齐40块稠油热采汽驱优势通道评价参数及权重分析

Study on Evaluation Parameters and Their Weights of Dominant Channels for Heavy Oil Steam Flooding in Block Qi 40

通过多项地质参数与开发效果的对比分析,选取渗透率、沉积微相、变异系数、砂层厚度和夹层频率作为汽驱优势通道的评价参数。以开发动态资料分析为基础,提取汽驱优势通道砂层的样本参数,应用灰色关联分析法计算各参数权重。评价参数及其权重的确定为汽驱优势通道的识别、评价,进而制定稠油蒸汽驱开发方案奠定了基础。

Through comparing a number of geological parameters and development effect,porosity,sedimentary microfacies,variation coefficient,reservoir thickness and interlayer frequency were selected as evaluation parameters of dominant channels for steam flooding.Based on the analysis of dynamic data,sample parameters of sand layers of dominant channels are extracted,and Grey relativity analysis method is applied to calculate the weight of each parameter.The determination of evaluation parameters and their weight provides the foundation for the recognition and evaluation of dominant channels for steam flooding and draw up the plan for heavy oil steam flooding.