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Investigation on the low temperature oxidation of light oil for safely enhancing oil recovery at high temperatures and pressures

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Listed:
  • Li, Pengliang
  • Liu, Zhenyi
  • Li, Mingzhi
  • Zhao, Yao
  • Li, Xuan
  • Wan, Song
  • Ma, Yuanyuan
  • He, Yanghua

Abstract

Air injection is an important method for tertiary oil recovery. Air with high temperature and pressure will affect the properties of crude oil. It will also affect the oxidation reaction between crude oil and oxygen. As a result, the liquidity of crude oil and safety of air injection process will be influenced. In this study, experiments on oil samples from Liaohe oilfield were carried out to investigate the effect of high temperature and pressure on the properties of crude oil. The viscosity and component change of crude oil were analysed. Besides, the change of gas components after reaction was also investigated. The results showed that the viscosity of crude oil increased with the increase of reaction time, which was caused by the increase of asphaltene in crude oil. The viscosity of crude oil also showed an upward trend with the increase of temperature and pressure. Interestingly, when the pressure reached 20 MPa, the viscosity of crude oil experienced a decrease. Besides, the oxygen concentration declined as the temperature rose up from 80 °C to 140 °C. Therefore, to ensure safety and better liquidity of crude oil, the temperature and pressure should be controlled in certain range during air injection.

Suggested Citation

  • Li, Pengliang & Liu, Zhenyi & Li, Mingzhi & Zhao, Yao & Li, Xuan & Wan, Song & Ma, Yuanyuan & He, Yanghua, 2020. "Investigation on the low temperature oxidation of light oil for safely enhancing oil recovery at high temperatures and pressures," Energy, Elsevier, vol. 200(C).
    • Handle: RePEc:eee:energy:v:200:y:2020:i:c:s0360544220306538
    DOI: 10.1016/j.energy.2020.117546
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    References listed on IDEAS

    as
    1. Li, Pengliang & Liu, Zhenyi & Li, Mingzhi & Zhao, Yao & Li, Xuan & Sun, Ruiyan, 2018. "Experimental study on the ignition time of electric heaters with thermal insulation structure," Energy, Elsevier, vol. 160(C), pages 855-862.
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    Cited by:

    1. Li, Pengliang & Liu, Zhenyi & Li, Mingzhi & Zhao, Yao & Qian, Xinming & Ren, Yuan, 2023. "Investigation on the reaction mechanism of methane combustion near flammability limits at elevated pressures and temperaturaes," Energy, Elsevier, vol. 269(C).
    2. Abdi-Khanghah, Mahdi & Jafari, Arezou & Ahmadi, Goodarz & Hemmati-Sarapardeh, Abdolhossein, 2023. "Synthesis of mono, bi, and trimetallic Sn–Ni–Cu based ionic micro-emulsion catalysts and optimization of catalytic performance in heavy oil upgrading," Energy, Elsevier, vol. 284(C).
    3. Huang, Lijuan & Wang, Yu & Li, Zongfa & Zhang, Liang & Yin, Yuchuan & Chen, Chao & Ren, Shaoran, 2021. "Experimental study on piloted ignition temperature and auto ignition temperature of heavy oils at high pressure," Energy, Elsevier, vol. 229(C).
    4. Qi, Chang & Ding, Jianfei & Wang, Yue & Ning, Ye & Wang, Yalei & Liang, He & Yan, Xingqing & Yu, Jianliang, 2023. "Investigation of the upper flammability limit of ethylene/propane mixtures in air at high temperatures and pressures," Energy, Elsevier, vol. 281(C).

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