胶东半岛山后矿区复杂地层深孔绳索取心钻探的探索和应用

Exploration and Application of Deep Hole Wire-line Coring Drilling in Complex Formation of Shanhou Mining Area of Jiaodong Peninsular

摘要:

简述了胶东半岛山后矿区地层特点，从钻孔结构、钻杆选择、钻头改进、泵压控制、冲洗液配制等几个方面，阐述山后矿区钻探施工应重点把握的环节，阐明了护壁堵漏、井内事故的预防与处理等方面的要求，提高防范孔内事故发生的意识，提高钻进效率。

Abstract:

Formation characteristics of Shanhou mining area of Jiaodong peninsular were described. The important points of drilling construction in Shanhou mining area were discussed in borehole structure, drilling rod selection, bit improvement, pump pressure control and washing fluid preparation; the demand of wall protection & leakage stoppage and downhole accident prevention & treatment were presented to enhance precautionary consciousness and improve drilling efficiency.