Permeability Characterization and Its Correlation with Pore Microstructure of Stress-Sensitive Tight Sandstone: Take Chang 6 in Ordos Basin for Example

• Published in: Geofluids Vol. 2022; pp. 1 - 16
• Main Authors: Chang, Yilin, Yang, Zhengming, Zhang, Yapu, Niu, Zhongkun, Chen, Xinliang
• Format: Journal Article
• Language: English
• Published: Chichester Hindawi 12.12.2022; John Wiley & Sons, Inc; Wiley
• Subjects: Compression; Crude oil; Cyclic loading; Cyclic loads; Damage; Deformation; Gas production; High temperature; Load distribution; Loading rate; Membrane permeability; Microstructure; Natural gas; NMR; Nuclear magnetic resonance; Oil and gas production; Permeability; Physical simulation; Pore size; Pressure; Repeated loading; Rocks; Salinity; Sandstone; Sedimentary rocks; Seepage; Working conditions; China; Ordos Basin

Tight reservoirs are sensitive to stress changes during fracturing and oil and gas production. Facing different production modes, the variation characteristics of rock permeability and pore structure need to be further clarified. In this study, using a self-built high temperature and pressure physic...