Integrated Lithofacies, Well-Log, and Seismic Identification and Sedimentary Evolution of Local Intraplatform Reef–Shoal Bodies in the Changxing Formation, Pengxi–Wusheng Area, Sichuan Basin
Studies of Upper Permian Changxing Formation reef–shoal bodies in the Sichuan Basin have mainly focused on platform-margin belts along the Kaijiang–Liangping trough. The sequence position, diagnostic criteria, and spatial configuration of local intraplatform high-energy bodies remain insufficiently constrained. Using W...