TY JOUR TI Theoretical aspects of principles of analyzing jet pumping stations and methods of their improving KW oil well KW liquid media KW petroleum production KW jet pumping station KW hardware downhole support KW nozzle KW packer JO Oil and gas technologies and environmental safety AU Aleksanyan, I.. AU Nugmanov, A.. AU Pokoptsev, A.. PY 2023 IS PB Astrakhan State Technical University