Study on Effect Evaluation Method of Weak Gel Flooding Control in Ordinary Heavy Oil ReservoirsFachao Shan, Lun Zhao, Anzhu Xu, Bing Bo, Gang Ma, Xuanran Li and Song ChenE3S Web Conf., 213 (2020) 02020DOI: https://doi.org/10.1051/e3sconf/202021302020