气井携液临界流量计算新方法  

A new calculation method for critical liquid carrying flow rate of gas well

作　　者：刘刚[1] 

机构地区：[1]中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《断块油气田》2014年第3期339-340,343,共3页Fault-Block Oil & Gas Field

基　　金：中国石油股份有限公司重大攻关项目"火山岩气藏有效开发技术研究"(110011345)

摘　　要：气井最小携液临界流量是气藏开发方案编制中的一个重要参数。目前现场主要应用Turner和李闵公式进行气井携液临界流量的计算。但这2个公式具有一定的局限性,都没有考虑界面张力对携液临界流量的影响,在计算时将气水界面张力简化为常数进行计算,而实际上界面张力是温度与压力的函数。因此,文中对现有计算公式进行了修正,并根据实际气井情况进行了计算,结果表明,在计算气井携液流量时应该考虑界面张力,其计算结果更为客观、实际。The minimum critical liquid carrying flow rate is an important parameter in the development planning of gas reservoir. At present, Turner and Li Min′ formulas for calculating the critical liquid carrying flow rate of gas wells are mainly used. But these two kinds of formulas have certain limitations, which don′t consider the effect of interface tension on the critical liquid carrying flow rate. The calculation of gas water interface tension is simplified as constant to be computed, and in fact, the interface tension is a function of temperature and pressure. Therefore, this paper modifies the existing formulas. According to actual wells, the gas liquid carrying flow rate of gas well is calculated. Results show that the interface tension should be considered in the calculation of gas liquid carrying flow rate. Based on this, the calculation is more objective and practical.

关 键 词：气藏 界面张力 携液临界流量 

分 类 号：TE37[石油与天然气工程—油气田开发工程]