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我国岩心钻探钻具标准曾制订过四次,即YB235—63标准,YB236—63标准(钢粒—合金钻进),YB235—70标准(代替前二个标准,并包含了小口径金刚石钻具标准)和YB848—75标准(金刚石钻进).YB235—70标准中的金刚石钻具标准部分,主要依据是地质部系统当时试验和初步推广天然金刚石钻探经验,参照瑞典SIS公制钻具标准制订的,而1975年在桂林制订的金刚石钻具标准(YB848—75)则是在人造金刚石钻进技术已经试验成功,但仍处于刚刚推广还缺乏经验的情况下制订的,参照的仍然是瑞典标准.
China’s core drilling standards have been developed four times, namely YB235-63 standard, YB236-63 standard (steel grain - alloy drilling), YB235-70 standard (instead of the first two standards, and includes a small diameter diamond drill Standard) and YB848-75 standard (diamond drilling) .The standard part of YB235-70 diamond drilling tool is mainly based on the trial of the geological department at the time and the initial promotion of natural diamond drilling experience, with reference to the Swedish SIS metric drilling standards However, the diamond drill standard (YB848-75) developed in 1975 in Guilin was developed under the successful test of synthetic diamond drilling technology, but still under the circumstances of its recent promotion and lack of experience. The reference is still the Swedish standard.