石油学报 ›› 1999, Vol. 20 ›› Issue (5): 39-42.DOI: 10.7623/syxb199905008

• 油田开发 • 上一篇    下一篇

油藏非均质性的定量描述方法

赵春森, 翟云芳, 张大为   

  1. 大庆石油学院
  • 收稿日期:1998-01-04 修回日期:1999-04-19 出版日期:1999-09-25 发布日期:2010-05-21
  • 作者简介:赵春森,男,1964年8月生.1987年毕业于华东石油学院,现任大庆石油学院石油工程系讲师,在读博士.通讯处:黑龙江省安达市.邮政编码:1514000

A method to describe reservoir heterogeneity

Zhao Chunsen   

  1. Daqing Petroleum Institute
  • Received:1998-01-04 Revised:1999-04-19 Online:1999-09-25 Published:2010-05-21

摘要: 油藏非均质性的定量描述方法在油田开发,特别是在三次采油中起着至关重要的作用.仅仅通过对静态资料如测井、取心和地震资料的解释而建立的地质模型不能很好地说明流体在多孔介质的渗流特征.在前人研究的基础上,从油藏的实际情况出发,如油藏由多个小层构成,每个小层的有效厚度、流体饱和度分布不同的特点,将脉冲试井与数值模拟理论有机地结合在一起,通过模拟脉冲试井过程,将计算结果与实测的脉冲反应曲线做对比,修正初始的地质模型,最终可获得油藏各小层的渗透率非均质分布图.这种动态资料与静态描述相结合的油藏描述方法可为聚合物采油技术的开展提供可靠的地质模型.以大庆油田单层注聚合物试验区为例,说明了这种方法在油田开发中的应用.

关键词: 油藏描述, 脉冲试井, 地质模型, 数值模拟, 非均质性, 定量描述

Abstract: Quantitative reservoir description is essential to reservoir revelopment, especially for an EOR project.Only using static information such as logging and core to build up a reservoir model can't reflect the flow characteristic of fluid in a porous medium efficiently.As everyone knows,methods of pulse test and numerical simulation have played an important role in reservoir behavior analysis.In this paper,the two methods are combined to determine the permeability distributions of each layer in a heterogeneous reservoir by matching the interference tests and supposing that the reservoir consists of many layers which with different effective thickness,permeability and fluid saturation distributions.The polymer flooding pilot in Daqing showed the practical application and satisfactory results.

Key words: reservoir description, pulse test, geologic model, numerical simulation, heterogeneity, quantitative description