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di luo xuan zuan gan zai ju bu song ruan mei ceng shun ceng wa si zuan kong shi gong zhong de ying yong
Author(s): 
Pages: 42-43,61
Year: Issue:  5
Journal: Coal

Keyword:  低螺旋钻杆顺层平行钻孔钻孔深度光圆钻杆排渣原理;
Abstract: 针对松软煤层钻孔施工成孔率低、钻孔施工深度浅等技术问题,以寺河二号井为例,分析光圆钻杆和低螺旋钻杆在井下施工中的优缺点。通过对松软煤层中两种钻杆的钻进特性分析,同时进行两种钻杆排渣原理研究并进行现场实践分析,得出使用低螺旋钻杆钻进的优点,为后续松软煤层钻孔施工提供参考。
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