Abstract
The heat injection well or subsurface heater temperature plays an important role during the in situ conversion process (ICP) of oil shale formation because of the strong temperature dependency of pyrolysis of solid kerogen into fluid. The oil and gas generation and production are greatly affected by heater well spacing too. In this paper, a reservoir simulation model of oil shale ICP was generated which incorporated all the complicated processes of heat dissipation through oil shale’s porous medium, the transportation of heat through the fluid, temperature-dependent chemical reactions, oil and gas generation through solid kerogen and production of these oil and gas, was generated. The outcomes of the simulation model were further used to explore the relationship between cumulative hydrocarbon production time and heater wells spacing. The results showed that the generation of hydrocarbon fluid through solid-phase kerogen is strongly temperature-dependent process. As a result, with the decrease in heating temperature or increase in heater well spacing, the oil rate peak noteworthy decreases and the production time is delayed. Additionally, both of lowering down the heating temperature or increasing the heater well spacing also affect (reduce) the cumulative hydrocarbon production. But the ultimate hydrocarbon recovery is expected to be equal if the simulations are performed over a very long time period. This work introduced a set of detailed simulation studies to examine the scenarios or conditions that may be responsible for different production times as a function of heater wells spacing during the oil shale ICP. The results revealed that the ICP is a strong heater wells spacing dependent process.
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References
Fan, H. J., Zafar, A., et al. (2017). Analyses of nature of fault through production data. Open Journal of Yangtze Gas and Oil, 2, 176–190. https://doi.org/10.4236/ojogas.2017.23014
Rassas, A. A., Ren, S., Sun, R., Zafar, A., Moharam, S., Guan, Z., Ahmed, A., & Alomaisi, M. (2020). Application of 3D reservoir geological model on Es1 formation, block Nv32, Shenvsi Oilfield, China. Open Journal of Yangtze Gas and Oil, 5, 54–72. https://doi.org/10.4236/ojogas.2020.52006
Zafar, A., & Fan, H. J. (2017). Combination of geological, geophysical and reservoir engineering analyses in field development: a case study. International Journal of Environmental, Chemical, Ecological, Geological and Geophysical Engineering, 11, 36–43.
Zafar, A., et al. (2019a). The numerical simulation and wellbore modeling of steam injection and stored heat recovery from light oil reservoir. Energy Sources, Part a: Recovery, Utilization, and Environmental Effects. https://doi.org/10.1080/15567036.2019.1676331
Zafar, A., et al. (2019b). The numerical simulation of effects of porosity, permeability and fluid saturation on heat dissipation in an oil reservoir. In 2nd International Conference of Arabian Journal of Geosciences, Tunisia, November 25–28, 2019.
Zafar, A., et al. (2020a). Tight Gas Production Model Considering TPG as a Function of Pore Pressure, Permeability and Water Saturation. Petroleum Science.
Zafar, A., et al. (2020b). Heat dissipation modeling of in-situ conversion of oil shale. Open Journal of Yangtze Gas and Oil, 5, 46–53. https://doi.org/10.4236/ojogas.2020.52005
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Zafar, A., Su, Y., Wang, W., Alrassas, A. (2024). A New Correlation Between Cumulative Hydrocarbon Production Time and Heater Spacing of in Situ Conversion Process of Oil Shale. In: Khomsi, S., et al. Selected Studies in Geophysics, Tectonics and Petroleum Geosciences. CAJG 2020. Advances in Science, Technology & Innovation. Springer, Cham. https://doi.org/10.1007/978-3-031-43807-3_37
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DOI: https://doi.org/10.1007/978-3-031-43807-3_37
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