储层油气预测中地震属性优选问题探讨  

Optimization problem of seismic attributes in hydrocarbon reservoir prediction

作　　者：倪逸[1] 杨慧珠[1] 郭玲萱 王倩[2] 张冲[2] 

机构地区：[1]清华大学工程力学系 [2]石油地球物理勘探局研究院地质中心

出　　处：《石油地球物理勘探》1999年第6期614-626,共13页Oil Geophysical Prospecting

摘　　要：在利用地震属性进行储层横向预测的实际工作中，用户普遍面临两个问题，即如何选取合适的地震属性和如何分析预测结果的可信度。本文在对出现假相关概率的因素进行分析的基础上，提出了一种能解决上述问题的简便方法。该方法从三个方面作地震属性参数优选及样本学习工作：①基于相关分析选取彼此独立的地震属性，②基于样本优选地震属性与细化输出类别，③基于统计分析化造典型样本；具有原理简单、易于实现的特点。文章最后以TZ1和TZ6井区的应用实例，说明该方法与采用常规流程相比，其预测结果更趋合理。In horizontal reservoir prediction using seismic attributes, engineers face two problems: how to choose suitable seismic attributes, and how to analyse the reliability of prediction result. A simple method for solving above problems is developed by analysing some factors causing false correlation probability. This method achieves seismic attribute optimization and sample learning in three aspects: choosing some independent seismic attributes by correlation analysis, seismic attribute optimization and detailed output category which are based on samples, and typical sample optimization based on statistical analysis. The method is characterized by simple principle and easy realization. The application examples in TZ1 and TZ6borehole areas show that its prediction results are more reasonable than those ofother ordinary methods.

关 键 词：地震属性 储集层预测 油气勘探 地震勘探 

分 类 号：P618.130.8[天文地球—矿床学] P618.130.2[天文地球—地质学]