豫东地区中深孔厚覆盖地层钻探套管护壁和泥浆护壁效果对比

Comparison of Wall Protection with Casing and Mud for Medium-depth Hole Drilling in Thick Overburden Layer in the East of Henan

摘要:

阐述了河南省新蔡县焦庄铁矿预查钻孔施工工艺和河南省睢县煤矿预查太康县煤孔施工工艺，通过对比2个矿区施工的经验教训，分析了套管护壁和泥浆护壁在豫东地区的适应性。

Abstract:

The paper describes the construction technologies of pre-exploration in Jiaozhuang iron mine and Suixian coalmine in Henan Province. By the comparison of the construction experiences in these 2 mines, analysis is made on the adaptability of wall protection with casing and mud in the east of Henan.