Drill bit plays a pivotal role in the drilling process for water well drilling rigs. The quality of a drill bit directly affects the efficiency of water well drilling and the quality of the hole, so we have to pay much attention to the selection and using of the drill bit.
During the drilling process, the operator should pay attention to the drilling usage of the drill bit to make it better for production operations. Below are several aspects that need to be paid attention to:
1. After the drill bit drilled into the structure, the center drilling tool needs to be replaced in time. First, the bottom of the hole needs to be cleaned, and then the residue at the bottom of the hole needs to be blown clean. The tool should be slowly lifted up, and it is most suitable when the lifting force is just enough to lift the drill tool.
2. The drill bit of the water well drilling rig is summarized during the drilling process. It is also necessary to carefully observe the follow-up situation of the casing, timely understand the specific situation in the hole, and keep the hole clean. During the process, strong lifting is prohibited.
3. Sometimes there will be more residual slag at the bottom of the hole of the water well. The rotating part of the eccentric drill bit will be blocked by the slag, which will affect its gathering production. At this time, it is necessary to deliver compressed air and clean the hole again. And make the down-the-hole hammer work for a short period of time, and then resume the lifting operation of the center drill.
