So crossing operation shou ld be taken w ith fish ing m agnet and recyc le fish ing basket in one well repairing operating.

• 每口井需要用强磁打捞器和循环打捞篮进行多次交叉作业,每次打捞出的数量少,效率低,且打捞很不彻底,导致后续工序进行困难。