Optimization of drilling parameters based on Copula function method for the Chepai areaYingbiao Liu, Linzhuang Xing, Zhitao Xie, Chaofei Wang, Zhongxi Zhu and Chong ChenE3S Web Conf., 466 (2023) 02007DOI: https://doi.org/10.1051/e3sconf/202346602007