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日益严重的井漏问题，既影响钻井进程，又给勘探开发带来巨大的经济损失。文章利用测井资料对川东地区出现的井漏现象进行了分类总结，并从地质、测井等方面剖析了东安1井井漏原因。分析认为：在进行井位的前期论证中应充分利用测井、地震资料对钻探区域可能的漏失层段进行孔、洞、缝的预测，同时加强前期地层压力、地应力的研究工作。由于井漏问题涉及学科面广，难度大，尽可能开展多学科联合攻关解决钻井工程中井漏问题势在必行。

Enlightenment from Lost Circulation of Dong''''an Well 1

Now,lost circulation becomes a more and more serious problem It influences drilling speed and leads to tremendous economic loss on the oil and gas exploration and development With logging data,the article makes classification for the lost circulations happened in East Sichuan area,and discusses the reasons of lost circulation of well Dong'an 1 according to geological and logging data The article suggests that the distribution of pores,caves and fractures in the potential loss intervals of the exploration region should be predicated before a well location is settled,making good use of logging and seismic data Also,the early study of the formation pressure and earth stress should be reinforced. Since lost circulation is caused by many complicated factors and is a big problem,the team work is a necessary way to solve the problem