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Heat recovery optimization in a steam-assisted gravity drainage (SAGD) plant

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  • Ashrafi, Omid
  • Navarri, Philippe
  • Hughes, Robin
  • Lu, Dennis

Abstract

Pinch Analysis was used to improve the energy performance of a typical steam-assisted gravity drainage (SAGD) process. The objective of this work was to reduce the amount of natural gas used for steam generation in the plant and the associated greenhouse gas emissions. The INTEGRATION software was used to analyze how heat is being used in the existing design and identify inefficient heat exchanges causing excessive use of energy. Several modifications to improve the base case heat exchanger network (HEN) were identified. The proposed retrofit projects reduced the process heating demands by improving the existing heat recovery system and by recovering waste heat and decreased natural gas consumption in the steam production unit by approximately 40 MW, representing approximately 8% of total consumption. As a result, the amount of glycol used to transfer energy across the facility was also reduced, as well as the electricity consumption related to glycol pumping. It was shown that the proposed heat recovery projects reduced natural gas costs by C$3.8 million/y and greenhouse gas emissions by 61,700 t/y of CO2.

Suggested Citation

  • Ashrafi, Omid & Navarri, Philippe & Hughes, Robin & Lu, Dennis, 2016. "Heat recovery optimization in a steam-assisted gravity drainage (SAGD) plant," Energy, Elsevier, vol. 111(C), pages 981-990.
    • Handle: RePEc:eee:energy:v:111:y:2016:i:c:p:981-990
    DOI: 10.1016/j.energy.2016.06.006
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    References listed on IDEAS

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    1. Giacchetta, Giancarlo & Leporini, Mariella & Marchetti, Barbara, 2015. "Economic and environmental analysis of a Steam Assisted Gravity Drainage (SAGD) facility for oil recovery from Canadian oil sands," Applied Energy, Elsevier, vol. 142(C), pages 1-9.
    2. Ashrafi, Omid & Bédard, Serge & Bakhtiari, Bahador & Poulin, Bruno, 2015. "Heat recovery and heat pumping opportunities in a slaughterhouse," Energy, Elsevier, vol. 89(C), pages 1-13.
    3. Du, S. & Wang, R.Z. & Xia, Z.Z., 2014. "Optimal ammonia water absorption refrigeration cycle with maximum internal heat recovery derived from pinch technology," Energy, Elsevier, vol. 68(C), pages 862-869.
    4. Gadalla, Mamdouh A., 2015. "A new graphical method for Pinch Analysis applications: Heat exchanger network retrofit and energy integration," Energy, Elsevier, vol. 81(C), pages 159-174.
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    Cited by:

    1. Ashrafi, Omid & Bashiri, Hamed & Esmaeili, Amin & Sapoundjiev, Hristo & Navarri, Philippe, 2018. "Ejector integration for the cost effective design of the Selexol™ process," Energy, Elsevier, vol. 162(C), pages 380-392.
    2. Li, Weicheng & Vaziri, Vahid & Aphale, Sumeet S. & Dong, Shimin & Wiercigroch, Marian, 2021. "Energy saving by reducing motor rating of sucker-rod pump systems," Energy, Elsevier, vol. 228(C).
    3. Pang, Zhan-xi & Wu, Zheng-bin & Zhao, Meng, 2017. "A novel method to calculate consumption of non-condensate gas during steam assistant gravity drainage in heavy oil reservoirs," Energy, Elsevier, vol. 130(C), pages 76-85.
    4. Cheng, Linsong & Liu, Hao & Huang, Shijun & Wu, Keliu & Chen, Xiao & Wang, Daigang & Xiong, Hao, 2018. "Environmental and economic benefits of Solvent-Assisted Steam-Gravity Drainage for bitumen through horizontal well: A comprehensive modeling analysis," Energy, Elsevier, vol. 164(C), pages 418-431.
    5. Soiket, Md.I.H. & Oni, A.O. & Kumar, A., 2019. "The development of a process simulation model for energy consumption and greenhouse gas emissions of a vapor solvent-based oil sands extraction and recovery process," Energy, Elsevier, vol. 173(C), pages 799-808.
    6. Liu, Hao & Cheng, Linsong & Wu, Keliu & Huang, Shijun & Maini, Brij B., 2018. "Assessment of energy efficiency and solvent retention inside steam chamber of steam- and solvent-assisted gravity drainage process," Applied Energy, Elsevier, vol. 226(C), pages 287-299.
    7. Wang, Hai & Wang, Haiying & Zhu, Tong & Deng, Wanli, 2017. "A novel model for steam transportation considering drainage loss in pipeline networks," Applied Energy, Elsevier, vol. 188(C), pages 178-189.

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