Study on the characteristics of Upper Paleozoic reservoirs in Ordos Basin: a case study of He 8 reservoir in Zichangdong area. - Liu, Shuai; Li, Fukang; Zhao, Qianping; Zhang, Yi; Liu, Xing; Sun, Jianbo; Liu, Gang; Shi, Peng; Zhang, Jianfeng; Zhu, Gengbolun; Qi, Panwen; Wang, Hui (Journal of Petroleum Exploration & Production Technology, 2025)