(CN108005634) The invention provides an oil and gas reservoir physical model and a wettability global quantitative simulation method thereof. The oil and gas reservoir physical model includes an oil wetting physical model and/or a water wetting physical model. The preparation method includes: evenly mixing model sand, an oil wetting regulating agent or a water wetting regulating agent, and a cementing agent, and performing after-treatment, and acquiring an experiment oil and gas reservoir physical model; an wetting contact angle of the oil wetting regulating agent is greater than 160 DEG C, and the heat resistance temperature of the oil wetting regulating agent is at least 200 DEG C; and a wetting contact angle of the water wetting regulating agent is less than 20 DEG C, and the heat resistance temperature of the water wetting regulating agent is at least 200 DEG C. The method can achieve quantitative controllability of the wettability of the experiment reservoir model in a full range from high lipophilicity to high hydrophily; the wettability of the reservoir model is constant in a whole experimental process; and the method can provide a basis for evaluation of influence of the oil reservoir wettability on seepage and oil displacement.
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