鄂尔多斯盆地马岭地区长8储层微观特征分析

Analysis of the Microscopic Characteristics of Chang 8 Reservoir in Maling Area,Ordos Basin

本文从储层的岩性特征、孔隙类型与结构及成岩作用对储层致密化的影响等方面,研究鄂尔多斯盆地马岭地区南部长8储层的微观孔隙特征,为今后研究工作提供更多的理论依据。研究结果表明,目的区接近物源,砂岩为该地区的主要岩石组分,储层孔隙以Ⅲ类孔隙为主。该目的区成岩作用对于孔隙结构的影响各有利害,其对储层致密化的影响起着决定作用。

From the aspects of reservoir lithology,pore type and structure,and the influence of diagenesis on reservoir densification,this paper studies the microscopic pore characteristics of the Chang 8 reservoir in the southern Maling area,Ordos Basin,in order to provide more theoretical basis for future research work.The research results show that the target area is close to the provenance,sandstone is the main rock component in this area,and the reservoir pores are mainly type III pores.Diagenesis in this target area has various advantages and disadvantages for the influence of pore structure,and its influence on reservoir densification plays a decisive role.