Vol. 19 No. 1 (2026): January
Cover image by Zhaohui Lu on pages 1–13. The image illustrates how injected CO2 migrates through the fracture–matrix system in normal-pressure marine shale gas reservoirs, displacing adsorbed CH4 via competitive adsorption while achieving geological storage. Through integration of experiments, numerical simulation, and China’s first pilot test, the study identifies optimal operational parameters for CO2 huff and puff, offering a robust basis for enhancing recovery in depleted normal-pressure shale gas wells.
Published:
2026-01-25