Study on Water Quality of Water Curtain System for Oil Storage Cavern in Rock
Conditions for bacteria slime and scale formation
We studied on the causes of clogging in the water curtain system for oil storage cavern in rock. In the results of this study, we suggest the following important notices for recycling of the water curtain system.
1) Growth of microorganisms is stimulation by contamination of organic matter into groundwater. And formations of bacterial slim and scale are also enhancement by contamination of sea water into groundwater. Therefore it is important to introduce a RO (Reverse Osmosis) process after the waste water treatment process for recycling the water curtain system.
2) Bottom water in the oil storage cavern changes to alkaline by elution of mortar components which is used as inner lining of storage cavern, if water curtain system is stopped. Formation of scale is stimulated by alkaline water including groundwater or sea water. Therefore it is necessary to make neutral water by aeration before recycling the water.
||oil storage cavern, water curtain system, bacterial slime, scale, groundwater