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为了提高深井岩屑采集样品的代表性,该文提出采用粒级实物测量法取代普通实物测量法的迟到时间计算方法。并通过对粒级实物测量法现场多深度试验后发现深井岩屑迟到时间实测误差较大、不同粒径岩屑迟到时间差别明显、粒级实物测量法实用性较好。
In order to improve the representativeness of samples collected from deep-bore cuttings, this paper proposes a method to calculate the late arrival time by using particle-based physical measurement instead of ordinary physical measurement. Through the in-depth multi-level in-situ measurement of particle-level physical measurement method, it was found that the measured error of late-time debris flow in deep well was larger, the difference of late arrival time of cuttings with different particle sizes was significant, and the practicality of particle-size physical measurement method was better.