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本文介绍的加重管钻进法是一个新的尝试,且通过理论与实际的研究都证明较采用φ68毫米钻铤为优.作者在北票煤田采用的加重管与肋骨钻头钻进的经验表明,无论从时效还是从防止孔斜方面都获得较好效果.可供有关勘探工作人员参考使用.
This paper introduces a new attempt to increase the pipe drilling method, and through both theoretical and practical studies have shown that the use of φ68 mm drill collar is better than the author in the Beipi coalfield using weighted pipe and rib drilling experience shows that, In terms of aging or from the hole to prevent Oblique get better results for reference for the exploration staff.