西南石油大学学报(自然科学版) ›› 2001, Vol. 23 ›› Issue (2): 22-24.DOI: 10.3863/j.issn.1000-2634.2001.02.006
• 石油工程 • 上一篇 下一篇
王金勋1 李士伦2 刘玉慧1
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WANG Jin-xun1 LI Shi-lun2 LIU Yu-hui1
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摘要：
用延拓法、经典的Newton算法和Broyden算法分别计算了四个实际油气体系的露点(用PR方程),对同一体系的重馏分使用同样的临界参数,对比不同压力初值下这三种方法的迭代收敛情况。对同一体系同样的压力初值对比了改变重馏分的临界参数拟合实验露点时这三种算法的适应性。结果表明延拓法对初值要求低,是油藏流体相平衡计算的一种有效算法。
关键词: 延拓法, 相平衡, 露点, 状态方程, 重馏分, 临界参数
Abstract: Continuation ( orHomotopy) method was applied to calculate the dew-point pressures of four gas condensate systems under reservoir temperatures in comparing with Newton iterative method and Broyden method. The effects of initial iteration pressures on the convergence of dew-point pressures werestudied based on the results from the three different methods.The Peng and Robinson equation of state was used for all calculations. The results showed that continuation method is an efficient algorithm for the phase equilibrium calculations of reservoirfluids.
Key words: continuation, phase equilibrium, dew point, state equation, heavy component, critical parameter
中图分类号:
TE31
王金勋 李士伦 刘玉慧. 延拓法在油气相平衡计算中的应用 [J]. 西南石油大学学报(自然科学版), 2001, 23(2): 22-24.
WANG Jin-xun LI Shi-lun LIU Yu-hui. THE APPLICATION OF CONTINUATION ALGORITHM TO CALCULATION OF PHASE EQUILIBRIUM OF RESERVOIR FLUIDS[J]. 西南石油大学学报(自然科学版), 2001, 23(2): 22-24.
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http://journal15.magtechjournal.com/Jwk_xnzk/CN/Y2001/V23/I2/22
