【摘要】 通过对以细管实验结果为依据 ,结合新近提出的“混相函数”的概念 ,对利用状态方程求解最小混相压力的方法进行了研究与改进 ,克服了原方法中重组分临界值难以确定的缺点 ,同时提高了温度对计算结果的敏感性 .通过对 CO2 /原油体系最小混相压力的计算 ,充分证明了此方法的有效性更多还原

【Abstract】 The method for predicting minimum miscible pressure by equation of state is introduced. And by means of slim-tube test results and the concept of "miscible function", the method is improved. The improved method overcomes the shortcoming of the original method that the critical value of plus fraction is difficult to determine, and it also improves the sensitivity of the calculated minimum miscible pressure to temperature. The validity of the improved method is proven by the results of some examples.更多还原