Multi-field coupling of aquifer energy storage

What is the coupling relationship for CO2 storage in saline aquifers?

The THM coupling relationship for CO 2 storage in saline aquifers, illustrated in Fig. 1, excludes the effects of CO 2 dissolution and mineralization on temperature, stress, and flow. It also omits changes in saturation during the two-phase flow of water and gas during CO 2 injection.

Does multifield full coupling effect of dissolution and mineralization affect CO2 storage?

Therefore, in recent years, many study achievements focus on the research of coupled THMC calculation model. Unfortunately, the multifield full coupling effect of dissolution and mineralization of long-term CO 2 storage in saline sandstone reservoir is not considered in this study.

How does mineralization affect the sequestration of CO2 in saline aquifers?

In addition, carbonate minerals generated by mineralization during the long-term sequestration of CO 2 injected into saline aquifers reservoirs will fill and plug the pores and fissures of saline aquifers reservoirs, resulting in reduced injectability and sequestration of CO 2.

How is CO2 storage capacity determined in a Fu 1# injection well?

The CO 2 storage capacity and potential of the Fu 1# injection well are determined by continuous injection of CO 2 into the storage formation, without considering CO 2 leakage at the interface between the fault structure and the storage formation, as shown in Fig. 12.