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Numerical Simulation of Geostress and Pore Pressure Evolution around Oil or Water Well under Different Injection-Production Ratio

机译：不同注采比下油水井周围地应力和孔隙压力演化的数值模拟

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摘要

Geostress evolution in the process of oil field development can directly influence wellbore stability. Therefore, it is significant to strengthen the research of the evolution rule for well drilling and casing protection. Considering the interaction between reservoir seepage and stress fields, a mathematical model to characterize the stress evolution around wellbore was built. Using the FEM Software ABAQUS, through numerical simulation, the authors studied the evolution features of pore pressure and stress changes with time under different injection-production ratio, which disclosed the dynamic change regulation of pore pressure and stress of surrounding rock nearby the injection and production wells. These results may have implications in the treatment of wellbore stability and optimizing the injection and production processes during oil and gas production.
机译：油田开发过程中的地应力演化可直接影响井筒的稳定性。因此，加强对钻井和套管保护演化规律的研究具有重要意义。考虑到储层渗流与应力场之间的相互作用，建立了表征井筒周围应力演化特征的数学模型。利用有限元软件ABAQUS，通过数值模拟研究了不同注采比下孔隙压力和应力随时间的演化特征，揭示了注采附近孔隙压力和应力的动态变化规律。井。这些结果可能对井筒稳定性的处理以及在油气生产过程中优化注入和生产工艺有影响。

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  • 来源
    《Mathematical Problems in Engineering》 |2013年第3期|604748.1-604748.10|共10页
  • 作者

    Liu Jian-jun; Yu Xian-bin; Zhao Jin-zhou;

  • 作者单位

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu,Sichuan 610500, China,School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu, Sichuan 610500, China;

    School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu, Sichuan 610500, China;

    State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu,Sichuan 610500, China;

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