Analyzing the Origin of Low Resistivity in Gas-Bearing Tight Sandstone Reservoir

• Published in: Geofluids Vol. 2021; pp. 1 - 15
• Main Authors: Jiang, Yanjiao, Zhou, Jian, Fu, Xiaofei, Cui, Likai, Fang, Chao, Cui, Jiangman
• Format: Journal Article
• Language: English
• Published: Chichester Hindawi 2021; John Wiley & Sons, Inc; Wiley
• Subjects: Analysis; Clay minerals; Conductivity; Core analysis; Drilling; Driving conditions; Electric properties; Electrical resistivity; Grain size; Lead; Lithofacies; Lithology; Logging; Mathematical models; Minerals; Mud; Numerical analysis; Numerical simulations; Permeability; Physical properties; Pyrite; Reservoirs; Sandstone; Saturation; Sedimentary rocks

Complex characteristics exist in the resistivity response of Gs reservoirs in the central inversion belt of the Xihu Sag, East China Sea Basin. Some drilling wells have confirmed the existence of abnormally low resistivity in gas reservoirs of the area; and the electrical logging response was unable...