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5. Exploration and determination of the principles of rotary-percussive underground slimhole drilling

Exploration and determination of the principles of rotary-percussive underground slimhole drilling

来源 :International Journal of Mining Science and Technology | 被引量 : 0次 | 上传用户：xpowers

【摘 要】

：

A possibility of the efficient use of rotary percussive drilling to provide drilling smaller diameter holes(40–70 mm) both in mining and prospecting is disclos

【作 者】

：

Shadrina Anastasija Saruev Lev 

【机 构】

：

InstituteofNaturalResources,InstituteofHigh-TechnologyPhysics

【出 处】

：

International Journal of Mining Science and Technology

【发表日期】

：

2014年2期

【关键词】

：

小井眼钻井 旋转 撞击式 螺纹连接 钻井工具 脉冲时间 钻孔直径 冲击钻进 Rotary-percussive drilling Smaller diamete 

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论文部分内容阅读

A possibility of the efficient use of rotary percussive drilling to provide drilling smaller diameter holes(40–70 mm) both in mining and prospecting is disclosed herein. A new construction designed for the nipple thread connection is described. The relati

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