河南双河油田核三段Ⅰ—Ⅲ油组储层特征研究

Study on Characteristics of He3Ⅰ—Ⅲ Reservoir in the Shuanghe Oilfield,Henan

通过研究区内大量铸体薄片及物性资料的分析,对双河油田核三段Ⅰ—Ⅲ油组储层的岩石学特征、孔隙结构及孔隙类型、储层物性特征进行研究。分析了影响储层储集性能的主要因素。研究表明,以扇三角洲前缘沉积为主的Ⅰ—Ⅲ油组储集层具有成分成熟度和结构成熟度均较低的特点。储层以粒间孔隙、溶蚀孔隙最为发育,属中孔中渗—高渗类型。储层物性主要受沉积相带的控制。

By analyzing the thin sections and physical property, the petrology characteristics, pore texture and pore types, physical property of the He3 I -- III reservoir in Shuanghe oilfield were studied, and the mainly controlling factor of reservoir ability was analyzed. The result indicates that the reservoir of He3 I --III deposited in fandelta frontier have low compositional maturity and low textural maturity. The intergranular pore and dissolved pore were developed in research formation. The reservoir are mediate porosity and mediate to high permeability. The reservoir physical property was mainly controlled by sedimentary facies.