TY JOUR TI Problems of asphalt-resin-paraffin deposits depth assessing in oil transportation pipeline systems KW asphalt-resin-paraffin deposits KW paraffin products KW oil pipeline KW ultrasonic method KW thermal method KW complexing KW height measurement KW redundancy JO Oil and gas technologies and environmental safety AU Dymov, A.. AU Marinin, S.. AU Pokoptsev, A.. AU Nugmanov, A.. AU Aleksanyan, I.. PY 2023 IS 2023 PB Astrakhan State Technical University