VICTORIA A. UMEJURU; ISAAC E. IHUA-MADUENYI; ADAOBI S. NWOSI-ANELE. Performance Evaluation and Economic Assessment of Electrical Submersible Pumps for Heavy Oil Production in Mature Niger Delta Oilfields. FUDMA Journal of Engineering and Technology, [S. l.], v. 2, n. 1, p. 500–516, 2026. DOI: 10.33003/pgc94k49. Disponível em: https://fjet.fudutsinma.edu.ng/index.php/fjet/article/view/152. Acesso em: 14 jun. 2026.