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近年来，大庆油田油水井相继出现了多个套管损坏成片区。在成片套管损坏区，由于套管错断，注水井被迫停注，造成注采系统不完善，开发效果交差，油田稳产受到威胁，因而，成片套管损坏区补充更新调整井已势在必行。但在地下岩层大面积蠕变的套管损坏区内能否打井，新钻井能否维持较长一段开采时间而不至于短期内发生套管损坏，则是矿场生产中一个十分重要的问题。本文对萨北套管损坏区更新试验井三年多的套管保护措施进行了综合分析，为成片套管损坏区今后更新调整井套管保护提供了实践经验。
In recent years, oil and water wells in Daqing Oilfield have successively damaged several casing areas. In the damaged area of the casing, due to casing misjudgment, the water injection well was forced to stop, resulting in imperfect injection and extraction system and cross-development effect, and the stable production of oilfield was threatened. Therefore, Imperative. However, it is a very important issue in mine production that drilling can be done within the area of casing damage caused by large-area creep in underground rock formations. Whether the new drilling can maintain a longer mining time without casing damage in a short period of time . In this paper, a comprehensive analysis of the casing protection measures taken over three years in the test wells in the damaged area of northern Saibei has provided a practical experience to update the casing protection of the well in future.