摘要
本文对油气体系相图计算中的迭代求解算法和 C_7^+组分处理进行了研究,提出用外推初值的方法改善逐步取代法的收敛性,使之能用于包括临界点在内的相图计算,并用拟合C_7^+组分临界参数的方法,计算实际油气体系的气液平衡。文中列有计算框图及对数种相图的计算结果。
The iterative solving process and the treatment of C_7^+ component for calculating oil-gas sy- stem phase diagram are studied in this paper.It is proposed to improve the convergence of step-by-step substitution method by using the extrapolation of primary value for calculating the phase diagram included the critical point.The gas-liquid equilibrium of the real oil-gas system is estimated by matching the critical parameter of C_7^+ component.The flowchart and the calculating results of several phase diagrams are presented in this paper.
出处
《天然气工业》
EI
CAS
1986年第4期30-36,7,共8页
Natural Gas Industry
