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PDC钻头具有钻进时间长、机械钻速高、起下钻次数少等特点,使用PDC钻头可大大提高钻井速度。但PDC 钻头的使用效果与PDC钻头在钻进过程中短程起下钻的次数有很大关系,每次短程起下钻后机械钻速都要明显地降低。吐哈中原钻井公司通过在钻井液上做文章,围绕如何形成薄滤饼和如何减薄滤饼上下功夫,基本解决了PDC钻头起下钻阻卡问题,实现了PDC钻头连续钻进(中途不用短程起下钻),充分发挥了PDC钻头使用效果。
PDC drill has the advantages of long drilling time, high ROP and less drilling times. Using PDC bit can greatly improve the drilling speed. However, the use of the PDC bit has a great effect on the number of times the PDC bit drills a short distance during the drilling process, and the ROP will be significantly reduced after each short stroke. Tuha Central Plains Drilling Company through drilling fluid on a fuss about how to form a thin cake and how to reduce the cake work hard to basically solve the PDC drill bit from the drilling resistance card problems, to achieve a continuous PDC bit drilling (halfway without Short cut from the drill), give full play to the use of PDC bit.