一、试验目的、意义 石油钻井工程是一门多学科、多工种密切配合的综合应用科学,要“多、快、好、省”的钻成一口油气井,必然涉及到许多基本理论和工程实际问题。尽管问题很多,其中心总是离不开破碎岩石,清除岩屑,形成井眼。 钻头破碎岩石,使原来结为一体的岩石形成岩屑。通常,岩屑比重大于洗井液的 First, the purpose of the experiment, the meaning of Petroleum drilling project is a multidisciplinary, multi-species closely integrated with applied science, to “more, faster, better, provincial” into a well, inevitably involves many basic theory and engineering practice problem. Despite the many problems, the center is always inseparable from the broken rock, remove cuttings, the formation of the wellbore. The drill shatters the rock, causing the rock that originally formed into a rock to form cuttings. In general, the specific gravity of cuttings is greater than that of washings