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为齐全准确地取得钻井第一性资料,江汉石油管理局钻井处地质队于1975年试制成功钻时取样信号仪。这种仪器能自动记录每钻进一米的纯钻进时间,自动显示钻进的累计井深和按泥浆迟到时间发出取样的信号。仪器迄今经受了每米15秒钟至128分钟的快慢速钻进的考
In order to obtain the first-rate data of drilling well completely and accurately, the geology team of Drilling Department of Jianghan Petroleum Administration Bureau trial-produced the drilling sampling signal instrument in 1975. This instrument automatically records the net drilling time of one meter per drill, automatically displays the cumulative depth of drilling and the sampled signal as the slurry is late. The instrument has so far undergone fast and slow drilling of 15 seconds to 128 minutes per meter