Mikael Erlström, Peter Dahlqvist, Jan-Erik Rosberg
{"title":"Characterization of the lower Palaeozoic regarding its CO2-storage potential in the Swedish sector of the Baltic Sea","authors":"Mikael Erlström, Peter Dahlqvist, Jan-Erik Rosberg","doi":"10.1016/j.ijggc.2026.104763","DOIUrl":"10.1016/j.ijggc.2026.104763","url":null,"abstract":"<div><div>Two cored boreholes were drilled in 2023 through the Cambro–Silurian succession on the southernmost part of the island of Gotland as part of a project coordinated by the Geological Survey of Sweden to assess the CO<sub>2</sub>-storage potential in the Cambrian sandstone reservoirs in the south Baltic Sea. The investigations were performed in cooperation with the Swedish national research infrastructure for scientific drilling “Riksriggen”. We describe and assess the drilling, geophysical wire-line logging, and stratigraphical, lithological, and petrophysical analysis of the Cambro–Silurian succession. The results are discussed with respect to the reservoir and sealing properties for CO<sub>2</sub>-storage. The results indicate that the Faludden sandstone, along with the overlying Ordovician and Silurian caprock interval meets the necessary requirements for CO<sub>2</sub>-storage. In contrast the Cambrian Viklau and När sandstone intervals display less favourable reservoir conditions due to high degree of cementation contributing to very low permeability. Formation integrity tests and laboratory analyses verify an Ordovician and Silurian caprock interval with high compressive strength and low permeability. This new information strengthens the judgement that CO<sub>2</sub> storage is feasible in the Swedish sector of the Baltic Sea.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"155 ","pages":"Article 104763"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Hongjin Yu, Yixuan Fang, Shiwei Wu, Ziyou Zhu, Huanxiang Gao, Quan Xie, Ranjith Pathegama Gamage, Zhaoyang Ma
{"title":"Mineral-controlled precipitation provenance dictates the mineral trapping-injectivity trade-off in sandstone CO2 storage","authors":"Hongjin Yu, Yixuan Fang, Shiwei Wu, Ziyou Zhu, Huanxiang Gao, Quan Xie, Ranjith Pathegama Gamage, Zhaoyang Ma","doi":"10.1016/j.ijggc.2026.104764","DOIUrl":"10.1016/j.ijggc.2026.104764","url":null,"abstract":"<div><div>Balancing mineral trapping with pore-network preservation remains a key challenge for CO<sub>2</sub> storage in deep saline sandstones. Here, we propose a precipitation-provenance framework to distinguish carbonate recycling from silicate- and clay-fed net carbonate formation. Two tight sandstones, a calcite-cemented red sandstone (RS<sub>1</sub>) and a plagioclase/chlorite-rich grey sandstone (GS<sub>1</sub>), were reacted with scCO<sub>2</sub>-brine at 120°C and 30 MPa. Image-registered ESEM-MapsMin automated mineralogy, CT-resolved 3D pore-network analysis, and ICP-OES brine chemistry were integrated to track coupled dissolution-precipitation from grain to core scale. RS<sub>1</sub> followed a carbonate-buffered recycling pathway, where calcite dissolution-reprecipitation and feldspar corrosion increased CT porosity from ∼2.0% to ∼5.5% but produced limited net mineral trapping. In contrast, GS<sub>1</sub> showed silicate-fed carbonate formation: plagioclase and chlorite supplied Ca-Mg-Fe, increasing MapsMin-derived calcite abundance from near-zero to ∼13 wt%, while pore-wall coatings and local throat restriction moderated pore growth. We further distinguish likely in situ pore-wall carbonates from depressurization-related carbonates and drying-derived halite to avoid overestimating reservoir-condition trapping. Together, these results provide mechanistic criteria for screening sandstone storage formations and for designing pressure-management strategies that maximize mineral trapping while limiting adverse pore-network feedbacks.