Bubbling formation characteristics of methane hydrate in ice slurry

The storage and transportation of natural gas in the form of hydrate has the advantages of low storage pressure, safety and reliability, but the application of hydrate in the field of natural gas storage and transportation technology is hindered by low gas storage, low formation rate and other factors. In this paper, methane hydrate was taken as the research object. The effecting laws of pressure, temperature of constant temperature bath, mass concentration of surfactant SDS and intake time of methane on the bubbling formation of methane hydrate in ice slurry were studied by experiment. The pressure of the experiment is in the range of 4-6 MPa, the temperature of the constant temperature bath is between -1 ℃ and 1 ℃, and the mass concentration of surfactant SDS is in the range of 100-800 mg/L. It is shown that the pressure change has little effect on the ultimate gas storage molar volumetric density, the temperature of the constant temperature bath rises from -1 ℃ to 1 ℃, the reaction duration is shortened by 11.5%-17.4%, and the molar volumetric concentration of gas storage is reduced by 7.4%-8.5%. In addition, extending the intake time appropriately is conducive to shorten the induction time and increase the formation rate and ultimate gas storage molar volumetric concentration.