Synergistic improvement of CH4 recovery and CO2 sequestration via CH4/CO2 replacement assisted by optimizing stratigraphic mass transfer environment

[Display omitted] •CH4/CO2 replacement is strengthened by autogenic heat of CO2 hydrate formation.•Intensity of heat generation depends on mass transfer environment in the reservoir.•Mass transfer capacity of geofluid is optimized by introducing green promoters.•Nanofluid-enhanced water erosion assi...

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Bibliographic Details
Published in:Fuel (Guildford) 2025-04, Vol.385, p.134182, Article 134182
Main Authors: Wang, Tian, Fan, Ziyu, Zhang, Qian, Yang, Lei, Zhang, Lunxiang, Song, Yongchen
Format: Article
Language:English
Subjects:
CH4 recovery
CH4/CO2 replacement
CO2 sequestration
Mass transfer
Natural gas hydrates
Self-generated heat
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