取心钻探法 core boring method; core drill method; coreboringmethod 取心钻头 core drilling bit; core head; coring bit; coring crown; rock core bit .
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Paper is divided into two parts, core drill equipment and mud system. Through theoretical analysis to experimental method to complete the design of core drilling and mud system.
论文分为取心钻具和泥浆两部分，通过理论分析到实验的方法来完成取心钻具的设计与泥浆体系的建立。
A laser holographic method of measuring the surface Rayleigh-wave rate of the core taken from the oil-drill of Daqing is given. The measured results were analyzed and discussed.
提出油田井下岩芯表面瑞利波的激光全息测试方法，给出了测量结果并进行了分析和讨论。
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