Work

Performance Evaluation of Enhanced Oil Recovery by Host–Guest Interaction of β-Cyclodextrin Polymer/Hydrophobically Associative Polymer

Year: 2024

Type: article

Abstract: In this work, a hydrophobically associative polymer (HAP) was mixed with β-cyclodextrin and epichlorohydrin polycondensate (β-CDP) in an aqueous solution to enhance the intermolecular interaction through host-guest inclusion between hydrophobes and cyclodextrins. Results showed that the host-guest interaction improved the thickening ability and viscoelasticity of the HAP solution and maintained its shear thinning behavior. The host-guest inclusion system demonstrated special viscosity-temperature curves and variable activation energy. Enhanced oil recovery (EOR) performance tests showed that the oil increment produced by the host-guest inclusion system was 5.5% and 9.3% higher than that produced by the HAP and the partially hydrolyzed polyacrylamide solution, respectively. Compared with pure HAP, β-CDP/HAP has a better comprehensive performance and is more attractive for EOR in high-temperature reservoirs.

Source: Molecules

DOI: 10.3390/molecules30010109

Authors: Xi Li, Zhongbing Ye, Pingya Luo

Institutions: Southwest Petroleum University, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu Technological University

Language: English

Topic: Enhanced Oil Recovery Techniques

Subfield: Ocean Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,069

Funders: Southwest Petroleum University, State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation