套管损坏是钻井及采油作业中存在的一个严重问题。越来越多地使用高强度套管和优质连接方法使目前套管回接的设计受到限制。最常用的回接类型,橡胶或铅密封不能满足把套管柱恢复到原来的设计规范。这两种回接管都依靠大量的密封材料(铅或弹性材料)进行充填,并且形成了一个比较大的密封间隙。这个大的密封横截面积留下了一个薄管壁截面。尽管这些 Casing damage is a serious problem in drilling and production operations. Increasing use of high-strength sleeves and high-quality joining methods has limited the design of current sleeves. The most common type of rewinding, rubber or lead seals does not meet the original design specifications for the casing string. Both of these return tubes are filled with a large amount of sealing material (lead or elastomer) and form a relatively large sealing gap. This large seal cross-section leaves a thin tube wall section. Despite these