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首先阐述了利用测井曲线进行小层划分的原理和方法 ,采用层内差异法和聚类分析法相结合进行分层 ,该方法是目前利用测井曲线进行小层划分和对比 ,并最终实现定量化、自动化的一条较为有效的途径。通过大量地质研究认为卡准所分地层的顶、底界是自动分层的基础 ,而对分层参数 (B值和dmin 值 )的选取以及一些分层处理技巧都必须密切结合本地区的储层分布特征 ,从而取得较为理想的效果。结合杏北地区河流相储层的具体实际 ,对区内葡Ⅰ 1～ 3主力油层进行划分和对比。通过对比 52口井的自动分层与人工分层结果 ,发现二者具有较高的符合程度 ,大大提高了小层划分的效率。
First of all, the principle and method of using the well logging curve to divide the small layer are described. The layer difference method and the cluster analysis method are used for the layering. This method is to divide and compare the small layer with the well logging curve and finally to realize the quantitative A more effective way of automation and automation According to a large amount of geological studies, the top and bottom boundaries of the sub-formations are considered to be the basis for automatic stratification. The selection of stratification parameters (B and dmin values) and some stratification techniques must be closely integrated with the reservoir Layer distribution characteristics, so as to achieve a more satisfactory results. According to the actual practice of river facies reservoirs in Xingbei area, the main oil reservoirs of Ⅰ ~ Ⅲ in Pu district are divided and compared. By comparing the results of automatic stratification and artificial stratification of 52 wells, it is found that the two have a high degree of coincidence, which greatly improves the efficiency of small stratification.