Evaluation of oil-in-water microemulsion base ethoxylated surfactant under acid conditions
•Acid did not significantly change the microemulsion droplet size.•The rheological behavior of microemulsions studied were Newtonian.•The acid-carbonate wettability is enhanced in microemulsion media. This work investigates the stability of oil-in-water microemulsions prepared with nonionic surfacta...
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| Veröffentlicht in: | Fuel (Guildford) 2021-04, Vol.290, p.120045, Article 120045 |
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| creator | Aum, Pedro Tupã Pandava Gurgel Aum, Yanne K. Pereira de Andrade Araújo, Edson de Almeida Cavalcante, Luyara Nobre Nunes da Silva, Daniel Regis dos Santos Lucas, Cláudio de Castro Dantas, Tereza Neuma |
| description | •Acid did not significantly change the microemulsion droplet size.•The rheological behavior of microemulsions studied were Newtonian.•The acid-carbonate wettability is enhanced in microemulsion media.
This work investigates the stability of oil-in-water microemulsions prepared with nonionic surfactants under acid conditions and their interaction with a carbonate formation. The microemulsions were prepared with different acid concentrations. Measures of droplet size diameter, rheology, and surface tensions were performed. To evaluate the dynamic spreading behavior of the acid microemulsion on the carbonate rock surface, the contact angle of the acid systems was measured in time. Our results demonstrate that presence of the acid increases the stability of the microemulsion systems studied. We also observed that the rheological behavior is Newtonian, and the acid concentration affects only the viscosity. Our findings also indicate that microemulsions alter the pattern of spreading of the acid systems on the carbonate rock surface, rendering the outer acid solution more wettable to the carbonate rock. Thus, this study contributes to a better understanding of microemulsion formulated with nonionic surfactants, under acid conditions, and how they interact with the carbonate rock. |
| doi_str_mv | 10.1016/j.fuel.2020.120045 |
| format | Article |
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This work investigates the stability of oil-in-water microemulsions prepared with nonionic surfactants under acid conditions and their interaction with a carbonate formation. The microemulsions were prepared with different acid concentrations. Measures of droplet size diameter, rheology, and surface tensions were performed. To evaluate the dynamic spreading behavior of the acid microemulsion on the carbonate rock surface, the contact angle of the acid systems was measured in time. Our results demonstrate that presence of the acid increases the stability of the microemulsion systems studied. We also observed that the rheological behavior is Newtonian, and the acid concentration affects only the viscosity. Our findings also indicate that microemulsions alter the pattern of spreading of the acid systems on the carbonate rock surface, rendering the outer acid solution more wettable to the carbonate rock. Thus, this study contributes to a better understanding of microemulsion formulated with nonionic surfactants, under acid conditions, and how they interact with the carbonate rock.</description><identifier>ISSN: 0016-2361</identifier><identifier>EISSN: 1873-7153</identifier><identifier>DOI: 10.1016/j.fuel.2020.120045</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Acid microemulsion ; Acids ; Carbonate rocks ; Contact angle ; Diameters ; Evaluation ; HCl ; Matrix acidizing ; Microemulsions ; Nonionic surfactants ; Phase behavior ; Rheological properties ; Rheology ; Stability ; Surfactants ; Wettability</subject><ispartof>Fuel (Guildford), 2021-04, Vol.290, p.120045, Article 120045</ispartof><rights>2020 Elsevier Ltd</rights><rights>Copyright Elsevier BV Apr 15, 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-e5ae322fb17bd7ff15e89d0141ba49cac063ad1c3744618b37d4a96ecc5e50a03</citedby><cites>FETCH-LOGICAL-c328t-e5ae322fb17bd7ff15e89d0141ba49cac063ad1c3744618b37d4a96ecc5e50a03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0016236120330428$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,65309</link.rule.ids></links><search><creatorcontrib>Aum, Pedro Tupã Pandava</creatorcontrib><creatorcontrib>Gurgel Aum, Yanne K. Pereira</creatorcontrib><creatorcontrib>de Andrade Araújo, Edson</creatorcontrib><creatorcontrib>de Almeida Cavalcante, Luyara</creatorcontrib><creatorcontrib>Nobre Nunes da Silva, Daniel</creatorcontrib><creatorcontrib>Regis dos Santos Lucas, Cláudio</creatorcontrib><creatorcontrib>de Castro Dantas, Tereza Neuma</creatorcontrib><title>Evaluation of oil-in-water microemulsion base ethoxylated surfactant under acid conditions</title><title>Fuel (Guildford)</title><description>•Acid did not significantly change the microemulsion droplet size.•The rheological behavior of microemulsions studied were Newtonian.•The acid-carbonate wettability is enhanced in microemulsion media.
