{"id":5436,"date":"2025-07-22T06:00:37","date_gmt":"2025-07-22T06:00:37","guid":{"rendered":"https:\/\/scientificworld.org\/?p=5436"},"modified":"2025-07-22T06:00:55","modified_gmt":"2025-07-22T06:00:55","slug":"new-study-unveils-key-mechanisms-in-geological-co%e2%82%82-storage","status":"publish","type":"post","link":"https:\/\/scientificworld.org\/?p=5436","title":{"rendered":"New Study Unveils Key Mechanisms in Geological CO\u2082 Storage"},"content":{"rendered":"\n<p>Researchers from Imperial College London and Petroliam Nasional Berhad (PETRONAS) have uncovered critical insights into the complex processes involved in storing CO\u2082 in sandstone formations. Published in&nbsp;<a href=\"http:\/\/dx.doi.org\/10.1016\/j.eng.2025.01.016\"><em>Engineering<\/em><\/a>, their study addresses gaps in understanding multiphase reactive flow\u2014a pivotal factor in making geological CO\u2082 storage a viable solution for reducing greenhouse gas emissions.<\/p>\n\n\n\n<p>The team conducted experiments on sandstone samples using advanced techniques like in situ X-ray imaging and scanning electron microscopy (SEM). Their results revealed two major findings:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Reduced Permeability<\/strong>: Both CO\u2082 relative permeability and absolute permeability decreased significantly during multiphase flow, even when the brine was pre-equilibrated with CO\u2082. This decline, caused by chemical reactions, could impact CO\u2082 injectivity and storage capacity in real-world applications.<\/li>\n\n\n\n<li><strong>Altered Pore Structures<\/strong>: The study observed shrinking pore and throat sizes, reduced connectivity, and increased irregularity in pore shapes. These changes, visualized through imaging, were linked to mineral dissolution (e.g., feldspar and calcite) and precipitation (e.g., transformation of feldspar to kaolinite).<\/li>\n<\/ol>\n\n\n\n<p>This research is the first to provide a comprehensive analysis of multiphase reactive flow in sandstone CO\u2082 storage. By identifying the mechanisms behind permeability and pore structure changes, the study offers a foundation for optimizing storage strategies. For instance, tailored approaches may be needed for mineralogically complex formations to mitigate adverse reactions.<strong><\/strong><\/p>\n\n\n\n<p>The researchers recommend developing quantitative models to better predict how permeability, petrophysical properties, and geochemical reactions interact. Such models could enhance the efficiency and safety of CO\u2082 storage in diverse geological settings.<\/p>\n\n\n\n<p>This groundbreaking work advances our understanding of geological CO\u2082 storage, bringing us closer to practical solutions for combating climate change. With further research, these insights could pave the way for more effective and sustainable carbon capture technologies.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers from Imperial College London and Petroliam Nasional Berhad (PETRONAS) have uncovered critical insights into the complex processes involved in storing CO\u2082 in sandstone formations. Published in&nbsp;Engineering, their study addresses gaps in understanding multiphase reactive flow\u2014a pivotal factor in making geological CO\u2082 storage a viable solution for reducing greenhouse gas emissions. The team conducted experiments [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1117],"tags":[2964,1423,1509,1425,3033,3034],"class_list":["post-5436","post","type-post","status-publish","format-standard","hentry","category-environmental-science","tag-chemical-reactions","tag-co","tag-engineering","tag-environmental-science","tag-geological","tag-permeability"],"_links":{"self":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/5436","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5436"}],"version-history":[{"count":1,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/5436\/revisions"}],"predecessor-version":[{"id":5437,"href":"https:\/\/scientificworld.org\/index.php?rest_route=\/wp\/v2\/posts\/5436\/revisions\/5437"}],"wp:attachment":[{"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5436"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5436"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scientificworld.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5436"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}