{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T18:59:35Z","timestamp":1790103575385,"version":"4.0.1"},"reference-count":51,"publisher":"Public Library of Science (PLoS)","issue":"1","license":[{"start":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T00:00:00Z","timestamp":1767830400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["www.plosone.org"],"crossmark-restriction":false},"short-container-title":["PLoS One"],"abstract":"<jats:p>\n                    Minimum miscibility pressure (MMP) is a critical parameter in reservoir screening and development design for CO\n                    <jats:sub>2<\/jats:sub>\n                    flooding projects. With the expanding implementation of CO\n                    <jats:sub>2<\/jats:sub>\n                    flooding in the Ordos Basin, practical challenges have emerged, including difficulties in acquiring crude oil samples and the high cost of testing during the screening phase. Through experimental measurements and theoretical analysis, significant compositional similarities among different crude oils were revealed. Based on this finding, a simplified MMP prediction model was developed, requiring only reservoir temperature as input. Among the evaluated models, the quadratic polynomial model achieved the highest fitting accuracy (R\n                    <jats:sup>2<\/jats:sup>\n                    \u2009=\u20090.841) and the smallest root mean square error (RMSE). Validation using oil samples from a candidate block for CO\n                    <jats:sub>2<\/jats:sub>\n                    flooding yielded absolute and relative errors of 0.93 MPa and 4.93%, respectively, indicating that the model satisfies the accuracy requirements for MMP prediction and miscibility assessment in reservoir screening. The proposed method provides robust technical support for the large-scale deployment of CO\n                    <jats:sub>2<\/jats:sub>\n                    -enhanced oil recovery and storage in the Ordos Basin.\n                  <\/jats:p>","DOI":"10.1371\/journal.pone.0339648","type":"journal-article","created":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T18:26:16Z","timestamp":1767896776000},"page":"e0339648","update-policy":"https:\/\/doi.org\/10.1371\/journal.pone.corrections_policy","source":"Crossref","is-referenced-by-count":1,"title":["A simplified model for predicting the minimum miscibility pressure of CO2 flooding in reservoirs of the Ordos Basin"],"prefix":"10.1371","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1462-1919","authenticated-orcid":true,"given":"Wei","family":"Wang","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qinglong","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jian","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhenjie","family":"Yao","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shiyu","family":"Wang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peihao","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2026,1,8]]},"reference":[{"key":"pone.0339648.ref001","volume-title":"National petroleum resources assessment","author":"Ministry of Land and Resources, Strategic Research Center of Oil and Gas Resources","year":"2011"},{"key":"pone.0339648.ref002","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/j.ijggc.2017.04.001","article-title":"Cleaner coal and greener oil production: an integrated CCUS approach in Yanchang Petroleum Group","volume":"62","author":"XZ Wang","year":"2017","journal-title":"Int J Greenhouse Gas Control"},{"issue":"1","key":"pone.0339648.ref003","first-page":"29","article-title":"Analysis of the potential of CO2 geological storage in the Ordos Basin","volume":"32","author":"XK Ren","year":"2010","journal-title":"Energy China"},{"issue":"1","key":"pone.0339648.ref004","first-page":"1","article-title":"Technical advancement and prospect for CO2 flooding enhanced oil recovery in low permeability reservoirs","volume":"27","author":"Y Li","year":"2020","journal-title":"Pet Geol Recovery Efficiency"},{"key":"pone.0339648.ref005","doi-asserted-by":"crossref","first-page":"133188","DOI":"10.1016\/j.jhydrol.2025.133188","article-title":"Wellbore-reservoir and multiphysics coupling model for liquid CO2 cyclic injection in a CCUS-EGR framework","volume":"658","author":"X Gao","year":"2025","journal-title":"J Hydrol"},{"issue":"1","key":"pone.0339648.ref006","first-page":"99","article-title":"Evaluation on geological sequestration suitability and potential of CO2 in Ordos Basin","volume":"15","author":"H Yang","year":"2019","journal-title":"Clim Chang