METHOD FOR DESTRUCTION OF FOAM DURING GRAVITY SEPARATION OF GAS-LIQUID MIXTURE AND DEVICE THEREFOR Russian patent published in 2016 - IPC B01D19/02 

FIELD: oil and gas industry.

SUBSTANCE: invention is intended, in particular, for destruction of foam with possibility to provide flow measurement of quantity and quality parameters of borehole fluid. Method of destruction of foam in process of gravity separation of gas-liquid mixture is supply of gas-liquid mixture in mixture receiving zone of reservoir, free flowing of gas-liquid mixture in settling zone, removal from fluid separator reservoir and free gas, released from gas-liquid mixture and destructed foam. In vessel mixture receiving zone created wall drop flow of degassed fluid forced extracted with liquid separator outlet and inlet gas-liquid mixture is open pipe placed in middle of mixture receiving zone. Formed foam is carried over flow of gas-liquid mixture at partition to contact with wall-adjacent flow of degassed fluid, foam bubbles mainly damaged wall-adjacent flow, and further destruction of foam in settling zone, where fluid and residual foam flow through annular gap, and vacant gas is removed from upper part of vessel outside separator. Separator comprises vessel for gravity separation of gas-liquid mixture, partition installed in reservoir between mixture receiving and settling zones with annular gap along wall, branch pipe to feed gas-liquid mixture into separator placed over partition. In case of mixture receiving part are installed tangentially to its wall degassed fluid feed unions, pumped with fluid outlet of separator in its mixture receiving zone through pipeline of return circuit. In partition separating settling area from mixture receiving one are tubular channels free gas removal from settling zone in mixture receiving zone as foam bubbles.

EFFECT: invention allows to activate destruction of foam formed in mixture receiving zone of reservoir, increases efficiency of separation process and improving operating conditions control-measuring equipment.

2 cl, 2 dwg