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研究用分形描述油藏的非均质性,并与渗流力学相结合,建立了非均质油藏的基本产能方程。导出了不同形态的油相相对渗透率曲线下水驱分形非均质油藏产量变化规律的方程式,并结合分形地质统计学进行了应用研究。结果表明:本方法因考虑了油藏非均质效应,使预测结果更为合理可靠。
The fractal theory is used to describe the reservoir heterogeneity, and combined with seepage mechanics, the basic capacity equation of heterogeneous reservoirs is established. The equation of variation of output of fractured heterogeneous oil-water fractured reservoir under different relative permeability curves of oil phase is derived and applied to the study based on fractal geostatistics. The results show that the proposed method is more reasonable and reliable because of considering the reservoir heterogeneity.