Res"},{"key":"pone.0339648.ref007","volume-title":"Evaluation of the adaptability and application potential of CO2 flooding in the Huang 3 Chang 8 reservoir. In: 15th Ningxia Young Scientist Forum","author":"KS An","year":"2019"},{"issue":"4","key":"pone.0339648.ref008","first-page":"646","article-title":"Effect of CO2 injection on physical properties of Huaziping crude oil in Yanchang Oilfiled","volume":"36","author":"ZL Zhang","year":"2019","journal-title":"Oilfield Chem"},{"key":"pone.0339648.ref009","doi-asserted-by":"crossref","first-page":"122287","DOI":"10.1016\/j.energy.2021.122287","article-title":"Effects of miscible degree and pore scale on seepage characteristics of unconventional reservoirs fluids due to supercritical CO2 injection","volume":"239","author":"H Chen","year":"2022","journal-title":"Energy"},{"issue":"1","key":"pone.0339648.ref010","doi-asserted-by":"crossref","first-page":"196","DOI":"10.1016\/S1876-3804(25)60014-0","article-title":"Oil production characteristics and CO2 storage mechanisms of CO2 flooding in ultra-low permeability sandstone oil reservoirs","volume":"52","author":"X Liu","year":"2025","journal-title":"Pet Explor Dev"},{"key":"pone.0339648.ref011","doi-asserted-by":"crossref","first-page":"106366","DOI":"10.1016\/j.petrol.2019.106366","article-title":"A review of experimental methods for determining the Oil\u2012Gas minimum miscibility pressures","volume":"183","author":"K Zhang","year":"2019","journal-title":"J Pet Sci Eng"},{"key":"pone.0339648.ref012","doi-asserted-by":"crossref","first-page":"114","DOI":"10.1016\/j.fluid.2018.09.009","article-title":"Prediction of minimum miscibility pressure of pure CO2, carbon dioxide gas mixtures and polymer-supercritical CO2 in oil using modified quadrupole Cubic Plus Association Equation of State (mqCPAEoS)","volume":"478","author":"A Haghtalab","year":"2018","journal-title":"Fluid Phase Equilibria"},{"key":"pone.0339648.ref013","doi-asserted-by":"crossref","first-page":"643","DOI":"10.1016\/j.ijheatmasstransfer.2019.06.083","article-title":"Molecular insight into the miscible mechanism of CO2\/C10 in bulk phase and nanoslits","volume":"141","author":"T Fang","year":"2019","journal-title":"Int J Heat Mass Transfer"},{"key":"pone.0339648.ref014","doi-asserted-by":"crossref","DOI":"10.2118\/180857-MS","article-title":"Correlation for CO2 Minimum Miscibility Pressure in Tight Oil Reservoirs","author":"K Zhang","year":"2016","journal-title":"SPE Trinidad and Tobago Section Energy Resources Conference, Trinidad and Tobago, Spain"},{"key":"pone.0339648.ref015","doi-asserted-by":"crossref","first-page":"408","DOI":"10.1016\/j.petrol.2017.08.059","article-title":"An improved correlation to estimate the minimum miscibility pressure of CO2 in crude oils for carbon capture, utilization, and storage projects","volume":"158","author":"MK Valluri","year":"2017","journal-title":"J Pet Sci Eng"},{"issue":"05","key":"pone.0339648.ref016","first-page":"748","article-title":"Prediction model of minimum miscible pressure in CO2 flooding","volume":"12","author":"Y Pan","year":"2022","journal-title":"Pet Reservoir Eval Dev"},{"key":"pone.0339648.ref017","doi-asserted-by":"crossref","first-page":"1455","DOI":"10.1016\/j.petrol.2018.08.057","article-title":"Nanoscale-extended correlation to calculate gas solvent minimum miscibility pressures in tight oil reservoirs","volume":"171","author":"K Zhang","year":"2018","journal-title":"J Pet Sci Eng"},{"issue":"05","key":"pone.0339648.ref018","doi-asserted-by":"crossref","first-page":"485","DOI":"10.2118\/11125-PA","article-title":"Interpretation of pressure-composition phase diagrams for CO2\/crude-oil systems","volume":"24","author":"FM Jr Orr","year":"1984","journal-title":"Soc Pet Eng J"},{"issue":"3","key":"pone.0339648.ref019","doi-asserted-by":"crossref","first-page":"280","DOI":"10.1504\/IJOGCT.2015.068992","article-title":"Experimental investigation of miscible gas injection with different gases in petroleum reservoirs","volume":"9","author":"X Dong","year":"2015","journal-title":"Int J Oil Gas Coal Technol"},{"issue":"01","key":"pone.0339648.ref020","doi-asserted-by":"crossref","first-page":"160","DOI":"10.2118\/7477-PA","article-title":"Determination and prediction of CO2 minimum miscibility pressures (includes associated paper 8876)","volume":"32","author":"WF Yellig","year":"1980","journal-title":"J Pet Technol"},{"issue":"1","key":"pone.0339648.ref021","first-page":"1","article-title":"Characteristics geotemperature-geopressure systems in petroliferous basins of China","volume":"33","author":"Z