论文部分内容阅读
运用灰色系统理论对南泥湾岳屯区储层进行定量评价。主要流程为:首先采用谱系聚类分析方法,选择相对独立的评价参数,从6个参数中选择5个用于储层综合评价,分别是:砂岩厚度、泥质含量、孔隙度、渗透率、沉积微相。并用灰色系统理论关联分析法,确定各参数的权系数。在计算储层综合评价指标值的基础上,采用拐点法确定储层综合评价的分类阈值,实现了对鄂尔多斯盆地南泥湾岳屯区长4+5、长6油层组储层的综合定量评价,取得较好效果。
Applying Gray System Theory to Quantitatively Evaluate the Reservoir of Yue Tun District in Nanniwan Bay. The main process is as follows: First, using the pedigree clustering analysis method, select relatively independent evaluation parameters and choose 5 of 6 parameters for reservoir comprehensive evaluation, which are sandstone thickness, shale content, porosity, permeability, Sedimentary microfacies. And gray system theory associated analysis, to determine the weight coefficient of each parameter. Based on the calculation of reservoir comprehensive evaluation index value, the classification threshold of reservoir comprehensive evaluation is determined by the inflection point method, and the comprehensive quantitative evaluation of reservoirs of Chang 4 + 5 and Chang 6 reservoirs in Yutun District, Nanniwan Bay, Ordos Basin, is achieved , Achieved better results.