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爆炸焊接加固
爆炸焊接加固技术是针对油、气井错断井的修复而研制的。它首先采用爆炸整形技术将错断井整形,使错断的上套管和下套管通过爆炸整形使之达到在一条轴线上。然后将爆炸焊接弹输送到井下套管错断处,点燃发动机装药进行排空,引爆环焊药进行焊接。扩径药将衬管扩径,脱扣药爆炸将加固管和管柱脱扣,完成焊接加固这一过程
expl.
explosive welding and strengthening
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