【摘要】 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。更多还原

【Abstract】 This paper studies the object factor sets of reservoir evaluation in Baiyushan area through comprehensive evalution by the method of fuzzy mathematics.Firstly,the porosity,permeability,displacement pressure, sorting coefficient,pore throat are ascertained to be the object factor sets,and the judgement classificatory standard for evaluation of types Ⅰ~ Ⅳ is set up by progressive regression analysis,among which,the reservoir types Ⅰ~Ⅲ are effective reservoirs,and there is no reservoir in type Ⅳ.Then,the reservoir is analyzed overall by Q-model gathering statistics.The result shows that the sandstone belongs to type Ⅱ,that is,medium reservoir.更多还原