PDC bits, cone bit Precautions

PDC bits, cone bit Cautions a, then, when you do not damage the unloading roller bit drill gear. b, to keep the mud clean to prevent blocking drill boreholes, which will affect the use of drills. c, drill control speed to prevent sudden Difficult to make cone drill  synthetic diamond  results. d, keeping two pumps Sheung Shui intact. e, kept clean and free of litter  Synthetic diamond , from the drilling, drilling are mounted scraper or steel covered with a wellhead, always check the jaws insurance sales and  Diamond blade  tools to prevent wellhead litter. f, pay attention to drill, to prevent the slide drill, drill string. g, limp encounter drills, jumping drills when drilling parameters to adjust. h, roller cone drill bit in the end, the first cycle ten minutes, with 1-2 tons of drilling 0.5 m or so,
Slowly pressurized to 6-8 tons drilling. Send drill evenly and prevent sudden venting damage tooth drilling pressure is generally not more than 10 tons. Encountered when drilling is slow, to analyze if the reason is because the sandwich to be patient, do not blindly increase WOB.