Study on the differences in microscopic oil displacement effects and action mechanisms of different rhamnolipid systems
Rhamnolipids are a class of anionic glycolipid surfactants produced through microbial metabolism. As a widely researched biosurfactant, rhamnolipids possess several advantages over traditional chemical surfactants, including non-toxicity, eco-friendliness, biodegradability, and biocompatibility, par...
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Veröffentlicht in: | Physics of fluids (1994) 2024-11, Vol.36 (11) |
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creator | Ma, Mengqi Li, Junjian Hu, Jing Li, Jiamu Dong, Lirong Ding, Jialei Jiang, Hanqiao |
description | Rhamnolipids are a class of anionic glycolipid surfactants produced through microbial metabolism. As a widely researched biosurfactant, rhamnolipids possess several advantages over traditional chemical surfactants, including non-toxicity, eco-friendliness, biodegradability, and biocompatibility, particularly in the context of microbial oil recovery applications. This class of surfactants enhances oil recovery by reducing the interfacial tension between oil and water, emulsifying residual oil, and modifying the wettability of rock surfaces. Furthermore, rhamnolipids maintain stability in high-temperature and high-salinity environments. However, rhamnolipids derived from different fermentation substrates exhibit variations in structure, composition, and properties, resulting in distinct displacement effects and mechanisms of action. This study focuses on two types of rhamnolipids: typical rhamnolipid and high-yield rhamnolipid, which are fermented using glycerol and rapeseed oil, respectively. Based on the characteristics of the target heavy oil reservoir, micromodels were designed and manufactured to conduct microfluidic experiments. The results obtained from imaging and video recording were analyzed qualitatively and quantitatively to explore the differences in effects and mechanisms between the two rhamnolipid systems. Results indicate that typical rhamnolipid increased recovery by 4.41% through delayed mechanisms involving wettability modification and residual oil emulsification. Conversely, high-yield rhamnolipid demonstrates an immediate effect by reducing interfacial tension, resulting in a recovery increase in 5.68%. According to the observed experimental phenomena and analytical trends, the conclusions evaluate the production increase, clarify the differences in mechanisms of action, and enhance the microscopic understanding of these surfactants. These findings provide directions for future investigations and serve as a reference for the design of related schemes. |
doi_str_mv | 10.1063/5.0237806 |
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As a widely researched biosurfactant, rhamnolipids possess several advantages over traditional chemical surfactants, including non-toxicity, eco-friendliness, biodegradability, and biocompatibility, particularly in the context of microbial oil recovery applications. This class of surfactants enhances oil recovery by reducing the interfacial tension between oil and water, emulsifying residual oil, and modifying the wettability of rock surfaces. Furthermore, rhamnolipids maintain stability in high-temperature and high-salinity environments. However, rhamnolipids derived from different fermentation substrates exhibit variations in structure, composition, and properties, resulting in distinct displacement effects and mechanisms of action. This study focuses on two types of rhamnolipids: typical rhamnolipid and high-yield rhamnolipid, which are fermented using glycerol and rapeseed oil, respectively. Based on the characteristics of the target heavy oil reservoir, micromodels were designed and manufactured to conduct microfluidic experiments. The results obtained from imaging and video recording were analyzed qualitatively and quantitatively to explore the differences in effects and mechanisms between the two rhamnolipid systems. Results indicate that typical rhamnolipid increased recovery by 4.41% through delayed mechanisms involving wettability modification and residual oil emulsification. Conversely, high-yield rhamnolipid demonstrates an immediate effect by reducing interfacial tension, resulting in a recovery increase in 5.68%. According to the observed experimental phenomena and analytical trends, the conclusions evaluate the production increase, clarify the differences in mechanisms of action, and enhance the microscopic understanding of these surfactants. These findings provide directions for future investigations and serve as a reference for the design of related schemes.