关键词: 非凝析气, 稠油, 组分, 两相流, 蒸汽干度, 井筒, 动态分析

Abstract: Wellbore steam duality and temperature gradient models for multicomponents mixture gas have been built up coupled with viscosity of mixture gas. Beggs-Brill pressure gradient model has been used to compute the wellbore performance of two.phase flow. It has been shown that steam quality at tubing shoe can be increased with non-condensed gas as additives,and there is 5%~10% incemental of steam quality from the mixed injection with flue gas. Both bottom hole temperature and pressure have been reduced than that of steam injection only,and dispersion and slug flow patterns are the dominant ones.

Key words: non-condensed gas, heavy oil, components, two-phase flow, steam quality, wellbore, dynamic-analysis