套管月牙形磨损程度预测研究进展

随着深井、超深井、大位移井和水平井的普遍开发，套管磨损问题越来越严重，现场实测中所有严重的磨损都是月牙形磨损。因此，对套管月牙形磨损程度进行深入的研究就显得尤为重要。概述了近年来套管月牙形磨损程度预测方法的研究动态，重点介绍了磨损效率模型和磨屑分析法的特点，并对两种磨损程度预测方法进行了比较，最后指出了套管月牙形磨损程度预测研究的发展趋势。

The Study of Evolution Crescent-shaped Wear Casing Degree Predicting

With the exploitation of the deep well,ultra-deep well,the extended reach well and the horizontal well,casing wear problem becomes more and more serious,field test shows that all of serious wear are crescent-shape wear.Therefore it is especially important that the predicting of crescent-shaped wear casing degree is further study and analysis.Recent advances in the study of crescent-shaped wear casing degree method are reviewed in this paper.It introduced the characteristics of wear efficiency model and sbra...