</description><identifier>ISSN: 1070-6631</identifier><identifier>EISSN: 1089-7666</identifier><identifier>DOI: 10.1063/5.0237806</identifier><identifier>CODEN: PHFLE6</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Biocompatibility ; Emulsification ; Fermentation ; High temperature ; Microorganisms ; Oil recovery ; Production increases ; Rapeseed ; Rhamnolipids ; Surface tension ; Surfactants ; Wettability</subject><ispartof>Physics of fluids (1994), 2024-11, Vol.36 (11)</ispartof><rights>Author(s)</rights><rights>2024 Author(s). Published under an exclusive license by AIP Publishing.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c182t-a106d308305b5c4eb65ddbaa89c0732dbc18bf2787007639cb86bbdd567bc9503</cites><orcidid>0000-0003-4820-6553</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,790,4498,27903,27904</link.rule.ids></links><search><creatorcontrib>Ma, Mengqi</creatorcontrib><creatorcontrib>Li, Junjian</creatorcontrib><creatorcontrib>Hu, Jing</creatorcontrib><creatorcontrib>Li, Jiamu</creatorcontrib><creatorcontrib>Dong, Lirong</creatorcontrib><creatorcontrib>Ding, Jialei</creatorcontrib><creatorcontrib>Jiang, Hanqiao</creatorcontrib><title>Study on the differences in microscopic oil displacement effects and action mechanisms of different rhamnolipid systems</title><title>Physics of fluids (1994)</title><description>Rhamnolipids are a class of anionic glycolipid surfactants produced through microbial metabolism. As a widely researched biosurfactant, rhamnolipids possess several advantages over traditional chemical surfactants, including non-toxicity, eco-friendliness, biodegradability, and biocompatibility, particularly in the context of microbial oil recovery applications. This class of surfactants enhances oil recovery by reducing the interfacial tension between oil and water, emulsifying residual oil, and modifying the wettability of rock surfaces. Furthermore, rhamnolipids maintain stability in high-temperature and high-salinity environments. However, rhamnolipids derived from different fermentation substrates exhibit variations in structure, composition, and properties, resulting in distinct displacement effects and mechanisms of action. This study focuses on two types of rhamnolipids: typical rhamnolipid and high-yield rhamnolipid, which are fermented using glycerol and rapeseed oil, respectively. Based on the characteristics of the target heavy oil reservoir, micromodels were designed and manufactured to conduct microfluidic experiments. The results obtained from imaging and video recording were analyzed qualitatively and quantitatively to explore the differences in effects and mechanisms between the two rhamnolipid systems. Results indicate that typical rhamnolipid increased recovery by 4.41% through delayed mechanisms involving wettability modification and residual oil emulsification. Conversely, high-yield rhamnolipid demonstrates an immediate effect by reducing interfacial tension, resulting in a recovery increase in 5.68%. According to the observed experimental phenomena and analytical trends, the conclusions evaluate the production increase, clarify the differences in mechanisms of action, and enhance the microscopic understanding of these surfactants. These findings provide directions for future investigations and serve as a reference for the design of related schemes.</description><subject>Biocompatibility</subject><subject>Emulsification</subject><subject>Fermentation</subject><subject>High temperature</subject><subject>Microorganisms</subject><subject>Oil recovery</subject><subject>Production increases</subject><subject>Rapeseed</subject><subject>Rhamnolipids</subject><subject>Surface tension</subject><subject>Surfactants</subject><subject>Wettability</subject><issn>1070-6631</issn><issn>1089-7666</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWD8O_oOAJ4Wts5tukj1K8QsKHtTzkq-lKd1kzaRI_727tHj0NAPz8A7PS8hNCfMSOHuo51AxIYGfkFkJsikE5_x02gUUnLPynFwgbgCANRWfkZ-PvLN7GgPNa0et7zqXXDAOqQ-09yZFNHHwhka_Hc84bJVxvQuZuhE1GakKliqT_RjRO7NWwWOPNHZ_YZmmtepD3PrBW4p7zK7HK3LWqS266-O8JF_PT5_L12L1_vK2fFwVppRVLtQoZRlIBrWuzcJpXlurlZKNAcEqq0dMd5WQAkBw1hgtudbW1lxo09TALsntIXdI8XvnMLebuEthfNmysmokY7CYqLsDNflicl07JN-rtG9LaKde27o99jqy9wcWjc9q8v4H_gW1v3ma</recordid><startdate>202411</startdate><enddate>202411</enddate><creator>Ma, Mengqi</creator><creator>Li, Junjian</creator><creator>Hu, Jing</creator><creator>Li, Jiamu</creator><creator>Dong, Lirong</creator><creator>Ding, Jialei</creator><creator>Jiang, Hanqiao</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-4820-6553</orcidid></search><sort><creationdate>202411</creationdate><title>Study