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"155 ","pages":"Article 104764"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Screening of Austrian geological carbon and hydrogen storage options. Part I: Hydrocarbon fields","authors":"Jakob Kulich, Holger Ott","doi":"10.1016/j.ijggc.2026.104754","DOIUrl":"10.1016/j.ijggc.2026.104754","url":null,"abstract":"<div><div>The carbon capture and storage (CCS) potential in Austria remains to be elucidated as the country plans to lift its CO<sub>2</sub> storage ban and permit geologic storage for hard-to-abate emitters. This study presents a static screening and assessment of Austria’s CCS and underground hydrogen storage (UHS) potential in hydrocarbon reservoirs. Using reported ultimate recoveries from oil and gas fields, CO<sub>2</sub> storage capacities were estimated across 73 reservoirs. The results indicate a total static CCS capacity of 263 Mt (183–357 Mt, depending on efficiency factor variation) for pure CO<sub>2</sub>, which decreases to 151–293 Mt when high levels of impurities are considered. The five largest gas fields, with individual storage capacities exceeding 10 Mt, account for approximately 100 Mt of CCS capacity. Site-specific challenges in Austria’s largest hydrocarbon fields may include numerous abandoned boreholes, strong aquifer support, and competition with UHS. Storage efficiency factors and CO<sub>2</sub> density variations significantly impact capacity estimates, particularly in reservoirs near the supercritical threshold. For UHS, the total theoretical storage capacity across suitable fields was calculated to be 55 TWh, with 21 TWh identified in operational underground gas storage sites. Competition between CCS and UHS technologies is anticipated in relatively large gas fields with overlapping suitability. While individual CO<sub>2</sub> storage capacities in hydrocarbon fields are small compared to offshore saline aquifers, they offer advantages such as existing infrastructure, detailed reservoir characterization, and proximity to major emission sources. The identified CCS capacity could bridge crucial periods before CO<sub>2</sub> export or saline aquifer storage becomes viable.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"155 ","pages":"Article 104754"},"PeriodicalIF":5.9,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148853966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laura Herraiz , Iain Struthers , Dan Su , Hasan Muslemani , Mathieu Lucquiaud , R. Camilla Thomson
{"title":"Life cycle assessment of four waste-to-energy plant configurations equipped with post-combustion carbon capture and storage","authors":"Laura Herraiz , Iain Struthers , Dan Su , Hasan Muslemani , Mathieu Lucquiaud , R. Camilla Thomson","doi":"10.1016/j.ijggc.2026.104588","DOIUrl":"10.1016/j.ijggc.2026.104588","url":null,"abstract":"<div><div>When equipped with Carbon Capture and Storage (CCS), Waste to Energy plants can directly reduce fossil carbon dioxide emissions from post-recycling residual waste while also re-capturing atmospheric carbon dioxide via the permanent geological storage of biogenic carbon uptake. Increasingly, municipal solid waste (MSW) is treated by incineration in dedicated plants where the heat from combustion is recovered via electricity generation and district heating. Post-combustion CO<sub>2</sub> capture with amine-based technology can achieve ultra-high CO<sub>2</sub> capture rates such that CO<sub>2</sub> generated in the combustion of the waste feedstock results in no direct CO<sub>2</sub> emissions to the atmosphere. The large biogenic content of residual waste feedstock presents a particular opportunity for bioenergy with CCS (BECCS).</div><div>A life cycle assessment LCA of the environmental impacts of a state-of-the-art WtE facility with CCS at ultra-high capture rates shows that adding CCS can provide a significant improvement in climate change impact, and achieve a net climate benefit. Without significant burden shifting to other environmental impact categories, the climate change impact of a WtE plant treating 500 tpd of MSW is reduced from 388 kg CO<sub>2</sub>eq/t<sub>MSW</sub> to -483 kg CO<sub>2</sub>eq/t<sub>MSW</sub>, with the biogenic CO<sub>2</sub> captured and permanently stored accounted as negative CO<sub>2</sub> emissions. When the avoided greenhouse gas emissions from electricity, district heating and material recovery are also included, the climate impact is -777 kg CO<sub>2</sub>eq/t<sub>MSW</sub> for a power-only WtE plant exporting 9.6 MW<sub>e</sub>, and -907 kg CO<sub>2</sub>eq/t<sub>MSW</sub> for a combined heat and power WtE plant exporting 6.2 MW<sub>e</sub> and 18.5 MW<sub>th</sub>.