Water well drillers may specialize in a specific method of drilling, such as cable, rotary, auger, hammer or reverse circulation drilling.
水井钻井工可能会专注于一个特定的钻探方法，如电缆，旋转，钻，锤或反向循环钻探。
The air-driven down-hole hammer drilling is still very effective and speedy in well drilling in karst limestone area.
在水文水井中，气动潜孔锤钻进仍可发挥它高效率、高速度的作用。
This paper discusses the rock crushing mechanism of DTH hammer drilling and factor influencing the effect of DTH hammer broken rock.
本文论述了潜孔锤钻进的岩石破碎机理以及影响潜孔锤碎岩效果的因素。
According to the exploration problems in an open-pit mine, a new drilling method using reverse circulation DTH hammer drill is put forward.
针对露天矿钻探施工中存在的问题，提出了利用贯通式反循环潜孔锤进行施工的新方法。
We've started the drilling process and we are hoping that we can get contact more or less this Saturday, depending on whether we have to do a change in the hammer or not.
我们开始钻探过程而且我们希望这个星期六能更多地接触，而这要取决于我们是否要对钻头做出改变。
The DTH percussion-compact drilling is a high efficiency technology drilling in soil strata, which use the impact force produced by hammer piston to crush and compact soil.
潜孔锤冲击挤密钻进技术集冲击钻进、振动钻进及空气钻进的优点于一体，钻进效率高，成孔质量好，在土质地层钻进工程中有着广阔的应用前景。
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.
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。
This paper collects air hammer' using status in oil and gas fields drilling site at home and abroad.
收集了国内外空气锤技术在油气田钻井现场的使用现状。
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。
YZX127 hydro hammer used for full face drilling is described with its structural characteristics, performance parameters and laboratory test results as well as the application prospects introduced.
介绍了用于全面钻进的YZX127型液动潜孔锤的结构特点、性能参数、室内岩样实钻试验效果，展望了其广阔的应用前景。
The hollow-through DTH hammer drilling techniques with whole hole reverse circulation is adopted, it is proved that this technique can resolve drilling.
贯通式潜孔锤反循环钻进技术是一种先进的钻探方法，适用于复杂地层中的地质勘探以及各类钻孔工程。
The experience of pile hole drilling using pneumatic hammer in bridge construction is reviewed. Equipments, tools and techniques are also described in detail.
文中回顾了在建桥工程中，应用风动潜孔锤钻进桥桩桩孔的经验，具体介绍了使用的设备、工具及施工工艺技术。
Elements of stonework excavation: Use down-hole drill assisted with hammer drill drilling. Control blasting loosely and side slope molding smoothing wall blasting.
石方开挖施工要点：采用潜孔钻机配以凿岩机钻眼，松动控制爆破和边坡成型光面爆破。
8 the rig is suitable for various drilling methods such as carbide bit drilling, auger drilling, DTH hammer drilling, follow - up casing drilling, etc. 3.
钻机可适用多种钻进工艺方法，如合金回转钻进螺旋钻进潜孔锤钻进跟管钻进等。
Oil gas diffusion can probably occur from the product pipeline due to some factors such as pipe corrosion, foreign power collision, oil stolen by drilling hole or water hammer.
成品油管线在运营过程中会发生泄漏，主要原因为管线腐蚀、外力撞击、打孔盗油及水击等，泄漏后油品蒸发扩散形成的爆炸性区域具有很大的危险。
Literature research of air hammer drilling in domestic and overseas.
国内外空气锤钻井技术的文献调研。
Used with our down-hole hammer, it can drill through complicated formations in which drilling holes are easy to collapse.
配合我厂生产的潜孔锤，可以钻穿复杂，易坍塌底层。
Crack size, hammer stroke frequency and rotary speed influence the drilling string fatigue life involve, in which the crack size and stroke frequency were two major factors.
影响钻柱疲劳寿命的因素包括钻柱裂纹尺寸、空气锤冲击频率、转盘转速等，而空气锤冲击频率与裂纹尺寸是影响钻柱疲劳寿命的两大主要因素。
Crack size, hammer stroke frequency and rotary speed influence the drilling string fatigue life involve, in which the crack size and stroke frequency were two major factors.
影响钻柱疲劳寿命的因素包括钻柱裂纹尺寸、空气锤冲击频率、转盘转速等，而空气锤冲击频率与裂纹尺寸是影响钻柱疲劳寿命的两大主要因素。
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