How should drill bits be selected for different working formations of water well drilling rigs?
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The drill bit is one of the important drilling tools in the drilling of water well drilling rigs. It can be said that without the drill bit, the water well drilling rig equipment cannot be started and produced normally. This shows the importance of the drill bit in the water well drilling rig. For different types of water well drilling rig equipment, different drill bits need to be matched in production. When selecting drill bits for water well drilling rig equipment, the following aspects should be paid attention to:
1. When producing in soft rock with better drillability, the drilling speed is faster, and it is necessary to choose the one with larger slag discharge and high slag discharge quality, and it is best to choose the four-wing shape.
2. When producing in hard rock, due to the high strength of the rock, each column tooth and drill bit need to bear a large amount of load, so it is necessary to choose a drill bit with high strength of the bit body and column teeth.
3. When rock drilling with clay, the slag discharge hole is often blocked due to the loose clay, so the side slag discharge bit can be selected.
4. When drilling in rock with good toughness, wedge-shaped tooth bit can be selected to ensure safe production.
