Yuan G, Shanguan Y, Wang M, Zhang J, Du Z. The Phase Behavior Study of Air-foam Flooding in Changqing Ultra-Low Permeability Reservoirs: DOI: 10.14800/IOGR.1198. Improv Oil Gas Recover [Internet]. 2022 Jan. 18 [cited 2024 Dec. 22];6. Available from: https://smartscitech.com/index.php/IOGR/article/view/1198