GAS-EXHAUSTING AND FROTH-FORMING COMPOSITION FOR INTENSIFICATION OF OIL AND GAS OUTPUT PROCESSES Russian patent published in 1995 - IPC

FIELD: oil and gas industry. SUBSTANCE: composition has, wt.-% urea 1-13; alkaline or alkaline-earth metal nitrite 4.6-59.7; surface-active substance 0.1-1.5; hydrazine or its derivatives 0-37.4; ammonium
hydrodifluoride 0-24.6; carboxymethylcellulose or polyacrylamide 0.1-1.5, and water the rest. Addition of water-soluble polymeric compound promotes foam quality and flotation properties, ensures to use froth-forming composition as cylindric briquets. EFFECT: increased yield of gaseous product, enhanced foam and flotation properties of polymeric compound. 3 cl, 5 tbl