【摘 要】
：
报告提纲一、概迷二、地质岩心钻机三、钻杆四、钻头及孔底动力钻具五、取心钻具与事故处理工具六、地质岩心钻探技术标准制定七、应用情况八、延伸与探索九、结论与展望一、
【出 处】
：
2015中国煤炭学会钻探工程专业委员会成立大会暨第一届特邀报告研讨会
论文部分内容阅读
报告提纲一、概迷二、地质岩心钻机三、钻杆四、钻头及孔底动力钻具五、取心钻具与事故处理工具六、地质岩心钻探技术标准制定七、应用情况八、延伸与探索九、结论与展望一、概述本世纪初,我国地质岩心钻探技术状况是:1、对新工艺技术适应性差的立轴钻机还在普遍使用,新一代全液压动力头钻机需要花重金进口;2、国产绳索取心钻杆由于管材质量问题只能满足1000米以内钻进,超过1000米时钻杆折断事故频发;3、钻探器具也相对落后,硬岩地层钻进效率低;4、事故处理工具简单,处理孔内事故能力差,常常导致整个钻孔报废.
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