Mixed oil control and solution of mountain product oil pipeline Jian Yang, Chao Ruan, Shan Chen, Ruiyun Zhang, Jiannan Zheng, Zhongyang Liu and Zhigang Yang E3S Web Conf., 522 (2024) 01022 Published online: 07 May 2024 DOI: 10.1051/e3sconf/202452201022