TY JOUR TI A study of the technology of acoustic-chemical impact on various horizons of the reservoir to intensify oil production using the example of the Verblyuzhye field in the Astrakhan region KW acoustic-chemical impact KW increased permeability KW decreased oil viscosity KW well productivity KW heterogeneity of reservoir properties JO Oil and gas technologies and environmental safety AU Egorova, E.. AU Olennikov, V.. PY 2025 IS 2025 PB Astrakhan State Technical University