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104588"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Operational study of a 200,000 tonne/yr partial oxy-fuel combustion CO2 capture project for cement production","authors":"Changhua Chen , Zhouzheng Jin , Xueping Peng , Chenghang Zheng , Xiang Gao","doi":"10.1016/j.ijggc.2026.104585","DOIUrl":"10.1016/j.ijggc.2026.104585","url":null,"abstract":"<div><div>Oxy-fuel combustion presents a viable pathway for achieving near-zero carbon emissions in cement production, significantly reducing flue gas volume while enhancing CO<sub>2</sub> concentration to minimize capture costs. However, elevated CO<sub>2</sub> concentration impede raw meal decomposition in calciner, constituting a constraint for oxy-fuel combustion application. This study evaluated the world’s first industrial-scale 200,000 tonne/yr partial oxy-fuel combustion (oxy-fuel calciner) system in the cement sector, operational in China since 2024. The newly built oxy-fuel calciner operates with flexible transitions between air combustion, oxy-fuel combustion and hybrid combustion conditions, while the original rotary kiln and the pre-existing calciner remain to operate in air combustion condition. Operational results of the oxy-fuel calciner system indicated an average preheater outlet flue gas CO<sub>2</sub> concentration of 82.7 % in oxy-fuel combustion condition, marking a 47.5 % increase over air combustion, with a daily output of 667 tonnes of 99.95 % pure CO<sub>2</sub> production. To mitigate the inhibitory effects of high CO<sub>2</sub> on carbonate decomposition, calciner temperatures required elevation by 27–32 °C, achieving a raw meal calcination rate of 90–93 %. Notably, preheater outlet flue gas temperatures averaged 203 °C, 33 °C lower than air combustion, due to reduced gas volumes despite higher calciner temperatures. Real-time monitoring detected O<sub>2</sub> concentration variations, with air combustion at 1.7–2.6 %, hybrid combustion at 2.4–4.2 % and oxy-fuel operation at 2.0–5.2 %. The study also revealed that increased oxygen utilization exacerbates thermal and pressure instabilities, particularly impacting clinker free-CaO control in kiln operation.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104585"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146077273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rakul M.I. Johannesen , Olivier Galland , Hans Jørgen Kjøll , Jana Ólavsdóttir , Óluva Eidesgaard , Sverre Planke
{"title":"Impact of fractures on basaltic reservoirs - Field characterisation of fracture distribution in lava flows, Faroe Islands","authors":"Rakul M.I. Johannesen , Olivier Galland , Hans Jørgen Kjøll , Jana Ólavsdóttir , Óluva Eidesgaard , Sverre Planke","doi":"10.1016/j.ijggc.2026.104620","DOIUrl":"10.1016/j.ijggc.2026.104620","url":null,"abstract":"<div><div>Mafic lava flows have significant potential as fluid reservoirs, particularly for CO<sub>2</sub>; however, their highly heterogeneous nature results in variable storage capacity across different locations. A crucial parameter for assessing reservoir potential is injectivity, which is primarily controlled by porosity and permeability. Porosity and permeability in lava flows, typically in the form of vesicles, are high at the lava flow top and base, while the flow core tends to have low permeability. Additionally, secondary fracturing of lava flow units may significantly influence both injectivity and overall storage capacity. Despite the potential positive impact on reservoir properties, there has been a lack of detailed descriptions and quantifications regarding fractures in basalts. Our field-based study presents an area onshore the Faroe Islands, which serves as an analogue for the offshore North Atlantic Igneous Province. We have mapped the spatial distribution of lineaments and fracture network characteristics using digital elevation and outcrop models ranging from km-scale to cm-scale. Permeability was calculated using the software FracPaQ to evaluate the influence of fractures on reservoir potential. We found that (1) fracture spacing increases with lava flow thickness, (2) fractures add significant secondary permeability, and (3) both km-scale and cm-scale fractures exhibit similar east-west preferred orientation, implying a preferential fluid flow in the same east-west orientation. Our study provides vital field evidence of vertical and horizontal fracture distributions in lava flows, forming a foundational basis for initial site characterisation of future CO<sub>2</sub> reservoirs, and highlighting the importance of including fractures in the characterisation of volcanic reservoirs.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104620"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147400208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seyi Philemon Akanji , Rossen Sedev , Lionel Esteban , Ausama Giwelli , Trevor Beardsmore , Heather Howard , Joel Sarout , Alireza Keshavarz , Stefan Iglauer
