COMPOSITION FOR INTENSIFICATION OF HYDROCARBON FLUID INFLUX FROM PORE-CRACKED CARBONATE RESERVOIR Russian patent published in 2018 - IPC C09K8/74 

FIELD: chemistry.

SUBSTANCE: invention relates to the field of compositions for intensifying the influx of hydrocarbon fluid from a pore-cracked carbonate reservoir of high power. Composition for intensifying the influx of hydrocarbon fluid from the pore-cracked carbonate reservoir is a non-polymer thickened acidic composition, includes hydrochloric acid with the target additives: non-polymer gelling agent based on surfactant, inhibitor of foaming on an inorganic base, and mechanical deflector based on self-degradable fibers constituting a polyglycolic and lactic acid copolymer with the following component ratio, % by weight: hydrochloric acid 12–24; said gelling component 1–10; said foaming inhibitor is 0.1–1; said mechanical deflector 0.1–2; water the rest.

EFFECT: increase in the efficiency of work to intensify the inflow due to a temporary blockage of the fracture component and the direction of the acid into less permeable, not drained parts of the formation.

1 cl, 3 dwg, 1 tbl, 1 ex