{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T18:43:10Z","timestamp":1757616190713,"version":"3.44.0"},"reference-count":51,"publisher":"Public Library of Science (PLoS)","issue":"9","license":[{"start":{"date-parts":[[2025,9,5]],"date-time":"2025-09-05T00:00:00Z","timestamp":1757030400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science and Technology Department of Heilongjiang Province (Key Scientific Research Project","award":["2023ZXJ06A01"],"award-info":[{"award-number":["2023ZXJ06A01"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52304026"],"award-info":[{"award-number":["52304026"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100010009","name":"Heilongjiang Provincial Postdoctoral Science Foundation","doi-asserted-by":"publisher","award":["LBH-Z23040"],"award-info":[{"award-number":["LBH-Z23040"]}],"id":[{"id":"10.13039\/501100010009","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100017711","name":"Daqing Science and Technology Bureau","doi-asserted-by":"crossref","award":["YZ-XS-202312-10"],"award-info":[{"award-number":["YZ-XS-202312-10"]}],"id":[{"id":"10.13039\/100017711","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:sec id=\"sec001\">\n<jats:title>Background<\/jats:title>\n<jats:p>Strongly water-sensitive reservoirs with high clay content face challenges in conventional development due to clay swelling and impeded seepage. CO<jats:sub>2<\/jats:sub> injection shows potential for enhanced oil recovery (EOR) and carbon sequestration; however, the role of clay minerals in regulating CO<jats:sub>2<\/jats:sub>-induced asphaltene deposition and sequestration remains unclear.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec002\">\n<jats:title>Methodology<\/jats:title>\n<jats:p>We conducted experiments on clay-oil interactions, nuclear magnetic resonance (NMR), measurements of crude oil properties, and long core water flooding tests to evaluate deposition, reservoir damage, and CO<jats:sub>2<\/jats:sub> sequestration.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"sec003\">\n<jats:title>Conclusions\/Significance<\/jats:title>\n<jats:p>Results demonstrate that clay minerals significantly promote CO<jats:sub>2<\/jats:sub>-induced asphaltene deposition, with the deposition amount in clay-containing crude oil increasing by 37% compared to clay-free systems. The interfacial tension (IFT) between crude oil and CO<jats:sub>2<\/jats:sub> decreases from 15.68 to 12.53 mN\/m at 10\u2009MPa with increasing clay content, while crude oil viscosity reduces by up to 43.58% when CO<jats:sub>2<\/jats:sub> injection exceeds 30 mol%. Microscale NMR analysis confirms that clay-asphaltene aggregates preferentially block large pores, reducing reservoir heterogeneity and enhancing CO<jats:sub>2<\/jats:sub> sequestration in medium\/small pores. Macroscale long-core experiments highlight the significance of high clay mineral content for geological sequestration, showing that the CO<jats:sub>2<\/jats:sub> sequestration rate increases from 43.15% to 48.21% as clay content rises from 8.35% to 29.92%. Although deposition slightly impairs permeability, it drives CO<jats:sub>2<\/jats:sub> into medium\/small pores, thereby achieving a balance between oil recovery efficiency and long-term storage stability.<\/jats:p>\n<\/jats:sec>","DOI":"10.1371\/journal.pone.0331674","type":"journal-article","created":{"date-parts":[[2025,9,5]],"date-time":"2025-09-05T17:27:09Z","timestamp":1757093229000},"page":"e0331674","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":0,"title":["Mechanisms of clay mineral-induced targeted deposition and synergistic CO2 sequestration potential in the CCUS-EOR process"],"prefix":"10.1371","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-3023-7581","authenticated-orcid":true,"given":"Miaoxin","family":"Zhang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0280-1293","authenticated-orcid":true,"given":"Jingchun","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liyuan","family":"Cai","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bo","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yang","family":"Zhao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yangyang","family":"Hou","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fang","family":"Shi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunlong","family":"Zhang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"340","published-online":{"date-parts":[[2025,9,5]]},"reference":[{"issue":"4649","key":"pone.0331674.ref001","doi-asserted-by":"crossref","first-page":"563","DOI":"10.1126\/science.224.4649.563","article-title":"Use 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