摘要
通过研究不同开发时期的取芯井资料、生产井的动态和静态数据,及薄片、电子显微镜定性观察结果,阐明了高渗透孔道形成的环境与条件。总结出储层岩石胶结程度较弱、原油粘度较高及长期高强度的水驱是形成高渗透孔道的主要原因,其形成的关键地质条件是储层的非均质性;一般渗透率在100~10000mD,孔隙度介于25%~30%之间,非均质系数大于2,厚度大于3m的储层更容易形成高渗透孔道。
Through analyzing and studying the coring well data of different development periods,dynamic and static data of production wells,we have found that qualitative observation and analysis of thin slices and electron microscopes,including the environment and conditions for the formation of high-penetration pores are described.The main reasons for the formation of high-permeability tunnels should be summarized as the weak cementation of reservoir rock,high viscosity of crude oil and long-term high-intensity water drive.The key geological condition for formation is reservoir heterogeneity.General permeability of 100~10 000 mD,porosity between 25%~30%,the heterogeneity coefficient is greater than 2,the thickness of more than 3 m reservoir is more likely to form high permeability channels.
作者
于舒杰
刘云鑫
YU Shujie;LIU Yunxin(College of Geosciences,Northeast Petroleum University,Daqing,Heilongjiang 163318,China)
出处
《中国锰业》
2019年第3期27-30,共4页
China Manganese Industry
基金
黑龙江省自然科学基金(D2015010)
关键词
高渗透孔道
储层性质
非均质系数
水驱
High permeability pore
Reservoir properties
Heterogeneous coefficient
Water flooding
