摘要
在应力敏感性实验中,采用改变围压的方法近似模拟储层所受压力变化,研究应力变化对储集层渗透率的影响。根据实验结果建立渗透率与有效应力之间的经验关系式,并基于Terzaghi有效应力理论考虑应力敏感性的产能方程,分析应力敏感性对气井产能的影响。
In this pressure-dependent experiment,confing pressure is varied to simulate the change of reservoir pressure.The empirical relationship between permeability and effective stress is established by the experiment result,moreover,deliverability equation considered pressure-dependent is formed with Terzaghi′s effective stress law and the effect of pressure-dependent permeability on gas well deliverability is analyzed.
出处
《重庆科技学院学报（自然科学版）》
CAS
2012年第2期32-35,共4页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
国家重点实验室国际合作项目(PLN0901)
关键词
低渗
渗透率
应力敏感性
气井产能
low permeability
permeability
pressure-dependent
gas well deliverability
