井下作业中铅模的印痕分析

Analysis of Imprints of The Lead Impression on Downhole Operation

井下作业作业中的铅模印痕的样式繁多,正确分析鱼顶在铅模上留下的印痕,可以为打捞修整落鱼提供可靠的保障,否则修井失败或者井越修问题越多严重时导致油井报废。为了更好的利用铅模打印,本文对杆类、管类、小落物、套变及复合落物等铅模印痕的分类和判别方法进行了研究和分析,并归纳总结了铅模印痕的分析方法。

There are many styles of imprints of the lead impression on down-hloe operation.It can provide a reliable guarantee for fishing fishes from the correct analysis of imprints of the lead impression,otherwise failure during repairing well or well abandonment.In order to make better use of lead impression printing,the classification and discrimination method of imprints of the lead impression on rods,pipes,litter mass,casing deformation and complex situation are studied and analyzed and so on.It summarizes the analysis method of imprints of the lead impression at last.