Optimization of high-temperature gas parameters and analysis of the impact of oil shale thickness on the in situ development process
PHYSICS OF FLUIDS(2024)
摘要
In situ shale oil extraction is an efficient and environmentally friendly development method. This article employs in situ extraction technology to heat shale oil, optimizing its high-temperature gas parameters based on indicators such as cumulative oil production rate and cumulative power consumption in the shale oil region. Using the optimized high-temperature gas parameters, an exploration of shale oil with different thicknesses was conducted. The results indicate that out of nine different high-temperature gas parameters, five cannot induce complete fracturing in the shale oil region. Models II, III, I, and IV each reach the onset of shale oil fracturing in the entire region after 870, 900, 1020, and 1080 days, respectively. The heating rate factor peaks at 1620, 1620, 1800, and 1980 days, with values of 0.277, 0.305, 0.317, and 0.32, respectively. Compared to Model II, the peak of the heating rate factor in Model I is the highest, showing an increase of 15.52%. Among these models, Model I has the lowest unit volume power consumption at 1063.41 kW/m(3). The unit volume power consumption in Model I exhibits the most significant reduction, with a maximum decrease of 16.45% compared to the other three shale oil models of different thicknesses. The research results provide a basis for the engineering development of shale oil.
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