Saline aquifer storage for crude oil processing, product quality and equipment etc cause great harm , mainly: ( 1 ) increase the storage , processing equipment ( such as tanks , tankers or pipelines , pumps , distillation columns , furnace , cold for the equipment, etc. ) of the load , increasing the power , energy and cooling water consumption. For example an annual handling capacity of 2.5 million tons of atmospheric and vacuum distillation unit , if the water content of crude food dehydrator by 1% , the thermal energy consumption will increase by approximately 7000MJ / h. ( 2 ) affecting the normal operation of atmospheric and vacuum distillation . Excessive moisture oil , water gasification , gas volume increase , resulting in the distillation column pressure drop increases , the gas velocity is too large , easy to cause the accident rushed tower and other oil processing. ( 3 ) salts in crude oil , as the evaporation of water , salt and the furnace wall of the heat exchanger is formed salt, dirt , reduce the heat transfer efficiency and increases the flow resistance , leading to serious clogging pipes , burn off wall , causing the accident. ( 4 ) corrosion of equipment , reduce operating cycle. CaCl2 and MgCl2 to hydrolysis with a strong corrosive HCl, especially in the presence of water in the cryogenic equipment part , the formation of hydrochloric acid , corrosion of more serious.