TY JOUR TI Technologies for oil recovery increasing in the fields of the Northern Caspian Sea KW hard-to-recover reserves KW oil KW silicate bacteria KW enhanced oil recovery KW reservoir microflora KW shelf fields JO Oil and gas technologies and environmental safety AU Samatoeva, D.. AU Vybornova, T.. PY 2023 IS 2023 PB Astrakhan State Technical University