During fifty years period of exploitation of Polazna (Western Urals) oil deposit lens of oil was formed on the surface…
During 50-year period of exploitation of Polazna oil deposit (Western Urals) an oil lens was formed on the surface of…
During fifty years period of exploitation of Polazna (Western Urals) oil deposit lens of oil was formed on the surface…
During 50-year period of exploitation of Polazna oil deposit (Western Urals) an oil lens was formed on the surface of…