METHOD OF EXTINGUISHING BURNING FOUNTAINS ON GAS, CRUDE OIL AND GAS-OIL WELLS AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC E21B35/00 A62C2/00 A62C35/02 

FIELD: fire safety.

SUBSTANCE: method of extinguishing burning fountains on gas, crude oil and gas-oil wells comprises feeding to the seat of fire of gas-dispersed composition. And the said composition is prepared by mixing the gas phlegmatiser and liquid and/or dispersed flame retardant in the vessel under pressure of 1-12 MPa at a ratio of gas phlegmatiser and the flame retardant in a ratio of from 1:3 to 1:1, followed by feeding the obtained gas-dispersed mixture of the above vessel through the main pipeline to the slit-like convergent sprayer. And the sprayer is mounted at the calculated distance from the wellhead, providing breakdown of a burning torch. The device comprises a sealed container with the chemical inhibitor, a balloon gas source connected with the cavity of the said container with the tubular aerator providing injection of the extinguishing agent through the start-locking device and the main pipeline. The pipeline is connected through the membrane, mechanical or electrical valve with a nozzle sprayer. And the nozzle is made in the form of a slit-like confuser with an angle of convergence of the generants in the vertical plane defined by a given mathematical expression.

EFFECT: improving the efficiency of fire-extinguishing and safety of use of the device, reducing the labour intensity of maintenance.

5 cl, 5 dwg