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Application of Fuzzy Math Method to Reservoir Evaluation——Taking Chang 4+5 Reservior of Yanchang Formation in Baiyushan Area in Ordos Basin as an Example
Author(s): 
Pages: 156-160
Year: Issue:  2
Journal: JOURNAL OF EARCH SCIENCES AND ENVIRONMENT

Keyword:  鄂尔多斯盆地储层模糊数学逐步回归分析Q型聚类统计分类评价;
Abstract: 运用模糊数学综合评判法,确定储层评判对象因素集,通过对鄂尔多斯盆地白于山地区延长组长4+5储集层研究,认为孔隙度、渗透率、排驱压力、分选系数、孔喉均值是储层评判对象因素集.经过储层评判对象因素集逐步回归分析,建立Ⅰ~Ⅳ类储层分类评价标准,其中Ⅰ~Ⅲ类为有效储层,Ⅳ类为非储集层.最后用Q型聚类统计对储层分析,表明白于山地区长4+5储集层属于Ⅱ类,即中等储层.
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