What aspects should be paid attention to in the drilling process of water well drilling rig
Bit plays a very important role in well drilling, but the quality of a bit directly affects the efficiency and quality of well drilling. Therefore, attention should be paid to the selection and use of bit in the selection process. When we operate the drill bit, we should pay attention to several aspects in order to better production and operation.
1. After the drill bit of the water well drilling rig is drilled into the structure, the central drilling tool needs to be replaced in time. First, the hole bottom needs to be cleaned, and then the residue at the hole bottom needs to be blown clean. After the drill bit stops rotating, the drilling tool in the water well drilling rig should be slowly lifted up. When the lifting force is just enough to lift the drilling tool, it is most appropriate.
2. The bit of the water well drilling rig shall be summarized during the drilling process. It is also necessary to carefully observe the follow-up of the casing, timely understand the specific situation in the hole, and timely keep the hole clean when necessary. In addition, the bit of the water well drilling rig shall not be pulled out by force during the drilling process.
3. Sometimes there will be a lot of residual rock slag at the bottom of the hole of the water well drilling rig, and the rotary part of the eccentric bit will be blocked by the rock slag, which will affect its production. At this time, it is necessary to transport compressed air, clean the hole again, and make the down-the-hole hammer work for a short time, and then carry out the lifting operation of the central drilling tool again.
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