本文结合现场成桩施工，采用全护筒加套筒的方法处理溶洞及承压水的技术总结，可供同类型施工参考。
Combined with the fieldwork, this paper summarizes the construction method of adding sleeves to total guard barrel and the technique of bearing water for reference.
增加套管壁厚的方法已在陇东油区部分调整井及更新井中得到了应用。
The method of thickening the casing wall has been applied in some adjustment wells and renewed wells in Longdong unit.
分析表明：该管线的变形失效是在加套管过程中工艺安排不当所致，在施工过程的试压期间引起了内管的外压失稳，使内管产生永久的变形。
The impact of some key construction links on destabilization of the external pressure of the inner pipes was analyzed and verified in the course of pope-line rebuilding.
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