Organic and inorganic pore networks in medium- to low-maturity shale: Insights from SEM analysis of Shahejie Formation in the Dongying Sag. - Lin, Zi-Zhi; Hu, Qin-Hong; Yin, Na; Du, Yu-Shan; Chao, Jing; Zhang, Guang-Lei; Wu, Song-Tao (Petroleum Science (KeAi Communications Co.), 2026)