浅析东濮凹陷浅层砂岩储层的成岩特征

浅层油气藏具有低勘探成本投入、高开发收益回报优势,东濮浅层探明石油地质储量仅为3.9%,具有较大的勘探潜力。应用扫描电镜和铸体薄片技术,对东濮凹陷浅层储层进行了研究。首先通过对原始资料的综合整理分析,确定出本区的成岩演化阶段;然后通过具体观察成岩现象,总结出本区主要的成岩作用类型;在此基础上,阐述了研究区砂岩各阶段的成岩特点,探讨了成岩作用对砂岩储层孔隙结构的影响。

Analysis on the Diagenesis Characteristics of Shallow Sandstone Reservoir in Dongpu Depression

Shallow oil and gas reservoirs have the superiorities of lower exploration cost input and higher return on return on development investment. The proved OOIP in in Dongpu Depression is only 3.9% and has greater potential on exploration. This paper researches the shallow reservoir in Dongpu Depression by using the technique of scanning electron microscope and casting thin sections,at first,through sorting and analyzing comprehensively the original data,determines the diagenetic evolution stages,and through concrete observation of diagenetic phenomenon,sum up the main types of the diagenesis in this area,and based on this,expounds the characteristics of the diagenesis of the sandstone in the research area,and probes into the influence of the diagenesis on the pore structure of sandstone reservoir.