The invasion in solid phase and trap damage in water phase are main reasons of productivity impairment.
固相侵入、水相圈闭损害是产能损失的主要原因。
2
The formation damage during drilling are recognized as 2 types: mud solid particles plug and mud filtrate invasion.
钻井过程中的油层污染可分为泥浆固相颗粒侵入和滤液侵入2种类型。
3
Formation damage caused by the invasion of solid suspensions has been studied by several investigators and some modeling approaches have also been reported in the literature.