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金刚石绳索取心技术在我国推广后，对润滑钻井液提出了更高的要求。不仅要求其润滑性好，不起油垢，同时还要求材料来源广，价格低廉，以求降低成本。目前大多数勘探队都用皂化溶解油（简称皂化油）作冲洗液，其价格昂贵，（每公斤为1.84元），而每钻进一米就需消耗1—2公斤。单冲洗液一项成本每米就需1.8—3.6元/米，几乎与钻头的成本相当，所以降低冲洗液成本是当前研究的重要课题之一，我们根据皂化油乳化液中起润滑作用的是乳化剂而不是机油，机油只起清洗作用这一观点，配制出适用于钻探
Diamond rope coring technology in China after the promotion of the drilling fluid put forward higher requirements. Not only requires good lubricity, can not afford grease, but also requires a wide range of sources of raw materials, low prices, in order to reduce costs. At present, most exploration teams use saponified dissolved oil (referred to as saponified oil) as a flushing liquid, which is expensive (1.84 yuan per kilogram), while 1-2 kilos per meter of drilling is consumed. The cost of a single rinse liquid is 1.8-3.6 yuan / m per meter, which is almost equivalent to the cost of the drill bit. Therefore, reducing the rinse liquid cost is one of the important topics in current research. According to the role of lubricating in the saponified oil emulsion, Emulsifier rather than oil, oil only from the cleaning point of view, formulated for drilling