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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2014  >  36(1): 102-105
Guo Dianbin, Xu Huaimin. Laboratory experiments of CO2 flooding in deep-buried high-pressure low-permeability reservoirs：A case study of block Hu96 in Zhongyuan Oilfield[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2014, 36(1): 102-105. doi: 10.11781/sysydz201401102
Citation: Guo Dianbin, Xu Huaimin. Laboratory experiments of CO2 flooding in deep-buried high-pressure low-permeability reservoirs：A case study of block Hu96 in Zhongyuan Oilfield[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2014, 36(1): 102-105. doi: 10.11781/sysydz201401102
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Laboratory experiments of CO2 flooding in deep-buried high-pressure low-permeability reservoirs：A case study of block Hu96 in Zhongyuan Oilfield

doi: 10.11781/sysydz201401102
  • 1.

    College of Geosciences, China University of Petroleum, Beijing 102249, China

  • 2. Research Institute of Petroleum Exploration & Production, SINOPEC Zhongyuan Oilfield Company, Puyang, Henan 457001, China

  • Received Date: 2013-05-04
  • Rev Recd Date: 2013-12-02
  • Publish Date: 2014-01-28
    Abstract
  • Gas and liquid flows coexist in deep-buried high-pressure low-permeability reservoirs after natural depletion. Further studies are demanded due to the complicated characteristics of CO2 miscible flooding. The environment of deep-buried high-pressure low-permeability reservoir was simulated and the laboratory experiment of CO2 flooding was carried out using slim tube and long core. It has been concluded that after natural depletion, gas and liquid flows coexist in formation. The minimum miscible pressure (MMP) and the effect of CO2 flooding decline. But after restoring formation pressure, the effect of CO2 flooding increases, and achieves the similar result to that by continuous CO2 injecting under original formation pressure. The conclusion has been applied in CO2 flooding pilot test of deep-buried high-pressure low-permeability reservoirs in block Hu96 in the Zhongyuan Oilfield, providing technical support for the development of deep-buried high-pressure low-permeability reservoirs.

     

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