AEROGEN COMPOSITION FOR WATER REMOVING AND DEVELOPMENT OF GASSERS, NATURAL GAS AND OIL WELLS Russian patent published in 2008 - IPC C09K8/52 C09K8/94 

FIELD: mining; chemistry.

SUBSTANCE: invention concerns compositions for well treatment including absorbing, for gas generating and depression influence in well at wells underground maintenance implementation, treatment of wells critical area of formation for tributary activation from stratum and other works. It can be used in gas-and-oil producing industry in conditions of normal and low strata pressures. Composition for water removing and well development contains % wt.: sodium 49.5-54.7, carbamide 10.7-11.9, sulfanic acid 34.8-38.4. At that in preference it contains, % wt: sodium nitrite - 52.1, carbamide - 11.3, sulfanic acid - 36.6, additionally foam former and foam stabiliser or corrosion inhibitor in number not more then mass of sodium nitrite, carbamide and sulfanic acid mixture, additionally water or liquid glass.

EFFECT: increase of reagent mixture outgassing ability; absence insoluble in water substances reaction among products; low portion among gaseous products reaction of carbonic acid; full consumption of initial reagents; preservation of acid-base balance and absence among products reaction of acid corrosion-dangerous substances.

4 cl, 6 ex, 3 tbl, 2 dwg