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基于低渗透储层评价和油藏开发经验,从低渗储层孔隙结构和渗流能力方面出发,引进主流喉道半径、可动流体百分数、启动压力梯度、黏土含量和原油黏度作为评价参数,建立了姬塬油田延长组长8段储层评价体系,采用模糊数学理论分析方法,对研究区储层进行综合分类评价,并研究了储层的平面分布特征。
Based on the evaluation of low-permeability reservoirs and reservoir development experience, based on the pore structure and seepage capacity of low-permeability reservoirs, the main throat radius, percentage of movable fluid, start-up pressure gradient, clay content and crude oil viscosity were introduced as evaluation parameters to establish This paper evaluates the reservoir evaluation system of Chang 8 member of Yanchang Formation in Jiyuan Oilfield. The fuzzy mathematics theory analysis method is used to comprehensively evaluate the reservoirs in the study area and study the plane distribution characteristics of the reservoir.