Research on the Temperature Distribution in Electrically Heated Offshore Heavy Oil Wellbores

Suogui Shang, Kechao Gao, Xinghua Zhang, Qibin Zhao, Guangfeng Chen, Liang Tao, Bin Song, Hongxing Yuan and Yonghai Gao ()
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Suogui Shang: Tianjin Branch of CNOOC (China), Ltd., Tianjin 300459, China
Kechao Gao: Tianjin Branch of CNOOC (China), Ltd., Tianjin 300459, China
Xinghua Zhang: Tianjin Branch of CNOOC (China), Ltd., Tianjin 300459, China
Qibin Zhao: CNOOC (China) Ltd., Beijing 100010, China
Guangfeng Chen: Tianjin Branch of CNOOC (China), Ltd., Tianjin 300459, China
Liang Tao: COSL-EXPRO Testing Services (Tianjin) Co., Ltd., Tianjin 300457, China
Bin Song: COSL-EXPRO Testing Services (Tianjin) Co., Ltd., Tianjin 300457, China
Hongxing Yuan: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China
Yonghai Gao: School of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China

Energies, 2024, vol. 17, issue 5, 1-16

Abstract: The electric heating process for lifting heavy oil has been widely applied. However, research on its temperature field laws mostly focuses on onshore heavy oil wells, while research offshore is limited. Therefore, based on the energy conservation equation and heat transfer theory, a transient one-dimensional wellbore temperature model coupled with the temperature and viscosity of heavy oil and considering the effect of time was developed. In order to verify the accuracy of the model, the results of the previous model were used for comparison with the present model, and the results showed that the model has good accuracy. The results show that a reasonable selection of the process parameters of electric heating can increase the production of heavy oil while saving development costs and improving the economic benefits of the oilfield. The conclusions and recommendations of this paper can provide a theoretical basis and guiding suggestions for the optimal design of process parameters for lifting heavy oil using an offshore electric heating process.

Keywords: electrically heated; temperature distribution; offshore; heavy oil; process parameter (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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