西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (2): 180-184.

• 博导论评 • 上一篇    

任11 碳酸盐岩油藏注CO2 提高采收率研究

郭平,周耐强,张茂林,张晓辉   

  1. “油气藏地质及开发工程”国家重点实验室 西南石油大学,四川成都610500
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2012-04-01 发布日期:2012-04-01

Study on EOR by carbon Dioxide Injection Process in R11Carbonate Reservoir

Guo Ping, Zhou Naiqiang, Zhang Maolin, Zhang Xiaohui   

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu,Sichuan 610500,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-04-01 Published:2012-04-01

摘要: 许多碳酸盐岩油藏进入高含水开发期,如何挖潜,进一步提高采收率是目前的主要工作方向。目前任11 碳酸
盐岩油藏存在单井产油量低,注入水利用系数低,水驱效率越来越差的问题。因此需要探索新途径,以便进一步发挥
油藏生产潜力。分析了任11 油藏注CO2 提高采收率的机理,开展了任11 油藏注CO2 提高采收率的数值模拟研究。
针对研究区块的地质及开发特点,建立了相应的三维数值模型,在水驱历史拟合的基础上,应用数值模拟技术从注气
强度、注气方式、注气部位,生产气油比控制等方面进行了优化研究。油藏注CO2 方案模拟计算20 年,产油量显著上
升,采用注CO2 可比目前开发方式提高采收率3.5% 左右。

关键词: 注二氧化碳, 碳酸盐岩油藏, 油藏数值模拟, 提高采收率

Abstract: Many carbonate reservoir have been into high water-cut development stage. How to dig the remaining oil potential
and enhancing oil recovery further is dominant work target now. There are many problems in carbonate reservoir of R11,
such as low oil production of single well,inefficient utilization of injected water,and worsening of the water-flood efficiency.
Therefore it is necessary to find a new way to dig reservoir production potential. The EOR mechanism by Carbon dioxide
injection process in R11 is analyzed and the numerical simulation research on EOR by Carbon dioxide injection process in R11
reservoir is completed. Aimed at reservoir properties and development characteristic the three-dimensional numerical model is
set up. Based on the fitting history of water flooding,the gas injection rate,gas injection mode,gas injection position and the
gas-oil ratio control are optimized. The plan of Carbon dioxide injection is predicted for 20 years and the result shows that oil
production rise obviously and it can enhance oil recovery about 3.5% more than the current exploitation mode.

Key words: Carbon dioxide injection, carbonate reservoir, reservoir numerical simulation, EOR

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