Specialist Forum

Further discussion on reservoir engineering concept and development mode of CO2 flooding-EOR technology

  • Shilun LI ,
  • Lei SUN ,
  • Zuhua CHEN ,
  • Jian LI ,
  • Yong TANG ,
  • Yi PAN
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  • 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
    2. Sinopec East China Company, Nanjing, Jiangsu 210000, China;
    3. University of Calgary, Calgary, Alberta T2N 1N4, Canada

Received date: 2020-06-01

  Online published: 2020-07-03

Abstract

Since the 1970s, CO2 flooding-EOR technology has formed multiple development modes in the concept of reservoir engineering, including continuous CO2 injection, WAG injection with constant proportion, tapered/hybrid WAG injection and SWG/SSWG injection. The reason why CO2 become the injection gas for tertiary oil recovery with great vitality benefits from its supercritical fluid characteristics and remarkable solvation capacity. Based on the analysis of the main oil displacement mechanism of CO2 and the reservoir engineering concept and development mode of typical CO2 flooding-EOR technology at home and abroad in recent years, and considering their development characteristics of different types of reservoirs, especially the successful application of horizontal well technology and low permeability reservoir volume fracturing technology, as well as the comprehensive utilization concept of CO2 CCUS-EOR combined with CCUS concept, further suggestions are put forward for the development of reservoir engineering development mode by CO2 flooding-EOR technology in China, so as to provide enlightenment for further promoting its large-scale development.

Cite this article

Shilun LI , Lei SUN , Zuhua CHEN , Jian LI , Yong TANG , Yi PAN . Further discussion on reservoir engineering concept and development mode of CO2 flooding-EOR technology[J]. Petroleum Reservoir Evaluation and Development, 2020 , 10(3) : 1 -14 . DOI: 10.13809/j.cnki.cn32-1825/te.2020.03.001

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