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盆地数值模拟是含油气盆地定量化研究的重要手段.在盆地演化过程中各种场相互作用和影响,因此,在盆地模拟时要综合考虑多种场变量的耦合作用。建立了多插相互作用的耦合非线性数学模型,并通过有限元数值方法对莺歌海盆地进行了数值模拟。莺歌海盆地是一个高温高超压盆地,其温、压、流场具有强烈的非线性耦合关系。计算表明所建模型适合莺歌海盆地。
Basin numerical simulation is an important method for quantitative study of petroliferous basins.In the process of basin evolution, various fields interact and influence each other, so the coupling of multiple field variables should be considered comprehensively in basin simulation. A coupled non-linear mathematical model of multi-insertion interaction was established. The numerical simulation of Yinggehai Basin was carried out by finite element method. Yinggehai Basin is a hyperthermal overpressure basin with a strong nonlinear coupling of temperature, pressure and flow. The calculation shows that the model is suitable for Yinggehai Basin.