本文主要论述了空气潜孔锤跟管取心钻进规程。
This paper discusses the procedures of DTH hammer and core drilling with casing.
基岩钻探方法以采取普通硬质合金清水回转垂直取心钻进，覆盖层采用干钻。
For bedrock drilling ordinary hard alloy driller can be adopted for vertical core-drilling with the addition of clear water during rotation. for overburden dry drilling process can be adopted.
根据科学钻探对岩心的特殊要求，认为金刚石取心钻头是科学深钻取心钻进较理想的选择。
Diamond core bit is preferred for coring operation in terms of the special requirements of scientific drilling.
本文是以中国水电顾问集团成都勘测设计研究院负责“架空层钻进取心技术研究”项目为依托，研究的主要内容是空气潜孔锤跟管取心钻进技术和新型植物胶冲洗液的开发研究。
The main contents of this thesis are the research of simultaneous casing & coring method by pneumatic Down-the-Hole (DTH) hammer drilling and the innovation of a novel vegetable-gum drilling fluid.
根据不同地层所采用的钻头和取心器，介绍了不同地层的钻进取心方法和取得的成果。
The core drilling method and the obtained achievement are introduced with respect to the bit and core barrel used in different formation.
当取心钻具采用双层管时，钻进所用的钻头就需要用普通双管钻头。
Conventional double tube bits should be used as bits for drilling, while coring tool is double tube.
当取心钻具采用双层管时，钻进所用的钻头就需要用普通双管钻头。
Conventional double tube bits should be used as bits for drilling, while coring tool is double tube.
应用推荐