摘要
注入储集层水中固体悬浮物质量浓度及颗粒直径的大小是影响油田注水水质的重要指标。针对固体颗粒对于扶杨油层伤害程度的问题,通过室内岩心模拟实验的方法,作出固体颗粒对扶杨油层伤害的评价,说明不同固体悬浮物质量浓度及颗粒直径对储集层渗透率的影响。结果表明,注入水中颗粒质量浓度及悬浮固体颗粒粒径越大,油层渗透率损失幅度越大,其注入压力上升越快。当注入孔隙体积增加到一定程度时,渗透率损失及注入压力达到一个稳定值。对扶杨油层的有效开发具有重要参考价值,在扶杨油层开发方面取得了一定的成效。
The important index for the injected water quality of the oilf ield contains the concentration of the suspended material and the diameter size of particle in the injected water. In view of the problem about the damage degree of the solid particles to the Fuyang oil layer,through the method of the core flooding test, the damage of the sol id partoil layer is mainly evaluated. The effect of different solid particles and particle diameter on the permeability of reservoir is illustrated. It is concluded that the bigger the concentration of the suspended material and the diameter size of particle in the injected water,the greater the loss of permeability of reservoir,and the faster the injection pressure rise. When the pore volume is increased to a certain degree, the loss of permeability of reservoir and the injection pressure can reach a stable value. It will provide important reference for the effective development of Fuyang oil layer, and some achievemthe development of Fuyang oil layer.
出处
《石油化工高等学校学报》
CAS
2016年第6期43-46,共4页
Journal of Petrochemical Universities
基金
国家自然科学基金项目(50874023)
关键词
低渗透
扶杨油层
注入水水质
固体颗粒
油层伤害
Low permeability
Fuyangoillayer
Injected water quality
Solidparticle
Formation damage