{"title":"Corrigendum to “Towards carbon geosequestration: comparing the wettability performance of Western Australian altered basaltic rock/CO2/water systems” [International Journal of Greenhouse Gas Control 149 (2026) 104554]","authors":"Seyi Philemon Akanji , Rossen Sedev , Lionel Esteban , Ausama Giwelli , Trevor Beardsmore , Heather Howard , Joel Sarout , Alireza Keshavarz , Stefan Iglauer","doi":"10.1016/j.ijggc.2026.104613","DOIUrl":"10.1016/j.ijggc.2026.104613","url":null,"abstract":"","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104613"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147400209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Audrey Ougier-Simonin , Owain Tucker , Alexander Bump , Sarah Eileen Gasda , Rannveig Elise Otterlei , Adriana Lemgruber-Traby , Eric Mackay , Ludovic Paul Ricard , Felix Herrmann , Matthias Imhof
{"title":"The pressure balancing act in geological storage: sharing the subsurface for the common good","authors":"Audrey Ougier-Simonin , Owain Tucker , Alexander Bump , Sarah Eileen Gasda , Rannveig Elise Otterlei , Adriana Lemgruber-Traby , Eric Mackay , Ludovic Paul Ricard , Felix Herrmann , Matthias Imhof","doi":"10.1016/j.ijggc.2026.104610","DOIUrl":"10.1016/j.ijggc.2026.104610","url":null,"abstract":"<div><div>Large-scale geological CO₂ storage (GCS) is essential for achieving net zero targets: its scalability is constrained less by pore volume occupancy than by pressure space—the finite capacity of connected formations to dissipate pressure increases without causing undesirable consequences (such as brine expulsion, induced seismicity, and lower injection rates for a given surface pressure). Current regulatory and commercial frameworks focus on project/site scale containment of CO<sub>2</sub>, but as multiple projects start to inject in the same storage formation, the cumulative pressure buildup will limit injectivity long before pore space is filled with CO<sub>2</sub>. Here we synthesize the physics of pressure propagation, the geomechanical limits, and interference across multiuser aquifers, and review monitoring and modelling strategies from analytical screening to full field simulations. Drawing on analogues from groundwater management and three regional illustrative examples (Horda Platform, Paris Basin, Captain Fairway), we show that pressure footprints can exceed plume extents by two orders of magnitude and propagate across tens to hundreds of kilometers. We argue that commons-based governance, underpinned by effective monitoring, open data, regional models, and adaptive allocation of pressure budgets, is essential for safe, efficient, and equitable storage. Treating pressure as a shared resource is not optional: it is the foundation for gigatonne scale CO₂ storage and sustainable multiuser use of the subsurface.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104610"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147400215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Carbon dioxide pipeline network transportation cost model: evaluating economic and geographic factors for efficient carbon capture, storage, and utilization","authors":"Kwang Hoon Baek , Sheik Tanveer , Amgad Elgowainy","doi":"10.1016/j.ijggc.2026.104622","DOIUrl":"10.1016/j.ijggc.2026.104622","url":null,"abstract":"<div><div>This study presents a comprehensive pipeline network modeling framework to estimate the CO<sub>2</sub> delivery cost for CO<sub>2</sub> utilization and geologic CO<sub>2</sub> storage across the United States. We developed a Python-based CO<sub>2</sub> pipeline transportation cost model leveraging Argonne National Laboratory’s pipeline engineering expertise and detailed natural gas transmission pipeline cost data across U.S. regions. Using existing road corridors as practical routing guides, the model designs pipeline networks that aggregate CO<sub>2</sub> from one or multiple sources and deliver it to selected destinations. It then minimizes the total transportation cost by optimizing pipeline diameters and incorporating booster pumps.