渤海湾盆地近源陡坡带砂砾岩体储层特征及分类评价——以渤海海域C油田东三段为例

Reservoir Characteristics and Classification Evaluation of Glutenite near Source Steep Slope Zone of Bohai Bay Basin——A Case Study of the E3d3 Member of C Oilfield in Bohai Sea Area

以渤海西部海域C油田巨厚层砂砾岩储层为研究对象,开展储层精细研究和评价分级。根据岩心资料、壁心资料、岩屑资料并结合薄片镜下鉴定结果综合判别砂砾岩储层岩石学特征、物性特征、储集空间特征、夹层特征。在上述研究的基础上,确定储层分类标准。纵向上,将东三段储层划分为四类储层,并落实到单井进行储层综合评价。研究可对巨厚砂砾岩储层精细描述及评价提供参考。

Based on the study of super thick sandy conglomerate reservoir in C oilfield in the west of Bohai Sea,this paper carries out fine research,evaluation and classification of reservoir.According to the observation of the core data and wall core data,combined with the identification results of thin section,the petrological characteristics,physical properties,spatial characteristics and interlayer characteristics of the reservoir are determined.On the basis of the above research,the classification standard of the reservoir is determined.The reservoir of the E3d3 member is divided into four types,and the reservoir comprehensive evaluation is conducted vertically for single well,and the comprehensive map of single well reservoir classification evaluation is drawn.The study can provide a reference for the fine description and evaluation of the very thick glutenite reservoir with similar geological conditions and data conditions in Bohai Sea area.