Idea of Pollution-Free Underwater Oil Storage Technology and Test of Crude Oil Underwater Thermal Insulation

Pollution-free underwater oil storage model is raised, realizing zero-pollution underwater oil storage with oil-water replacement through flexible separation method to prevent crude oil from directly contacting seawater. Experiment on thermal insulation of underwater crude oil with separate replacement of oil and water was made, proving that high pour point crude oil does not change significantly within a time and still possesses a good liquidity. Therefore, it is feasible to apply this underwater oil storage system to the storage of high pour point crude oil.