某引水工程80m砂砾(卵)石深孔钻进技术总结

The Drilling Technology for Drilling Through 80M Sandy Gravel in Some Diversion Works

砂砾 (卵 )石深孔钻进难度大 ,采用 7套套管、泥浆护壁和地勘水泥等方法 ,成功地钻穿 80 m厚砂卵砾石 ,揭露了基岩埋深 。

m sandy gravel is successfully drilled to be made through by using casing of different diameter and slurry drilling ,which provides a first handed data for the designing work.