Zigong has a long history of salt well fishing.It is an important part of well repairing and well mending in ancient China.It also is a key technique dealing with accidents under the well.

• 自贡地区的盐井打捞工艺技术历史悠久,是中国古代钻井技术体系修治井技术中的一个重要组成部分,是处理井下事故的一项关键技术。