Reservoir pressure decline,the increase of recovery rate and the damage of rock structure are main reasons of micro fine migration and sand production during oil recovery process of s...

• 疏松砂岩油藏开采过程中,油层压力下降和采油速度的增加以及岩石结构的破坏,是造成油层岩石微细粒运移和油井出砂的主要原因。