Journal of Petroleum & Environmental Biotechnology

Abstract

Experimental Methods and Progress of CO₂-Brine-Rock Interactions for CO₂ Storage in Saline Aquifers

Qian Chen, Jian Hou*, Bei Wei, Jiahe Sun and Qingjun Du

The greenhouse effect caused by excessive CO₂ emissions is a great challenge facing the world, and CO₂ geological storage in saline aquifers is an effective way to solve this problem because of its great storage potential. The injection of CO₂ into saline aquifers interacts with brine and rock, leading to complex physical and chemical reactions, which have a direct impact on the safety of CO₂ storage. This review synthesizes findings from recent researches, particularly focusing on experimental studies of CO₂-brine-rock interactions. Through a detailed review of both static dissolution and dynamic flow experiments, CO₂-brine-rock interaction mechanisms and the influence of fluid/rock interactions on properties of brine and rock are elucidated. Meanwhile, this review points out that innovative experimental methods are needed in future research to improve the accuracy of measuring parameters. It is also recommended to conduct CO₂-brine-rock interaction experiments under in situ conditions in the reservoir on a long-time scale, which will improve the accuracy and reliability of parameters for subsequent seepage simulations.

Published Date: 2025-04-19; Received Date: 2024-08-23