南坪矿区复杂地层深孔钻进技术研究

Study on Deep Hole Drilling Technology in Complex Formation of Nanping Mining Area

摘要:

针对南坪矿区复杂地层深孔钻进中出现的护壁堵漏难、“打滑”地层钻进效率提高难、复杂孔段采心难等问题进行了探索和研究，通过开发适合该复杂地层特点的优质系列冲洗液、引进国内先进取心钻具、选择特制孕表镶钻头等手段,有效解决了制约生产效率的难题。

Abstract:

According to the difficulties of deep hole drilling in Nanping mining area, study was made on the wall protection and leakage stoppage, improving drilling efficiency in sliding formation and coring in complex formation. Development of quality series of flushing liquid, fetching in advanced coring tool in China and purpose making set & impregnated diamond bits were adopted for improving the construction efficiency.