本文通过对国内长筒取心情况的回顾,总结了长筒取心所必须解决的技术关键和主要技术措施。在总结和分析经济效果的基础上,提出在短筒取心收获率较高和岩心成柱性较好的地区,开展长筒取心工作,可以全面提高取心效率,收到事半功倍的效果。 Based on the review of the corollary of domestic long-winged management, this article summarizes the key technical and key technical measures that must be resolved in long-term corollary work. On the basis of summarizing and analyzing the economic effects, it is proposed that the long coring work should be carried out in the areas where the short tube coring rate is high and the core column formation is good, which can increase the coring efficiency and achieve a multiplier effect with less effort.