石油地质与工程2025，Vol.39Issue(3)：1-7,7.
砂砾岩储层孔隙结构评价及储层分类方法
Evaluation of pore structure and classification method of glutenite reservoirs:a case study of the Triassic Baikouquan Formation in the Mabei Slope Zone
摘要
Abstract
Mahu area is one of the hotspots in oil and gas exploration in recent years.However,due to the complex lithology and strong heterogeneity,it has brought great difficulties to oil and gas exploration.Through the analysis of reservoir characteristics and the fine evaluation of reservoir pore structure of the Baikouquan Formation of the Triassic System in the Mabei slope Zone,a quantitative classification scheme for glutenite reservoirs in the area has been established.The results indicate that the main reservoir rocks in this area are glutenite,gravel bearing sandstone,and sandstone.The reservoir spaces are mainly primary intergranular,intergranular dissolved and intragranular dissolved pores,with a small amount of microfrac-tures developed.The pore structure can be divided into four types:large pore-coarse throat,medium pore-medium throat,small pore-fine throat and micro-fine pore-micro-fine throat types.The forma-tion is controlled by the comprehensive influence of sedimentary facies zones,tectonic activities and diagen-esis.The reservoirs can be further divided into four categories.Among them,the productivity of Class Ⅰ,Ⅱ and Ⅲ reservoirs is relatively good,which are effective reservoirs,while Class Ⅳ is a non-reservoir.The research results provide a good guidance for the evaluation of glutenite reservoirs in the area,and can also support for the next exploration deployment and productivity evaluation.关键词
玛北斜坡带/油气勘探/砂砾岩/孔隙结构/储层评价Key words
Mabei slope belt/oil and gas exploration/glutenite/pore structure/reservoir evaluation分类
石油、天然气工程引用本文复制引用
李洪楠,王欣桐,李子敬..砂砾岩储层孔隙结构评价及储层分类方法[J].石油地质与工程,2025,39(3):1-7,7.基金项目
国家科技重大专项(2016ZX05006-005) （2016ZX05006-005）
中国石油天然气股份有限公司重大科技专项(2017E-16). （2017E-16）
