江西省浮梁县朱溪矿区深孔钻探施工技术研究

Study on Deep Hole Drilling in Zhuxi Mining Area of Jiangxi

摘要:

详细介绍了朱溪矿区3个深孔钻遇地层、钻探设备、钻孔结构、钻头使用、起大钻、冲洗液使用、护孔堵漏、套管使用等具体情况。重点分析和总结了钻孔结构、钻头使用、冲洗液使用、护孔堵漏等钻探工艺技术，并提出今后深孔施工需慎重配套钻探设备、增大钻头外径、提高钻探效率、重视深孔孔斜尤其是方位超差和灰岩溶洞问题等建议。

Abstract:

The paper introduced 3 deep holes construction in Zhuxi mining area about the drilling formation, drilling equipment, borehole structure, bit application, drill string lifting, washing fluid application, wall protection & lost circulation control and casing situation. Analysis and summery emphasized the drilling technologies of borehole structure, bit application and wall protection & lost circulation control. Some suggestions were made for deep hole construction on drilling equipment matching; outside bit diameter increasing; drilling efficiency improvement; hole deviation, especially azimuth out of tolerance and karst cave.