Liu","year":"2012","journal-title":"Acta Petrolei Sinica"},{"issue":"3","key":"pone.0339648.ref022","first-page":"137","article-title":"Thermal history and its control on oil and gas of the Ordos Basin","volume":"24","author":"ZL Ren","year":"2017","journal-title":"Earth Sci Front"},{"issue":"04","key":"pone.0339648.ref023","doi-asserted-by":"crossref","first-page":"468","DOI":"10.2118\/14149-PA","article-title":"Effect of oil composition on minimum miscibility pressure\u2014part 1: solubility of hydrocarbons in dense CO2","volume":"2","author":"MK Silva","year":"1987","journal-title":"SPE Reservoir Eng"},{"issue":"01","key":"pone.0339648.ref024","doi-asserted-by":"crossref","first-page":"87","DOI":"10.2118\/8814-PA","article-title":"Effect of oil composition on miscible-type displacement by carbon dioxide","volume":"22","author":"LW Holm","year":"1982","journal-title":"Soc Pet Eng J"},{"issue":"02","key":"pone.0339648.ref025","doi-asserted-by":"crossref","first-page":"268","DOI":"10.2118\/11959-PA","article-title":"CO2 minimum miscibility pressure: a correlation for impure CO2 streams and live oil systems","volume":"25","author":"RB Alston","year":"1985","journal-title":"Soc Pet Eng J"},{"issue":"04","key":"pone.0339648.ref026","doi-asserted-by":"crossref","first-page":"479","DOI":"10.2118\/14150-PA","article-title":"Effect of oil composition on minimum miscibility pressure\u2014part 2: correlation","volume":"2","author":"FM Jr Orr","year":"1987","journal-title":"SPE Reservoir Eng"},{"key":"pone.0339648.ref027","author":"K Zhang","year":"2011"},{"issue":"5","key":"pone.0339648.ref028","first-page":"101","article-title":"Research progress of miscible gas displacement and determination of minimum miscible pressure","volume":"39","author":"M Liang","year":"2017","journal-title":"J Southwest Pet Univ (Sci Technol Ed)"},{"issue":"2","key":"pone.0339648.ref029","first-page":"108","article-title":"Geochemical characteristics and genetic types of crude oil from Yanchang Formation in the Longdong area, Ordos Basin","volume":"20","author":"GD Liu","year":"2013","journal-title":"Earth Sci Front"},{"issue":"3","key":"pone.0339648.ref030","doi-asserted-by":"crossref","first-page":"389","DOI":"10.1016\/S1876-3804(18)30044-2","article-title":"Formation patterns of Chang 9 oil reservoir in Triassic Yanchang Formation, Ordos Basin, NW China","volume":"45","author":"J Yao","year":"2018","journal-title":"Pet Expl Dev"},{"issue":"4","key":"pone.0339648.ref031","first-page":"6","article-title":"Oil and source rock correlation of lower assemblage of Yanchang Formation in Wuqi and Dingbian areas, Ordos Basin","volume":"35","author":"XZ Wang","year":"2013","journal-title":"Petr Geol Exp"},{"issue":"2","key":"pone.0339648.ref032","first-page":"142","article-title":"Study on the property and origin of crude oil of Yanchang Formation in Jiyuan Oilfield, Ordos Basin","volume":"33","author":"RC Zhen","year":"2011","journal-title":"J Earth Sci Environ"},{"issue":"2","key":"pone.0339648.ref033","first-page":"383","article-title":"Accumulation process of ultra-low permeability reservoirs in Yanchang Formation Ordos Basin: a case from Gufengzhuang-Mahuangshan area","volume":"35","author":"XF Qu","year":"2017","journal-title":"Acta Sedimentologica Sinica"},{"issue":"5","key":"pone.0339648.ref034","first-page":"866","article-title":"Geochemical characteristics of crude oil in lower part of Yanchang Formation and correlation of oil source in Huaqing area of Ordos Basin","volume":"22","author":"XL Zhang","year":"2011","journal-title":"Nat Gas Geosci"},{"issue":"1","key":"pone.0339648.ref035","first-page":"17","article-title":"Relationship between distribution of hydrocarbon source rocks and oil-gas enrichment of Yanchang Formation, Triassic, Ordos Basin","volume":"1","author":"LH Dong","year":"2014","journal-title":"Unconventional Oil Gas"},{"issue":"2","key":"pone.0339648.ref036","first-page":"218","article-title":"Geochemical behaviors of oil and oil-source correlation in Yanchang-Yan\u2019an formations in Ansai-Fuxian area of Ordos basin","volume":"27","author":"YQ Guo","year":"2006","journal-title":"Oil Gas Geol"},{"key":"pone.0339648.ref037","doi-asserted-by":"crossref","first-page":"106305","DOI":"10.1016\/j.petrol.2019.106305","article-title":"Potential to enhance CO2 flooding in low permeability reservoirs by alcohol and surfactant as co-solvents","volume":"182","author":"M Ding","year":"2019","journal-title":"J Pet Sci Eng"},{"key":"pone.0339648.ref038","first-page":"27","article-title":"Technology and practice of CO2 flooding and storage in