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Design of Oil Shale In-Situ Extraction Heater Structure and Numerical Simulation of the Fracturing Process

  • INNOVATIVE TECHNOLOGIES OF OIL AND GAS
  • Published:
Chemistry and Technology of Fuels and Oils Aims and scope

Downhole continuous spiral folded plate heaters that generate high temperature air to heat oil shale are an efficient method of in-situ oil shale extraction. In this paper, the physical model of downhole continuous spiral folded plate heater and the physical model of oil shale heating are established respectively, and Fluent software is used to numerically simulate the above physical model. The heat transfer characteristics, outlet temperature, and comprehensive performance of this heater under different mass flow rates and heating powers are studied, and the heater performance is analyzed by the above indexes. The heating parameters were used to heat the physical model of oil shale. The optimal working parameters were determined by heating time and cost, and the working parameters were used to heat the other four physical models of oil shale. The oil production rate, heating rate, and accumulated power consumption of oil shale were analyzed, and the results were analyzed. The results show that the continuous type spiral folded plate heater has the best performance with the operating parameters of 10 kW power and 0.01624 kg/s mass flow rate, and the model IV has the shortest heating time, the fastest oil yield, and the lowest cumulative power consumption.

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Acknowledgments

The authors gratefully acknowledge the financial support of the National Nature Science Foundation of China(No.52074018, No.52274001), the financial support of fundamental Research Funds for the Central Universities (buctrc202017).

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Authors and Affiliations

  1. College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, China

    Hao Liu, Tengfei Sun, Yang Zhang, Baokang Wu, Zhilei Wang & Yacong Fan

Authors
  1. Hao Liu
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  2. Tengfei Sun
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  3. Yang Zhang
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  4. Baokang Wu
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  5. Zhilei Wang
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Correspondence to Tengfei Sun.

Additional information

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 6, pp. 68–76 November – December, 2022.

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Liu, H., Sun, T., Zhang, Y. et al. Design of Oil Shale In-Situ Extraction Heater Structure and Numerical Simulation of the Fracturing Process. Chem Technol Fuels Oils 58, 990–1004 (2023). https://doi.org/10.1007/s10553-023-01481-0

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  • DOI: https://doi.org/10.1007/s10553-023-01481-0

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