摘要
从渗透率应力敏感曲线的升压、降压过程可以看出,在岩心恢复压力即减小净覆压的过程中,其渗透率不能完全恢复到最初的水平,我们把这个现象叫做渗透率的应力敏感滞后效应。本文研究了储层岩石渗透率应力敏感滞后效应,并定义了储层岩石渗透率不可逆损害率,从另一个角度评价了储层岩石渗透率的不可逆损害程度。
It can be seen from the boosting and decompression processes of permeability stress sensitivity curve that in the process of confining pressure decompression the permeability could not return to the initial value.And that is the hysteresis effect of permeability stress sensitivity.In this paper,we studied the hysteresis effect of permeability stress sensitivity,defined and evaluated the irreversible extent of damage in reservoirs.
出处
《内蒙古石油化工》
CAS
2010年第9期177-178,共2页
Inner Mongolia Petrochemical Industry
关键词
应力敏感
敏感滞后
渗透率
不可逆损害率
Stress Sensitivity
Hysteresis Effect
Permeability
Irreversible Extent of Damage
