Water well drilling rig – choose the right drill bit
January 07 , 2025
Different types of water well drilling rigs require different types of drill bits, so when choosing a drill bit, it is necessary to make a reasonable choice according to the specific working conditions. The following are some key points to pay attention to when choosing a drill bit: 1. Drilling in soft rock formations: In soft rock formations with good drillability, the drilling speed is fast, requiring the drill bit to have a large slag removal capacity and good slag removal effect. At this time, it is recommended to choose a four-wing drill bit to improve the slag removal effect and ensure smooth drilling. The four-wing drill bit can work quickly in soft rock formations, reduce drilling resistance, and increase drilling speed. 2. Drilling in hard rock formations: In hard rock formations, due to the high strength of the rock, each column tooth of the drill bit needs to bear a large load. At this time, a DTH impact drill bit (DTH: Down The Hole) should be selected. The DTH impact drill bit uses the impact force generated by air pressure or hydraulic pressure to effectively penetrate hard rock formations, and is particularly suitable for drilling hard rock and hard...
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