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Operation principle of drilling machine

Operation principle of drilling machine:

Driller is mainly used to develop groundwater resources, including domestic water, agricultural water and industrial water, and is also suitable for hydrogeological exploration, construction engineering and bridge foundation drilling.

There are two types: one is to add impact flow on the basis of rotary table reverse drilling machine, which is mainly based on reverse drilling. When pebble beds are encountered, a dual-purpose drilling machine with percussion drilling capability will be used. It has a strong habit of various habits. The other is a combination of impact and reverse action, such as the pneumatic DTH drill. Air from the upper and lower chambers of the piston flows down into the bit, which cools the bit and brings cuttings from the bottom of the hole out of the wellhead. The structure of the reversible circulation well washing part is basically the same as that of the rotary table reversible well drilling machine with compressed air. The bit used is tungsten carbide spherical tooth bit or roller cone bit. Pneumatic DTH hammer drillers can be used to drill deep Wells in hard rock formations. The drilling speed is high, and the drilling speed does not decrease as the drilling depth increases, and the drilling is relatively straight. In order to adapt to the drilling needs of different formations and improve the drilling capacity, the driller is moving towards the direction of multi-functional driller and full hydraulic transmission and control: that is, the driller is equipped with a variety of equipment and accessories. Various drilling methods, such as impact, reverse and DTH hammer; Mud washing, compressed air washing and forward and reverse cycle washing are also available.