田分公司采油二厂，河南 范县 457532

陆相碎屑岩储层中，隔层大多分为泥质隔层、钙质隔层、物性隔层，不同类型的隔层对油气水分布的控制不同，挖潜手段也有所区别。常规隔层分类研究多采用岩心分析结果对应测井曲线进行“岩电关系”判定。利用测井曲线具有分形特征，尝试利用分形几何学方法进行隔层分类研究，通过在濮城油田沙二上2+3油藏的应用，取得较好效果。该方法通过计算机实现，降低了工作强度且识别率高，具有较强的实用价值。

Barrier beds in terrestrial clastic reservoir are divided into three categories as muddy,calcareous and physical property ones. Different barrier beds can result in the different distribution types of fluid and different engineering technology for tapping the reservoir potential. Normal classification method for barrier beds is to use the core analysis result to decide the litho-electric relationship of logging curve. This paper tries to use the fractal geometry method to classify barrier beds. The method is applied in S₂²⁺³ reservoir of Pucheng Oilfield with a good result and is implemented by computer technology,which can reduce the power of
work and have the high discrimination and utility value