low-permeability tight reservoirs","volume":"2","author":"XZ Wang","year":"2023","journal-title":"Pet Geol Recovery Efficiency"},{"issue":"04","key":"pone.0339648.ref039","first-page":"98","article-title":"Carbon dioxide capture, utilization and storage technology and engineering application for coal-fired power plants","volume":"29","author":"YZ Gu","year":"2023","journal-title":"Clean Coal Technol"},{"key":"pone.0339648.ref040","first-page":"1","article-title":"Progress on carbon capture, utilization and storage technology application in China\u2019s power industries","author":"XN Li","year":"2025","journal-title":"Low-Carbon Chem Chemical Eng"},{"key":"pone.0339648.ref041","doi-asserted-by":"crossref","first-page":"218","DOI":"10.1016\/j.ijggc.2016.04.025","article-title":"A full chain CCS demonstration project in northeast Ordos Basin, China: Operational experience and challenges","volume":"50","author":"K Zhang","year":"2016","journal-title":"Int J Greenhouse Gas Control"},{"key":"pone.0339648.ref042","doi-asserted-by":"crossref","first-page":"116569","DOI":"10.1016\/j.fuel.2019.116569","article-title":"Influence of confinement effect on recovery mechanisms of CO2-enhanced tight-oil recovery process considering critical properties shift, capillarity and adsorption","volume":"262","author":"S Wu","year":"2020","journal-title":"Fuel"},{"issue":"03","key":"pone.0339648.ref043","doi-asserted-by":"crossref","first-page":"396","DOI":"10.2118\/168865-PA","article-title":"Phase behavior and minimum miscibility pressure in nanopores","volume":"17","author":"TW Teklu","year":"2014","journal-title":"SPE Reservoir Eval Eng"},{"issue":"2","key":"pone.0339648.ref044","first-page":"73","article-title":"Types, characteristics, genesis and prospects of conventional and unconventional hydrocarbon accumulations: taking tight oil and tight gas in Chinese as an instance","volume":"33","author":"CN Zou","year":"2012","journal-title":"Acta Petrolei Sinic"},{"key":"pone.0339648.ref045","doi-asserted-by":"crossref","first-page":"106304","DOI":"10.1016\/j.petrol.2019.106304","article-title":"Investigation of asphaltene-derived formation damage and nano-confinement on the performance of CO2 huff-n-puff in shale oil reservoirs","volume":"182","author":"JH Lee","year":"2019","journal-title":"J Pet Sci Eng"},{"issue":"47","key":"pone.0339648.ref046","doi-asserted-by":"crossref","first-page":"57267","DOI":"10.1021\/acsomega.5c07432","article-title":"Prediction of the minimum miscibility pressure of the CO2\u2011crude oil system in the Ordos Basin","volume":"10","author":"Q Zhu","year":"2025","journal-title":"ACS Omega"},{"issue":"6","key":"pone.0339648.ref047","first-page":"87","article-title":"Experimental study on CO2 immiscible flooding in ultra-low permeability reservoirs, Ordos Basin","volume":"32","author":"W Wang","year":"2017","journal-title":"J Xi\u2019an Shiyou Univ (Nat Sci Ed)"},{"issue":"6","key":"pone.0339648.ref048","first-page":"95","article-title":"Research on CO2 flooding parameters optimization of extra-low permeability reservoirs","volume":"36","author":"H Wang","year":"2014","journal-title":"J Southwest Pet Univ (Sci Technol Ed)"},{"key":"pone.0339648.ref049","first-page":"14","volume-title":"Capacity evaluation methodology of CO2-EOR and geological storage","author":"QJ Liu","year":"2012"},{"issue":"5","key":"pone.0339648.ref050","doi-asserted-by":"crossref","first-page":"418","DOI":"10.2118\/89359-PA","article-title":"Improved MMP correlations for CO2 floods using analytical gas flooding theory","volume":"8","author":"H Yuan","year":"2005","journal-title":"SPE Reservoir Eval Eng."},{"issue":"6","key":"pone.0339648.ref051","doi-asserted-by":"crossref","first-page":"1556","DOI":"10.1016\/S1876-3804(25)60559-3","article-title":"Experiments on thermal miscible rules of different gas media and crude oil","volume":"51","author":"C Xi","year":"2024","journal-title":"Pet Explor Dev"}],"container-title":["PLOS One"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0339648","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T18:26:23Z","timestamp":1767896783000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pone.0339648"}},"subtitle":[],"editor":[{"given":"Xinyuan","family":"Gao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2026,1,8]]},"references-count":51,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2026,1,8]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pone.0339648","relation":{},"ISSN":["1932-6203"],"issn-type":[{"value":"1932-6203","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,1,8]]}}}