Targeting of Energy Consumption for SAGD Processes and Identification of Key Parameters

Mohammadi Hezaveh, Matineh; Tahouni, Nassim; Panjeshahi, M. Hassan

doi:10.22034/ijche.2025.513825.1512

Targeting of Energy Consumption for SAGD Processes and Identification of Key Parameters

Articles in Press

Document Type : Original Article

Authors

Matineh Mohammadi Hezaveh ¹

Nassim Tahouni ¹

M. Hassan Panjeshahi ²

¹ School of Chemical Engineering, College of Engineering, University of Tehran

² School of Chemical Engineering,, College of Engineering, University Of Tehran,

10.22034/ijche.2025.513825.1512

Abstract

Steam-assisted gravity drainage (SAGD) is the most common method for heavy oil extraction which has high energy consumption and carbon dioxide emissions. In this study, the optimal energy consumption for 6 SAGD processes has been targeted using pinch analysis. To ensure that the targeted results are achievable, the design of the heat exchanger network of unit 3 has been presented. The results showed that if the units are designed correctly, the required hot utility and energy consumption in the boiler are 7.3-13 and 4.5-10.6 % lower than the existing condition, respectively. Then, the effects of key parameters on the energy consumption of the process were investigated. The steam to oil ratio in the range of 1.5-7, the steam quality between 65-95 %, the steam injection temperature between 200-350 C, the water recovery rate between 65-95 %, and the emulsion temperature between 140-250°C were changed. Varying the steam to oil ratio had the most significant impact (100.94%) and changing the water recovery had the least effect (1.77%) on the optimal energy consumption of the process.

Keywords

Energy consumption

Bitumen

Pinch analysis

Sensitivity analysis

SAGD

Subjects