8 results ·
● Live web index
S
sciencedirect.com
article
https://www.sciencedirect.com/science/article/pii/S2772656825000995
# Review Unlocking the potential of CO2 storage in saline aquifers: Challenges, knowledge gaps, and future directions for large-scale storage. Saline aquifers represent a significant geological option for large-scale CO2 storage through CO2 solubilization in brine and subsequent geochemical interactions that facilitate mineralization. This review assesses advancements in experimental and modelling efforts regarding CO2 solubilization in saline aquifers, considering natural convection, diffusion, and dispersion factors. It also investigates the application of nanobubble technology to enhance storage capacity and stability, along with various technologies that could be utilized for its generation. Our findings indicate that optimizing brine chemistry and harnessing nanobubble technology could augment storage capacity and security. Furthermore, careful selection of injection sites, CO2 injectivity, and the security of injected CO2 are factors that must be addressed to unlock the storage potential of saline aquifers. Moreover, enhanced modelling approaches are required to reflect aquifer heterogeneity, which continues to pose a significant challenge in accurately modelling the long-term behaviour of CO2 in saline aquifers.
D
digital.library.unt.edu
research
https://digital.library.unt.edu/ark:/67531/metadc899531/m2/1/high_res_d/94443…
Large volumes of CO2 captured from carbon emitters (such as coal-fired power plants) may be stored in deep saline aquifers as a means of mitigating climate
L
livrepository.liverpool.ac.uk
article
https://livrepository.liverpool.ac.uk/3182037/1/Worden%202024%20Geosciences%2…
Keywords: global heating; energy transition; saline aquifers; depleted gas fields; carbon dioxide; sequestration; carbon capture and storage; fluid pressure; monitoring; CO2 leakage-risk Geosciences 2024, 14, 146. Based on available data published so far, this paper seeks to compare saline aquifers and depleted gas fields as geological sites for CO2 disposal and address the following issues: • Pressure evolution, CO2 trapping mechanism, and storage capacity; • Fluids present in the reservoir before CO2 injection, relative permeability, and injectiv-ity; • Stress evolution pathways, risk of failure, and fluid pressure management; • Risk of halite-scale and limitations to injection rate; • Relative likelihood of rock property-altering chemical reactions in the reservoir; • Risk factors, especially geomechanical and geochemical, linked to the possible leakage of CO2; • Optimum monitoring strategies.
R
researchgate.net
research
https://www.researchgate.net/publication/239385665_CO2Storage_in_Saline_Aquifers
Saline aquifers represent a promising way for CO2 sequestration. Storage capacities of saline aquifers are very important around the world.
S
sciencedirect.com
article
https://www.sciencedirect.com/science/article/abs/pii/S0016236124008925
# Review article A review of carbon storage in saline aquifers: Mechanisms, prerequisites, and key considerations. This work reviews the studies addressing the active trapping mechanisms, requirements and key aspects related to CO2 storage in saline aquifers. Based on the findings, to enhance injectivity and storage in narrow, low-permeability saline aquifers, hydraulic fracturing is advised, while acknowledging the potential storage efficiency improvement offered by heterogeneity in rock formations. As we delved into the existing literature (Table 3) for this review, it became evident that while saline formations boast immense availability and capacity for CO2 storage, the specialized nature of this field demands a more comprehensive investigation into its mechanisms and affecting factors. In the following sections, we delve deeper into the mechanisms underlying CO2 trapping in saline aquifers explore the prerequisites necessary for a safe storage to occur and analyze the potential implications of important factors on the long-term carbon storage in these types of geological formation. ### Residual water formation during the storage process in deep saline aquifers and factors influencing it: a review.
M
mdpi.com
article
https://www.mdpi.com/2076-3263/14/6/146
Saline aquifers tend to have a relatively limited ability to fill pores with CO2 (i.e., low storage efficiency factors between 2 and 20%) as the injected CO2 is
E
epa.gov
official
https://www.epa.gov/system/files/documents/2025-01/deepsalineformation_rtc_ja…
Sequestration Partnerships (RCSP), identifies the remaining challenges in achieving large-scale carbon sequestration, and creates a roadmap for carbon storage,.
S
sccs.stanford.edu
research
https://sccs.stanford.edu/sites/g/files/sbiybj17761/files/media/file/criteria…
Kovscek a,c a Stanford University, Energy Science and Engineering, Stanford, CA 94305, USA b Stanford University, Department of Geophysics, Stanford, CA 94305, USA c Stanford University, Stanford Center for Carbon Storage, Stanford, CA 94305, USA d ExxonMobil Technology and Engineering Company, Spring, TX 77389 USA A R T I C L E I N F O Keywords: Carbon dioxide storage CCS Site selection Screening parameters Scoring system A B S T R A C T Carbon capture and storage (CCS) is an essential greenhouse gas mitigation strategy. The workflow and algorithm utilize generally available data such as public databases, geological surveys, and storage atlases (e.g., NETL, 2015; Norwegian Petroleum Directorate, 2014); however, some seismic lines and well logs are needed to evaluate sites in stage 2, site screening and ranking.