SELF-REGULATION METHOD WITHIN PRESET LIMITS FOR SEPARATING OF GAS-OIL AND OIL-WATER PHASES IN SEALED FLOWING WATER TANKS AT CHANGING PHASE PARAMETERS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2015 - IPC E21B43/34 B01D21/34 

FIELD: oil and gas industry.

SUBSTANCE: self-regulation method within preset limits for separating of gas-oil and oil-water phases in sealed flowing water tanks at changing phase parameters is characterised by the fact that phase interfaces are fixed by constructions at the preset levels and they cannot be changed essentially in height at change in parameters as to the height of the respective preset level of gas-oil phase separating the oil overflow tube is mounted and the above tube guides dehydrated oil to oil discharge chamber equipped with a float valve opening the oil pipeline when oil is delivered and closing the oil pipeline when oil is unavailable, at that the upper oil level in a sealed flowing water tank is regulated by height of the oil overflow tube, from the lower part of the sealed flowing water tank from zone placed below the preset level of oil-water phase separating settled water is supplied through water overflow pipe to water discharge chamber equipped with a float valve opening the drain pipeline when settled water is delivered and closing the drain pipeline when settled water is unavailable, at that water level in the sealed water flowing tank is regulated by height of water overflow tube thus forming hydraulic seal, and gas coming from the sealed water flowing tank is supplied to gas pipeline placed above the level of gas-oil phase separating through gas regulating valve, which maintains the preset gas pressure in the sealed water flowing tank, oil discharge chamber and water discharge chamber.

EFFECT: increased reliability and quality of separation.

3 cl, 2 dwg