Hong-Yan Yu

High-Resolution Lithofacies Identification in Volcanically Influenced Lacustrine Shales: A Case Study of the Chang 73 Sub-Member, Yanchang Formation, East Gansu Area, Ordos Basin

Lithofacies identification in the Chang 73 Sub-Member is challenged by tephra input and thin interbeds, which distort conventional well logging responses and increase vertical heterogeneity. Consequently, classification based directly on conventional well logs is often unreliable for fine-scale reservoir characteriza...