During the drilling process, you must carefully operate, evenly feed the drill, and do not pressurize to start the turntable. When it is invalid, the drilling is decisively tripped and processed according to the eye-drawing procedure. The downhole conditions are normal, the wellbore is unobstructed, and the drill bit can go down to the bottom of the well smoothly; the drill bit should be lightly pressed and slowly rotated to reach the bottom of the well smoothly. 

After drilling, when the drill bit is a single root from the bottom of the well, the pump should Hollow Mortising Chisel Bits Manufacturers be opened to wash the well. The basic conditions for the drill bit to enter the well are: a. Cone drill bit press the nozzle into the water eye hole by hand or wooden stick

During the drilling process, if there is resistance and no hard pressure, according to different conditions in the well, the water hole on the top of the pump is opened at the right time, and the hole is intermittently drawn with a small displacement. , Record the use parameters of the drill in detail. Use a special up-and-down tool for loading and unloading PDC drill bits, and the inside and out of the drill bit should be properly clamped.

If there is a phenomenon of jerky drilling downhole, the drill bit should be checked out in time.. The roller cone bit should be 'run-in' for about 1 hour, and then drill according to the design requirements; the PDC bit should be lightly pressed and slowly rotated at the bottom of the well 'shape' 1-2 meters, so that the bottom of the well is consistent with the bit . Then drill according to the design parameters. 

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