ASSOCIATED PETROLEUM GAS UTILISATION METHOD Russian patent published in 2013 - IPC C10G7/04 C10G33/00 C10L3/00 B01F3/00 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to utilisation process of associated petroleum gas in gas hydrate form with simultaneous separation of oil and water and can be used in oil producing and oil refining industries and in power engineering. The invention refers to utilisation method of associated petroleum gas by its conversion to gas hydrate in oil-water emulsion, in which oil-water emulsion with volumetric water content of 75% is exposed at the temperature of -4°C to prevent separation of the emulsion, supplied to the reactor that has been pre-cooled to -5°C, together with associated petroleum gas, heated in the reactor to the temperature in the range of 1°C to 3°C with further quick temperature decrease (during 30 minutes) in the reactor to -10°C at the pressure of 4.3 atmospheres, at which growth of gas hydrate in the emulsion takes place, which is followed by displacement effect of the formed gas hydrate to the surface of dehydrated oil; at that, volumetric water content in the emulsion is decreased from 75% to less than 5%.

EFFECT: effective gas utilisation and effective oil dehydration, as well as reduction of operating and capital costs.

1 dwg, 1 tbl