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Improved Oil Recovery from Carbonate Reservoirs by Tuning Injection Seawater Composition

Author

Listed:
  • Jiazhong Wu

    (State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development of Petro China, Beijing 100083, China)

  • Fanghui Liu

    (SINOPEC Research Institute of Petroleum Engineering Co., Ltd., Beijing 102206, China)

  • Siyu Yang

    (State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development of Petro China, Beijing 100083, China)

  • Haishui Han

    (State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development of Petro China, Beijing 100083, China)

  • Xinglong Chen

    (State Key Laboratory of Enhanced Oil Recovery, Research Institute of Petroleum Exploration and Development of Petro China, Beijing 100083, China)

  • Hui Yang

    (CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China)

Abstract

In order to improve the adaptability of low-salinity waterflooding technology in some areas where freshwater resources are scarce, we aimed at implementing the low-salinity effect (LSE) in carbonate reservoirs through tuning injection seawater composition. LSE of ion tuning water (ITW) was verified by the results of core flooding tests, obtaining a water-free recovery factor of 50.7% and cumulative oil recovery of 77.2%. The micro mechanisms behind it were revealed via direct force-measuring and Zeta parameter ( Zeta p ) measuring. Our results are expected to provide a new LSW strategy via tuning injection seawater composition in the case of carbonate reservoirs.

Suggested Citation

  • Jiazhong Wu & Fanghui Liu & Siyu Yang & Haishui Han & Xinglong Chen & Hui Yang, 2022. "Improved Oil Recovery from Carbonate Reservoirs by Tuning Injection Seawater Composition," Energies, MDPI, vol. 15(17), pages 1-11, September.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6405-:d:904547
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    References listed on IDEAS

    as
    1. Kholood Al-Nofli & Peyman Pourafshary & Nader Mosavat & Ali Shafiei, 2018. "Effect of Initial Wettability on Performance of Smart Water Flooding in Carbonate Reservoirs—An Experimental Investigation with IOR Implications," Energies, MDPI, vol. 11(6), pages 1-19, May.
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