碎屑岩储层流动单元的层次结构

Hierarchy Structure of Flow Unit of Clastic Rock Reservoir

张　吉¹,颜其彬¹,张烈辉¹,杨辉廷¹,李轩波²

Zhang Ji, Yan Qibin, Zhang Liehui, et al

1. 西南石油学院,2.四川石油管理局地调处

Southwest Petroleum Institute , Sichuan 610500 , P. R. China

针对目前流动单元的划分与识别是储层研究的一个热点和难点,以层次思想为指导,以储层非均质具有层次性为理论基础,较详细地论述了碎屑岩储层流动单元的层次结构。根据实际生产情况,将其分为砂层组、单砂层、韵律段与均质段共3 个层次,并指出各个层次结构流动单元的特征、研究方法及研究成果,而且还明确指出流动单元层次结构的上限与上限,指出流动单元的层次结构对精细研究岩石物理、流体运动变化规律及剩余油分布具有重要指导意义。

The paper elaborates the hierarchy of flow unit of clastic rock reservoir based on the theory of reservoir heterogeneity with hierarchy and guided by the hierarchy idea . According to actual production , flow unit can be divided to 3 scales ; sand group , single sand , rhythmic field and homogeneous field . The paper presents not only characteristic , studying data . studying methods and results in different scales , but also superior limit and inferior limit of hierarchy structure of flow unit . At last , the paper points out that to know hierarchy structure of flow unit plays a significant role in researching on petrophysical features , changeable rule of flow movement and remaining oil distribution.