成都理工大学学报（自然科学版）2017，Vol.44Issue(5)：535-542,8.DOI:10.3969/j.issn.1671-9727.2017.05.04
渤海湾盆地沾化凹陷沙河街组页岩油微观储集性
Study on microscopic reservoir characteristics of shale oil from Shahejie Formation in Zhanhua Sag, Bohai Bay Basin, China
摘要
Abstract
Pore development characteristics of different rocks and minerals in shale oil reservoir in Zhanhua Sag of Bohai Bay Basin are discussed and studied in order to provide basic data for exploration and development of shale oil.21 natural section and argon-ion polishing samples from Well Luo-69 for the Paleogene Shahejie Formation in Zhanhua Sag are selected,and the pore development types,pore size distributions and plane porosity contribution of different rocks and minerals of shale oil reservoir are quantitatively studied by field emission scanning electron microscope image analysis.It shows that the main pore types of shale oil in Shahejie Formation consist of argillaceous inter-particle pores in mudstone and calcite dissolved pores in micrite,and the micro-pores provide main reservoir space for shale oil.The amount of calcite inter-crystal pores,intra-crystal pores and pyrite inter-crystal pores are mainly in nanometer scale with very low pore plane porosity.It reveals that the main target of shale oil development in Zhanhua Sag is the developed intervals of micro-scale argillaceous inter-particle pores and calcite dissolved pores.关键词
沾化凹陷/沙河街组/页岩油/孔径/面孔率贡献Key words
Zhanhua Sag/Shahejie Formation/shale oil/pore size/plane porosity contribution分类
能源科技引用本文复制引用
田同辉,戚明辉,陆正元,冯明石,刘毅..渤海湾盆地沾化凹陷沙河街组页岩油微观储集性[J].成都理工大学学报（自然科学版）,2017,44(5):535-542,8.基金项目
国家重点基础研究发展计划(973)项目(2014CB239103) （973）
中国石化股份公司重点科技攻关课题(P13059). （P13059）