on the differences in microscopic oil displacement effects and action mechanisms of different rhamnolipid systems</title><author>Ma, Mengqi ; Li, Junjian ; Hu, Jing ; Li, Jiamu ; Dong, Lirong ; Ding, Jialei ; Jiang, Hanqiao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c182t-a106d308305b5c4eb65ddbaa89c0732dbc18bf2787007639cb86bbdd567bc9503</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Biocompatibility</topic><topic>Emulsification</topic><topic>Fermentation</topic><topic>High temperature</topic><topic>Microorganisms</topic><topic>Oil recovery</topic><topic>Production increases</topic><topic>Rapeseed</topic><topic>Rhamnolipids</topic><topic>Surface tension</topic><topic>Surfactants</topic><topic>Wettability</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ma, Mengqi</creatorcontrib><creatorcontrib>Li, Junjian</creatorcontrib><creatorcontrib>Hu, Jing</creatorcontrib><creatorcontrib>Li, Jiamu</creatorcontrib><creatorcontrib>Dong, Lirong</creatorcontrib><creatorcontrib>Ding, Jialei</creatorcontrib><creatorcontrib>Jiang, Hanqiao</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physics of fluids (1994)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ma, Mengqi</au><au>Li, Junjian</au><au>Hu, Jing</au><au>Li, Jiamu</au><au>Dong, Lirong</au><au>Ding, Jialei</au><au>Jiang, Hanqiao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study on the differences in microscopic oil displacement effects and action mechanisms of different rhamnolipid systems</atitle><jtitle>Physics of fluids (1994)</jtitle><date>2024-11</date><risdate>2024</risdate><volume>36</volume><issue>11</issue><issn>1070-6631</issn><eissn>1089-7666</eissn><coden>PHFLE6</coden><abstract>Rhamnolipids are a class of anionic glycolipid surfactants produced through microbial metabolism. As a widely researched biosurfactant, rhamnolipids possess several advantages over traditional chemical surfactants, including non-toxicity, eco-friendliness, biodegradability, and biocompatibility, particularly in the context of microbial oil recovery applications. This class of surfactants enhances oil recovery by reducing the interfacial tension between oil and water, emulsifying residual oil, and modifying the wettability of rock surfaces. Furthermore, rhamnolipids maintain stability in high-temperature and high-salinity environments. However, rhamnolipids derived from different fermentation substrates exhibit variations in structure, composition, and properties, resulting in distinct displacement effects and mechanisms of action. This study focuses on two types of rhamnolipids: typical rhamnolipid and high-yield rhamnolipid, which are fermented using glycerol and rapeseed oil, respectively. Based on the characteristics of the target heavy oil reservoir, micromodels were designed and manufactured to conduct microfluidic experiments. The results obtained from imaging and video recording were analyzed qualitatively and quantitatively to explore the differences in effects and mechanisms between the two rhamnolipid systems. Results indicate that typical rhamnolipid increased recovery by 4.41% through delayed mechanisms involving wettability modification and residual oil emulsification. Conversely, high-yield rhamnolipid demonstrates an immediate effect by reducing interfacial tension, resulting in a recovery increase in 5.68%. According to the observed experimental phenomena and analytical trends, the conclusions evaluate the production increase, clarify the differences in mechanisms of action, and enhance the microscopic understanding of these surfactants. These findings provide directions for future investigations and serve as a reference for the design of related schemes.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/5.0237806</doi><tpages>16</tpages><orcidid>https://orcid.org/0000-0003-4820-6553</orcidid></addata></record> |
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subjects | Biocompatibility Emulsification Fermentation High temperature Microorganisms Oil recovery Production increases Rapeseed Rhamnolipids Surface tension Surfactants Wettability |
title | Study on the differences in microscopic oil displacement effects and action mechanisms of different rhamnolipid systems |
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