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三塘湖盆地牛圈湖区块中侏罗统西山窑组(J2x)油藏储层以低孔低渗和低孔特低渗为主,通过储层微观组成、岩石组分及孔隙结构等的分析研究,确定该油藏的储层控制因素主要受物源、沉积体系和沉积微相、砂岩粒级、压实作用以及高岭石含量的影响,其中压实作用是主要的减孔因素。通过对这些因素的分析,初步完成了好储层平面分布规律的预测,为油田有效开发部署提供了可靠的依据。
The reservoirs of the Middle Jurassic Xishanyao Formation (J2x) in the Niuhuanhu block, Santanghu Basin are dominated by low porosity and low permeability and low porosity and ultrahigh permeability, and are characterized by micro-composition of the reservoir, rock composition and pore structure Analysis and research to determine the reservoir control factors of this reservoir are mainly affected by provenance, sedimentary system and sedimentary microfacies, sandstone size, compaction and kaolinite content. Compaction is the main pore reduction factor. Through the analysis of these factors, the prediction of the plane distribution law of the reservoir has been preliminarily completed, which provides a reliable basis for the effective development and deployment of the oilfield.