一种水平定向钻管道穿越反循环钻进方法及专用钻头

Release time:2016-03-30

Affilication of Author(s):中国地质大学（武汉）

School Sign:中国地质大学（武汉）

Patent Applicant:马保松；韦立勇；兰海涛；曾聪；舒彪

Type of Patent:Invent

Authorization number:CN201010515142.3

Number of Inventors:5

Service Invention or Not:no

Authorization Date:2011-04-06

First Author:马保松