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[1]一种孔内驱动式水平定向钻反循环扩孔钻头,马保松；韦立勇；曾聪；兰海涛；舒彪, 授权日期:2011-04-06, 授权号:CN201010515227.1.
[2]一种水平定向钻管道穿越反循环钻进方法及专用钻头, 授权日期:2011-04-06, 授权号:CN201010515142.3.

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