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Supercritical CO2 sequestration and enhanced gas recovery in tight gas reservoirs: Feasibility and factors that influence efficiency

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Feb 2021 Germany Publisher:Elsevier BVJournal:International Journal of Greenhouse Gas Control, volume 105, page 103,234 (issn: 1750-5836,

Authors: Yongming He; Jingchen Ding; Jingchen Ding; Changhui Yan; Changcheng Wang;

doi: 10.1016/j.ijggc.2020.103234

Supercritical CO2 sequestration and enhanced gas recovery in tight gas reservoirs: Feasibility and factors that influence efficiency

- Summary

Abstract

Abstract Tight gas reservoirs always have a low natural gas recovery because of the poor reservoir properties. Effective means on achieving enhanced gas recovery (EGR) in this type of reservoir remain a challenging task. In this study, experimental investigations on supercritical carbon dioxide (SCCO2) sequestration and EGR in tight gas reservoirs were presented. Results of phase behavior testing revealed that the adsorption capacity of SCCO2 in tight sandstone is more than 50 % higher than that of natural gas in tight sandstone, and the diffusion coefficient of SCCO2 in natural gas is too low (

Country

Germany

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