摘要
简述了陇东煤田地区地层特点,分析影响钻探施工的主要因素,采取增大钻头外径、优化钻孔结构、优选适岩钻头、完善泥浆体系等配套技术措施,重点阐述了粘附卡钻事故的预防和处理技术。
The formation characteristics of Longdong coalfield region are described, and based on the analysis on the main factors influencing the drilling construction, the drill bit diameter increasing, the borehole structure optimizing, the suitable drill bit for rock optimally selecting, mud system improving and other supporting technologies were adopted. The paper focuses on the prevention and treatment of the adhesive sticking drill accident.
出处
《探矿工程（岩土钻掘工程）》
2013年第11期28-31,共4页
Exploration Engineering:Rock & Soil Drilling and Tunneling
关键词
塑料套管
适岩钻头
泥浆体系
粘附卡钻
绳索取心钻探
陇东煤田
plastic casing
suitable drill bit for rock
mud system
adhesive sticking drill
wire-line core drilling
Long-dong coalfield
