Water inrush cause and resource exploitation in a salt exploration well in the Zhaoji Sub-sag,Hongze Sag
There are abundant rock salt mine resources extracted for more than three decades in Zhaoji sub-sag of Hongze sag.On February 21,2019,water inrush occurred in the TY1 exploration hole in the northwest of Zhaoji sub-sag,with high water head,large water volume and long duration.It is concluded that water surge has been caused by strong turbulent flow based on comprehensive anal-ysis of water surge characteristics,water surge layer lithology,rock salt production in the mining area and comparison with features of other water surge wells.For the first time,it is suggested that the secondary crack initiated by salt mining in the region is an important cause of water surge with turbulent flow in this well.For protection and utilization of salt mines and salt cavern in Huai'an,the sugges-tions of unified planning,strict supervision and scientific exploitation of regional salt mine are put forward.
salt minewater inrush of salt wellsecondary crackHongze sagZhaoji sub-sag
NETL
NSTL
万方数据
