Diamond coring bits are utilized for core drilling.
在取芯钻井井段，选用金刚石取芯钻头。
This paper discusses the procedures of DTH hammer and core drilling with casing.
本文主要论述了空气潜孔锤跟管取心钻进规程。
This paper describes and summarizes the core drilling process and the technical measures.
文章介绍并总结了该项目岩芯钻探钻孔施工工艺与技术措施。
应用推荐