Analysis of uneven density of oil-based drilling fluid caused by shale respirationXiaoxiao Ni, Jian Li, Jianhua Wang, Haijun Yang, Rentong Liu, He Shi, Lili Yan, Shan Gao, Xiaofei Wang and Die ZhangE3S Web Conf., 560 (2024) 01021DOI: https://doi.org/10.1051/e3sconf/202456001021