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Study on Compatibility Evaluation of Multilayer Co-Production to Enhance Recovery of Water Flooding in Oil Reservoir

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  • Leng Tian

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
    Department of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    Research Center for Natural Gas Geology and Engineering, China University of Petroleum (Beijing), Beijing 102249, China)

  • Xiaolong Chai

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
    Department of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    Research Center for Natural Gas Geology and Engineering, China University of Petroleum (Beijing), Beijing 102249, China)

  • Lei Zhang

    (Tianjin Branch of CNOOC Ltd., Tianjin 300459, China)

  • Wenbo Zhang

    (CNOOC Research Institute Ltd. Liability Company, Beijing 100027, China)

  • Yuan Zhu

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
    Department of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    Research Center for Natural Gas Geology and Engineering, China University of Petroleum (Beijing), Beijing 102249, China)

  • Jiaxin Wang

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
    Department of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    Research Center for Natural Gas Geology and Engineering, China University of Petroleum (Beijing), Beijing 102249, China)

  • Jianguo Wang

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China
    Department of Petroleum Engineering, China University of Petroleum (Beijing), Beijing 102249, China
    Research Center for Natural Gas Geology and Engineering, China University of Petroleum (Beijing), Beijing 102249, China)

Abstract

Increasing oil production is crucial for multilayer co-production. When there are significant differences in the permeability of each layer, an interlayer contradiction arises that can impact the recovery efficiency. After a number of tests and the establishment of a mathematical model, the effects of permeability contrast on oil production for water flooding were revealed. In the meantime, the developed mathematical model was solved using the Buckley–Lever seepage equation. Ultimately, the accuracy of the established model was confirmed by comparing the simulated outcomes of the mathematical model with the experimental results. The findings indicate that when permeability contrast increases, the production ratio of the high-permeability layer will improve. This is primarily due to the low-permeability layer’s production contribution rate decreasing. The accuracy of the established model is ensured by an error of less than 5% between the results of the experiment and the simulation. When the permeability contrast is less than three, the low-permeability layer can be effectively used for three-layer commingled production. However, when the permeability contrast exceeds six, the production coefficient of the low-permeability layer will be less than 5%, which has a significant impact on the layer’s development.

Suggested Citation

  • Leng Tian & Xiaolong Chai & Lei Zhang & Wenbo Zhang & Yuan Zhu & Jiaxin Wang & Jianguo Wang, 2024. "Study on Compatibility Evaluation of Multilayer Co-Production to Enhance Recovery of Water Flooding in Oil Reservoir," Energies, MDPI, vol. 17(15), pages 1-13, July.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:15:p:3667-:d:1442743
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    References listed on IDEAS

    as
    1. Chai, Rukuan & Liu, Yuetian & Wang, Jingru & Liu, Qianjun & Rui, Zhenhua, 2022. "CO2 utilization and sequestration in Reservoir: Effects and mechanisms of CO2 electrochemical reduction," Applied Energy, Elsevier, vol. 323(C).
    2. Huiying Zhong & Yuanyuan He & Xin Zhao & Xiaojuan Peng, 2022. "Theoretical Study on the Micro-Flow Mechanism of Polymer Flooding in a Double Heterogeneous Oil Layer," Energies, MDPI, vol. 15(9), pages 1-12, April.
    3. Chai, Rukuan & Liu, Yuetian & Xue, Liang & Rui, Zhenhua & Zhao, Ruicheng & Wang, Jingru, 2022. "Formation damage of sandstone geothermal reservoirs: During decreased salinity water injection," Applied Energy, Elsevier, vol. 322(C).
    4. Liang Sun & Baozhu Li & Hanqiao Jiang & Yong Li & Yuwei Jiao, 2019. "An Injectivity Evaluation Model of Polymer Flooding in Offshore Multilayer Reservoir," Energies, MDPI, vol. 12(8), pages 1-21, April.
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