特种油气藏2012，Vol.19Issue(5)：103-106,4.DOI:10.3969/j.issn.1006-6535.2012.05.026
凝析气井水合物生成变化规律研究
Study on the Variation Law of Hydrate Generation in Condensate Gas Well
摘要
Abstract
The paper presents a calculation method of hydrate formation conditions and the numerical model is programmed with C language by considering constant temperature flash model and constant volume depletion based on the models of the distribution of temperature and pressure along wellbore and the formation of hydrate. The paper takes Well X of Yakela condensate gas reservoir for an example and the variation law of hydrate formation of a condensate gas well under the conditions of the time and different times respectively is analyzed. The study shows that phase state alternation must be considered when hydrate formation conditions are calculated for a condensate gas well; the temperature curves are different under different depletion pressures along wellbore; the temperature at which hydrate forms increases with the increase in depth under a given formation pressure; the temperature at which hydrate forms decreases with the decrease in formation pressure under a given formation pressure at any position along wellbore.关键词
凝析气井/水合物/定容衰竭/等温闪蒸/相态变化/数值模拟Key words
condensate gas well/hydrate/constant volume depletion/constant temperature flash/phase state alternation/numerical simulation分类
能源科技引用本文复制引用
张海波,刘建仪,李丽,唐娟,潘春..凝析气井水合物生成变化规律研究[J].特种油气藏,2012,19(5):103-106,4.基金项目
国家科技重大专项"高含硫气藏高含H2S/CO2水合物预测及防治技术"(2008ZX05017-005-02) （2008ZX05017-005-02）