</div><div>A key contribution is the incorporation of up-to-date, region-specific cost factors with itemized components for materials, labor, miscellaneous construction expenses, and right-of-way acquisition. Results emphasize that regional variation and economies of scale associated with CO<sub>2</sub> pipeline costs are significant and should be explicitly accounted for in screening and planning studies. By combining realistic routing constraints with regionalized cost inputs, the model provides transparent design methodology and location-specific insights into source–destination delivery costs, including the effects of routing complexity along existing road networks.</div><div>We demonstrate the model with two illustrative case studies – one for CO<sub>2</sub> storage and one for CO<sub>2</sub> utilization – in which the model designs pipeline networks spanning hundreds of miles across the states, collecting CO<sub>2</sub> from multiple sources and delivering it to designated endpoints while minimizing levelized cost of delivery via diameter and compression optimization. The model offers a practical, scalable approach for alternative design option screening and early-stage CO<sub>2</sub> transportation planning.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104622"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147400213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mahmoud Yahia , Norbert P. Szabó , Ahmed A. Radwan , Mahmoud Leila
{"title":"Integrated sedimentological and petrophysical rock typing of the Paleocene Farewell F sandstones: advancing sustainable solution for CO2 storage in Taranaki Basin, New Zealand","authors":"Mahmoud Yahia , Norbert P. Szabó , Ahmed A. Radwan , Mahmoud Leila","doi":"10.1016/j.ijggc.2026.104605","DOIUrl":"10.1016/j.ijggc.2026.104605","url":null,"abstract":"<div><div>As the global demand for effective carbon mitigation strategies intensifies, geological CO₂ storage has emerged as a key solution for supporting decarbonization efforts. However, reservoir heterogeneity and improper rock typing models often limit the accuracy of storage capacity predictions and long-term CO<sub>2</sub> injectivity assessments. This study addresses this gap by applying an integrated sedimentological, mineralogical and petrophysical rock typing analysis of the Farewell F Formation in the Maui Field, New Zealand with regional relevance for subsurface CO₂ storage. Maui Field in the Taranaki Basin hosts extensive, largely depleted gas-bearing reservoirs that represent promising candidates for long-term geological CO₂ storage. However, the storage potential of the Maui reservoir intervals remains insufficiently constrained. Farewell F consists mainly of mounded and onlapping wedge seismic facies corresponding to a prograding fluvio-deltaic sandstones. Mineralogically, Farewell F sandstone is classified as glauconitic, and argillaceous arkose arenite with heterogeneous porosity and permeability. Farewell F succession is subdivided into three distinct reservoir rock types (RRT<sub>1</sub>–RRT<sub>3</sub>). RRT<sub>1</sub> demonstrates optimal storage properties with porosity exceeding 15%, permeability ranging from 100 to 500 mD, and favorable capillary behavior, while RRT<sub>2</sub> and RRT<sub>3</sub> show tighter pore networks and higher capillary entry pressures, functioning as internal baffles and potential mineral trapping zones. The present results reveal a vertically organized architecture, offering a self-contained and stratigraphically governed storage system. Additionally, the glauconitic composition of Farewell sandstones may offer additional CO<sub>2</sub> storage capacity through mineral trapping. These findings underscore the potential of the Farewell Formation to support both physical and geochemical trapping mechanisms.</div></div>","PeriodicalId":334,"journal":{"name":"International Journal of Greenhouse Gas Control","volume":"151 ","pages":"Article 104605"},"PeriodicalIF":5.2,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147400311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}