Thermodynamic method for controlling paraffin deposits thickness in oil pipelines dewaxing systems
UDC: 620.179.142.5
DOI: -
Authors:
NESHETAEV MIKHAIL T.
1,
FETISOV VLADIMIR S.2,
ERMOLAEV ANDREY N.3
1 Ufa State Petroleum Technological University, Ufa, Russia
2 Ufa University of Science and Technology, Ufa, Russia
3 "Exiton-Automatics" Scientific and Production Company, Ufa, Russia
Keywords: oil pipeline, paraffin deposits, dewaxing, heater, induction heating, heat transfer, thermal sensor, monitoring
Annotation:
Various implementations of thermodynamic method that is applied for measuring thickness of paraffin deposits in oil pipelines are described. The method is based on temperature changes registration in places close to heaters by means of thermal sensors installed on the pipe surface. The temperature changes are registered for both heating and cooling phases. The paraffin layer acts as a heat transfer moderator between steel pipe and fluid flow as the temperature dynamics depend on the layer thickness. A scheme of developing an electro-thermal dewaxing system based on induction heaters is proposed. The heaters in this system, in addition to their main function, also serve as elements of the measuring subsystem together with the thermal sensors.
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