严重漏失破碎地层钻孔综合施工方法及效果

Comprehensive Construction Technology for Drilling in Serious Leakage and Fractured Formation

摘要:

通过夏家店某矿区含金钒矿复杂地层钻孔施工实例，介绍了在严重漏失、破碎、掉块地层钻进，浅部采用润滑减阻、深部应用优质泥浆护壁等综合施工方法以及所取得的效果。这种综合施工方法钻孔结构简单，效率高，实现了安全钻进，同时又降低了成本，提高了岩（矿）心采取率。

Abstract:

With the drilling construction case in the complex formation of auriferous vanadium, the paper introduced the comprehensive construction with the application of lubrication drag reduction in shallow part and wall protection with high-quality mud in deep part, this construction technology has the characteristics of simple borehole structure, high efficiency, safe drilling, low cost and higher core recovery.