摘要
储层非均质性对油田开发效果有较大的影响,因为储层纵向的非均质性影响储层内部的体积波及系数和驱油效率.储层渗透率韵律类型不同,其注水开发效果差异很大.运用渗透率级差和渗透率变异系数,论述了枣南油田孔一、二段不同沉积环境下的储层渗透率韵律类型.将其划分为七种模式,而每一种模式又分为中渗、低渗和特低渗三种亚模式,讨论了它们与沉积环境间的相互关系.同时还提出了几点增产措施,为提高油田开发效果提供地质依据.
The heterogeneity of a reservoir has a great effect on oil recovery byflooding. The vertical heterogeneity affects both volumetric sweep-efficiency and displacement effectiveness. In this paper, by the use of two parameters-permeability step difference and pereability variation coefficient. The rhythmic types of reservoir permeability of kong 1,2 sections in ZaoNan oil field in different sedimentary environment are studied. The reservoirs are divided into seven rhythmic models with regard to permeability. The relationship of permeabity rhythmo and sedimentary. enviroment is discussed, and some measures for increasing productions are recommended.
出处
《石油大学学报（自然科学版）》
CSCD
1992年第6期9-14,共6页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
储集层
非均质储集层
渗透率
韵律
Reservoir
Heterogeneily
Permeability step-difference
Permeability rhyme: Permeability variable-coefficient
