Research and application of low oil-water ratio organoclay-free oil-based drilling fluid technologyHe Shi, Xiaoxiao Ni, Xiaofei Wang, Zheng Yang, Jianhua Wang, Rongchao Cheng, Lili Yan, Jiaqi Zhang, Haijun Yang, Xiaobo Cui and Lining ZhangE3S Web Conf., 560 (2024) 01016DOI: https://doi.org/10.1051/e3sconf/202456001016