METHOD FOR REDUCTION OF SAND INGRESS IN GAS WELLS Russian patent published in 2019 - IPC E21B43/22 C09K8/565 C09K8/575 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to gas industry and can be used for reduction of sand removal in gas wells in initial period of operation. Method of sand ingress reduction in gas wells, where first an anhydrous liquid is pumped on a polymer base containing a BMA-5 copolymer in amount of 9–14 wt% and a B solvent in amount of 86–91 wt%, followed by pumping buffer liquid – gas stable gas condensate, and then pumped preliminary prepared aqueous zinc stearate emulsion with density of not more than 1,050 kg/m³ and further performing process exposure for 24 hours.

EFFECT: increased efficiency of the method for reduction of sand ingress in gas wells with provision of minimum reduction of permeability loss, increased efficiency of well operation due to extension of its operation period, as well as simplification and cheapening of the method by avoiding the use of expensive reagents and shorter time.

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