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以石油运移通道几何形状比较规则、渗透率分布比较均匀而且运移通道被水饱和为假设条件,建立了石油运移解析模型,用于在不同运移通道性质条件下,评价运移速度、运移量、运移距离随时间的变化关系。分析计算结果发现,在运移过程中,石油的黏度越大,运移量越小、运移距离越短、运移速度越慢,而且速度的递减也越快;压差越大,石油运移的距离越长、运移量越大,同时运移速度也越快,速度递减缓慢。
Taking the geometry of petroleum migration channel as a rule, the permeability distribution is more uniform and the transport channel is saturated with water as the assumptions, an oil migration analysis model is established to evaluate the migration velocity under different transport channel properties, The amount of migration, migration distance changes with time. The results of the analysis show that during the migration process, the larger the viscosity of oil, the smaller the amount of migration, the shorter the migration distance, the slower the migration speed and the faster the decrease of velocity. The larger the pressure difference, The longer the distance, the larger the amount of migration, the faster the migration speed and the slower the rate of decline.