近５年来，淮南，安阳，柳林等地区１２口煤成气井采用塞流固井技术和漂珠低密度水泥浆固井技术取得，固井质量合格率为１００％，优质率为７８％，探讨了塞流固井中......

To guarantee water quality of waterscapes in Metal Park of Zhenhai District of Ningbo City, and keep it above the Grade-......