Research on Carbon Emission Accounting Methodology for Surface Engineering of Chemical Flooding in Oilfields

• Published in: Journal of physics. Conference series Vol. 3095; no. 1; p. 012035
• Main Authors: Qiao, Ming, Li, Gang, Zhou, Lifeng, Wang, Ning, Dong, Linlin
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.08.2025
• Subjects: Carbon; Electric power demand; Electricity consumption; Emissions; Enhanced oil recovery; Oil fields; Process parameters; Renewable energy sources
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/3095/1/012035

Chemical flooding is a key enhanced oil recovery (EOR) technique for tertiary oil recovery in mature oilfields. To achieve carbon emission reduction in chemical flooding surface operations, a comprehensive carbon emission accounting framework must be established, and practical emission reduction measures must be proposed. This study takes the chemical flooding surface operations of an oilfield as its research subject. A complete carbon emission accounting method for chemical flooding surface engineering was developed, and the carbon emissions were quantified and analyzed in terms of their composition and proportions. The results indicate that the carbon emission intensity associated with producing one tonne of oil in chemical flooding surface operations was 151.71 kgCO2eq. Notably, indirect carbon emissions account for 90.01% of the total, with electricity consumption contributing 88.57% of these indirect emissions, identifying it as the primary source of carbon emissions in chemical flooding operations. Given the high electricity demand of chemical flooding surface engineering, emission reduction measures are proposed, including the use of high-efficiency equipment and motors, the adoption of multi-unit and low-flow-rate configurations, the optimization of key process parameters, and the integration of renewable energy sources with chemical flooding operations.