Displacement mechanisms of enhanced heavy oil recovery by alkaline flooding in a micromodel
Enhanced oil recovery （EOR） by alkaline flooding for conventional oils has been extensively studied. For heavy oils, investigations are very limited due to the unfavorable mobility ratio between the water and oil phases. In this study, the displacement mechanisms of alkaline flooding for heavy oil E...
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| Veröffentlicht in: | Particuology 2012-06, Vol.10 (3), p.298-305 |
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| creator | Dong, Mingzhe Liu, Qiang Li, Aifen |
| description | Enhanced oil recovery （EOR） by alkaline flooding for conventional oils has been extensively studied. For heavy oils, investigations are very limited due to the unfavorable mobility ratio between the water and oil phases. In this study, the displacement mechanisms of alkaline flooding for heavy oil EOR are investigated by conducting flood tests in a micromodel. Two different displacement mechanisms are observed for enhancing heavy oil recovery. One is in situ water-in-oil （W/O） emulsion formation and partial wettability alteration. The W/O emulsion formed during the injection of alkaline solution plugs high permeability water channels, and pore walls are altered to become partially oil-wetted, leading to an improvement in sweep efficiency and high tertiary oil recovery. The other mechanism is the formation of an oil-in-water （O/W） emulsion. Heavy oil is dispersed into the water phase by injecting an alkaline solution containing a very dilute surfactant. The oil is then entrained in the water phase and flows out of the model with the water phase. |
| doi_str_mv | 10.1016/j.partic.2011.09.008 |
| format | Article |
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For heavy oils, investigations are very limited due to the unfavorable mobility ratio between the water and oil phases. In this study, the displacement mechanisms of alkaline flooding for heavy oil EOR are investigated by conducting flood tests in a micromodel. Two different displacement mechanisms are observed for enhancing heavy oil recovery. One is in situ water-in-oil （W/O） emulsion formation and partial wettability alteration. The W/O emulsion formed during the injection of alkaline solution plugs high permeability water channels, and pore walls are altered to become partially oil-wetted, leading to an improvement in sweep efficiency and high tertiary oil recovery. The other mechanism is the formation of an oil-in-water （O/W） emulsion. Heavy oil is dispersed into the water phase by injecting an alkaline solution containing a very dilute surfactant. The oil is then entrained in the water phase and flows out of the model with the water phase.</description><identifier>ISSN: 1674-2001</identifier><identifier>EISSN: 2210-4291</identifier><identifier>DOI: 10.1016/j.partic.2011.09.008</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Alkaline flooding ; Emulsion flow ; Enhanced oil recovery ; Immiscible displacement ; Micromodel ; 位移 ; 原油采收率 ; 微观 ; 机制 ; 水浸提 ; 碱性溶液 ; 稠油 ; 表面活性剂</subject><ispartof>Particuology, 2012-06, Vol.10 (3), p.298-305</ispartof><rights>2011 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences</rights><rights>Copyright © Wanfang Data Co. Ltd. All Rights Reserved.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c432t-1c55c91f7d3c84294eec488d4f233e89f0244e940bd5d31e4d43b5f6971dea4e3</citedby><cites>FETCH-LOGICAL-c432t-1c55c91f7d3c84294eec488d4f233e89f0244e940bd5d31e4d43b5f6971dea4e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/87070X/87070X.jpg</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.partic.2011.09.008$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Dong, Mingzhe</creatorcontrib><creatorcontrib>Liu, Qiang</creatorcontrib><creatorcontrib>Li, Aifen</creatorcontrib><title>Displacement mechanisms of enhanced heavy oil recovery by alkaline flooding in a micromodel</title><title>Particuology</title><addtitle>China Particuology</addtitle><description>Enhanced oil recovery （EOR） by alkaline flooding for conventional oils has been extensively studied. For heavy oils, investigations are very limited due to the unfavorable mobility ratio between the water and oil phases. In this study, the displacement mechanisms of alkaline flooding for heavy oil EOR are investigated by conducting flood tests in a micromodel. Two different displacement mechanisms are observed for enhancing heavy oil recovery. One is in situ water-in-oil （W/O） emulsion formation and partial wettability alteration. The W/O emulsion formed during the injection of alkaline solution plugs high permeability water channels, and pore walls are altered to become partially oil-wetted, leading to an improvement in sweep efficiency and high tertiary oil recovery. The other mechanism is the formation of an oil-in-water （O/W） emulsion. Heavy oil is dispersed into the water phase by injecting an alkaline solution containing a very dilute surfactant. The oil is then entrained in the water phase and flows out of the model with the water phase.