摘要
由于普光气田有些井存在启动压力梯度,而常规的二项式产能方程没有考虑启动压力,因此不能描述气井的真实渗流特征和分析气井产能。为此,对三项式产能方程进行了推导,用三项式代替二项式,建立了考虑启动压力梯度的拟稳态三项式产能方程,并对普光气田进行了产能预测。
In Puguang gasfield,there is an initial pressure gradient for some wells.However,the conventional binomial deliverability equation does not take initial pressure into consideration ;simultaneously,it can not describe the real percolation characteristics and analyze the well deliverability.So,this study replaces binomial with trinomial,and establishes a quasi-steady state trinomial deliverability equation to predict the deliverability of Puguang gasfield.
出处
《天然气技术与经济》
2012年第2期36-37,78,共2页
Natural Gas Technology and Economy
关键词
普光气田
三项式
启动压力
产能预测
Puguang gasfield,trinomial,initial pressure,deliverability prediction
