TY JOUR TI Mathematical description of the magnetohydrodynamic displacement principle of electrically conductive oily liquids KW magnetohydrodynamic principle KW physics of electromagnets KW electrically conductive liquid KW mathematical model JO Oil and gas technologies and environmental safety AU Aleksanyan, I.. AU Isanaliev, I.. AU Sultanov, R.. AU Konnova, O.. PY 2025 IS 2025 PB Astrakhan State Technical University