河南省舞钢市王楼铁矿详查钻探施工技术

Construction Technology of Detailed Survey Drilling in Wanglou Iron Ore Area of Henan Wuyang

摘要:

河南省舞钢市王楼铁矿区第四系覆盖层厚度大，地层复杂，岩层破碎，易坍塌缩径，施工难度大。针对该矿区地层特点，从设备选型、钻孔结构、套管、钻头选择、冲洗液等方面采取相适应的施工工艺及技术措施，取得了较好的效果。总结的经验和体会将对今后的钻探施工有所帮助。

Abstract:

The Quaternary overburden layer is thick in Wanglou iron ore area of Henan Wuyang with complex formations and breaking rocks, collapsing and diameter shrinkage easily happen, the survey drilling is difficult. According to this situation, appropriate construction process and technical measures were adopted, such as equipment selection, borehole structure, casing, bit selection and flushing fluid technology. This paper summarizes these experience.