To those reservoirs that have high mechanical skin and have bad effect after conventional gravel pack,frac-packing for sand-control i...

• 水循环充填、高速水充填适用于污染较小的、不适宜压裂的高渗透率地层,而压裂充填适宜于污染严重,常规砾石充填效果较差的油气层。