Control of the thermal processes in an oil well with a heating cable

Abstract

This paper presents a two-dimensional model and numerical analysis of heat- and mass-transfer processes in an oil well. The proposed and implemented mathematical model of the process allows analyzing the temperature field in the total space of the well and is suitable for any deposits equipped with an electric centrifugal pump. The temperature and velocity fields and the distribution of the temperature and thickness of the paraffin deposits on the walls of the pump-and-compressor tubes along the depth of the well are obtained. Based on the obtained temperature fields, the modes of the periodic warming up of the well using the heating cable are worked out. The recommendations on the choice of the power and time of warming up of the well are presented. A case is considered in which a paraffin deposit can be formed with subsequent removal.