低气液比凝析气井井筒动态预测  

BOREHOLE PERFORMANCE PREDICTION OF GAS CONDENSATE WELLS WITH LOW GAS/LIQUID RATIO

作　　者：何志雄[1] 杜竞[1] 孙雷[1] 王雷[2] 林涛[2] 

机构地区：[1]西南石油大学 [2]中国石化西北油田分公司

出　　处：《天然气勘探与开发》2009年第3期29-31,共3页Natural Gas Exploration and Development

基　　金：国家自然科学基金项目(编号50874094);四川省教育厅重大培育项目(编号07ZZ043)

摘　　要：凝析气井在生产过程中,随着产气量、产油量、产水量的变化,井筒中不同位置处的压力、气液组成、气液摩尔分数和积液情况也随之变化。综合利用Hagedorn-Brown方法和低气液比井筒携液计算方法,结合流体相平衡热力学闪蒸计算,运用状态方程模拟,提出了低气液比凝析气井井筒动态预测方法,可准确预测不同生产时期低气液比凝析气井井筒中不同位置处的压力、气液组成、气液摩尔分数及积液情况等井筒动态,能更好地指导凝析气井的生产。并举例说明了低气液比凝析气井井筒动态预测方法,具有广阔的应用前景。During production of gas condensate wells,the pressure,component and molar fraction of gas and liquid as well as accumulation at different borehole places change with the variance of gas,oil and water production rate. By comprehensive utilization of the Hagedorn-Brown method,the borehole liquid-carrying method under low GLR,the flash calculation and EOS,borehole performance prediction method for gas condensate wells is proposed,which can accurately forecast the pressure,component,molar fraction of gas and liquid as well as accumulation at different borehole places in different production periods. As a result,the following production will be guided. In addition,this paper demonstrates the application of prediction method and its perfect application prospect.

关 键 词：凝析气井 井筒动态 井筒携液 垂直管流 相态 

分 类 号：TE377[石油与天然气工程—油气田开发工程]