In accordance with downhole tubing sticking by sand burial accident, this paper proposes hollow rod sand washing after analysis of downhole string structure and hydraulic calculation of sand grain.

• 针对处理井下油管砂埋遇卡事故作业中出现的技术问题,在分析井下管柱结构及砂粒的水力计算的基础上,提出了空心抽油杆冲砂工艺处理措施。