涩北一号气田井筒积液因素诊断模式  

Diagnostic Model of Wellbore Liquid Accumulation in Sebei 1 Gasfield

作　　者：徐晓玲 严焕德 朱化勇 李清 

机构地区：[1]中国石油青海油田勘探开发研究院,甘肃敦煌736202 [2]中国石油青海油田天然气开发公司,青海格尔木816000

出　　处：《天然气技术与经济》2012年第3期40-41,78-79,共2页Natural Gas Technology and Economy

基　　金：2010年中国石油天然气股份有限公司青海油田公司天然气前期评价项目"涩北一号气田单井生产动态分析及合理产量研究"

摘　　要：在产水气井的生产中,气井产量小于临界携液产量,则气井将发生井筒积液,影响气井的正常生产。立足于气井的采气曲线,根据油套压的变化幅度、气水产量等动态监测资料,建立了井筒积液诊断模式。涩北一号气田的149口投产气井中,91口通过多因素分析,判断井筒具有积液;68口诊断有积液但目前还在生产的气井,其产量递减较快,停躺的风险很大。If gas production is less than critical liquid-carrying capacity during the production of a gas well with water,wellbore liquid accumulation will be found to affect a normal production.In this study,a diagnostic model of wellbore liquid accumulation is developed based on gas productivity curve and some dynamic monitoring data including variation scale of tubing and casing pressure,and gas-water production.There are 91 ones on which wellbore liquid accumulation is found among 149 brought-in gas wells in Sebei 1 gasfield.And there are 68 wells among the former 91 ones still in a production in spite of liquid accumulation.But their production decline is very quickly,resulting in a large risk easily existing in the later development.

关 键 词：涩北一号气田 临界携液产量 井筒积液 诊断 

分 类 号：TE377[石油与天然气工程—油气田开发工程]