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

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.