</description><subject>Alkaline flooding</subject><subject>Emulsion flow</subject><subject>Enhanced oil recovery</subject><subject>Immiscible displacement</subject><subject>Micromodel</subject><subject>位移</subject><subject>原油采收率</subject><subject>微观</subject><subject>机制</subject><subject>水浸提</subject><subject>碱性溶液</subject><subject>稠油</subject><subject>表面活性剂</subject><issn>1674-2001</issn><issn>2210-4291</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqFkDtPAzEQhC0EEiHwDyhMSXGHX7ncNUgoPCUkGqgoLMdeJ07u7GCHwPHrcZSIlmq10szOzofQOSUlJbS6WpQrFddOl4xQWpKmJKQ-QAPGKCkEa-ghGtBqLApGCD1GJyktCKlYxfgAvd-6tGqVhg78Gneg58q71CUcLAafFw0Gz0FtehxciyPosIHY42mPVbtUrfOAbRuCcX6GnccKd07H0AUD7Sk6sqpNcLafQ_R2f_c6eSyeXx6eJjfPhRacrQuqRyPdUDs2XNf5XQGgRV0bYRnnUDeWMCGgEWRqRoZTEEbw6chWzZgaUAL4EF3u7n4pb5WfyUX4jD4nyp_Zsv2eSshcGOG5dNaKnTY_mVIEK1fRdSr2khK5hSkXcgdTbmFK0sgMM9uudzbIPTYOokzawRaOy0jW0gT334GLfe48-NlHpvUXLBhjgo8F_wWEwItv</recordid><startdate>20120601</startdate><enddate>20120601</enddate><creator>Dong, Mingzhe</creator><creator>Liu, Qiang</creator><creator>Li, Aifen</creator><general>Elsevier B.V</general><general>Department of Chemical and Petroleum Engineering, University of Calgary, Calgary AB T2N 1N4, Canada%Brenntag Canada Inc., Calgary AB T2C 0A8, Canada%College of Petroleum Engineering, China University of Petroleum(East), Qingdao, Shandong255666, China</general><general>College of Petroleum Engineering, China University of Petroleum(East), Qingdao, Shandong255666, China</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20120601</creationdate><title>Displacement mechanisms of enhanced heavy oil recovery by alkaline flooding in a micromodel</title><author>Dong, Mingzhe ; Liu, Qiang ; Li, Aifen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c432t-1c55c91f7d3c84294eec488d4f233e89f0244e940bd5d31e4d43b5f6971dea4e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Alkaline flooding</topic><topic>Emulsion flow</topic><topic>Enhanced oil recovery</topic><topic>Immiscible displacement</topic><topic>Micromodel</topic><topic>位移</topic><topic>原油采收率</topic><topic>微观</topic><topic>机制</topic><topic>水浸提</topic><topic>碱性溶液</topic><topic>稠油</topic><topic>表面活性剂</topic><toplevel>online_resources</toplevel><creatorcontrib>Dong, Mingzhe</creatorcontrib><creatorcontrib>Liu, Qiang</creatorcontrib><creatorcontrib>Li, Aifen</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Wanfang Data Journals - Hong Kong</collection><collection>WANFANG Data Centre</collection><collection>Wanfang Data Journals</collection><collection>万方数据期刊 - 香港版</collection><collection>China Online Journals (COJ)</collection><collection>China Online Journals (COJ)</collection><jtitle>Particuology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Dong, Mingzhe</au><au>Liu, Qiang</au><au>Li, Aifen</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Displacement mechanisms of enhanced heavy oil recovery by alkaline flooding in a micromodel</atitle><jtitle>Particuology</jtitle><addtitle>China Particuology</addtitle><date>2012-06-01</date><risdate>2012</risdate><volume>10</volume><issue>3</issue><spage>298</spage><epage>305</epage><pages>298-305</pages><issn>1674-2001</issn><eissn>2210-4291</eissn><abstract>Enhanced oil recovery （EOR） by alkaline flooding for conventional oils has been extensively studied. For heavy oils, investigations are very limited due to the unfavorable mobility ratio between the water and oil phases. In this study, the displacement mechanisms of alkaline flooding for heavy oil EOR are investigated by conducting flood tests in a micromodel. Two different displacement mechanisms are observed for enhancing heavy oil recovery. One is in situ water-in-oil （W/O） emulsion formation and partial wettability alteration. The W/O emulsion formed during the injection of alkaline solution plugs high permeability water channels, and pore walls are altered to become partially oil-wetted, leading to an improvement in sweep efficiency and high tertiary oil recovery. The other mechanism is the formation of an oil-in-water （O/W） emulsion. Heavy oil is dispersed into the water phase by injecting an alkaline solution containing a very dilute surfactant. 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| ispartof | Particuology, 2012-06, Vol.10 (3), p.298-305 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals; Alma/SFX Local Collection |
| subjects | Alkaline flooding Emulsion flow Enhanced oil recovery Immiscible displacement Micromodel 位移 原油采收率 微观 机制 水浸提 碱性溶液 稠油 表面活性剂 |
| title | Displacement mechanisms of enhanced heavy oil recovery by alkaline flooding in a micromodel |
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