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Downhole electric heater with high heating efficiency for oil shale exploitation based on a double-shell structure

Wang, Zhendong; Lü, Xiaoshu; Li, Qiang; Sun, Youhong; Wang, Yuan; Deng, Sunhua; Guo, Wei (Elsevier, 15.11.2020)
article

To improve the heating efficiency of the downhole electric heaters used in oil shale exploitation, double-shell downhole electric heaters with continuous helical baffles (DS-DEHs) were developed in this study. These heaters ...