This work investigates the stability of oil-in-water microemulsions prepared with nonionic surfactants under acid conditions and their interaction with a carbonate formation. The microemulsions were prepared with different acid concentrations. Measures of droplet size diameter, rheology, and surface tensions were performed. To evaluate the dynamic spreading behavior of the acid microemulsion on the carbonate rock surface, the contact angle of the acid systems was measured in time. Our results demonstrate that presence of the acid increases the stability of the microemulsion systems studied. We also observed that the rheological behavior is Newtonian, and the acid concentration affects only the viscosity. Our findings also indicate that microemulsions alter the pattern of spreading of the acid systems on the carbonate rock surface, rendering the outer acid solution more wettable to the carbonate rock. Thus, this study contributes to a better understanding of microemulsion formulated with nonionic surfactants, under acid conditions, and how they interact with the carbonate rock.</description><subject>Acid microemulsion</subject><subject>Acids</subject><subject>Carbonate rocks</subject><subject>Contact angle</subject><subject>Diameters</subject><subject>Evaluation</subject><subject>HCl</subject><subject>Matrix acidizing</subject><subject>Microemulsions</subject><subject>Nonionic surfactants</subject><subject>Phase behavior</subject><subject>Rheological properties</subject><subject>Rheology</subject><subject>Stability</subject><subject>Surfactants</subject><subject>Wettability</subject><issn>0016-2361</issn><issn>1873-7153</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE1LAzEQhoMoWKt_wNOC56352E_wIqV-QMGLXryE2WSCWbabmmSr_nuz1LOngZn3fWfmIeSa0RWjrLrtV2bCYcUpTw1OaVGekAVrapHXrBSnZEGTKueiYufkIoSeUlo3ZbEg75sDDBNE68bMmczZIbdj_gURfbazyjvcTUOYpx0EzDB-uO-fIY11FiZvQEUYYzaNOulBWZ0pN2o7x4VLcmZgCHj1V5fk7WHzun7Kty-Pz-v7ba4Eb2KOJaDg3HSs7nRtDCuxaTVlBeugaBUoWgnQTIm6KCrWdKLWBbQVKlViSYGKJbk55u69-5wwRNm7yY9ppRSMiYY2bSuSih9V6acQPBq593YH_kcyKmeGspczQzkzlEeGyXR3NGG6_2DRy6Asjgq19aii1M7-Z_8Fq2x73A</recordid><startdate>20210415</startdate><enddate>20210415</enddate><creator>Aum, Pedro Tupã Pandava</creator><creator>Gurgel Aum, Yanne K. 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Pereira</au><au>de Andrade Araújo, Edson</au><au>de Almeida Cavalcante, Luyara</au><au>Nobre Nunes da Silva, Daniel</au><au>Regis dos Santos Lucas, Cláudio</au><au>de Castro Dantas, Tereza Neuma</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of oil-in-water microemulsion base ethoxylated surfactant under acid conditions</atitle><jtitle>Fuel (Guildford)</jtitle><date>2021-04-15</date><risdate>2021</risdate><volume>290</volume><spage>120045</spage><pages>120045-</pages><artnum>120045</artnum><issn>0016-2361</issn><eissn>1873-7153</eissn><abstract>•Acid did not significantly change the microemulsion droplet size.•The rheological behavior of microemulsions studied were Newtonian.•The acid-carbonate wettability is enhanced in microemulsion media.
This work investigates the stability of oil-in-water microemulsions prepared with nonionic surfactants under acid conditions and their interaction with a carbonate formation. The microemulsions were prepared with different acid concentrations. Measures of droplet size diameter, rheology, and surface tensions were performed. To evaluate the dynamic spreading behavior of the acid microemulsion on the carbonate rock surface, the contact angle of the acid systems was measured in time. Our results demonstrate that presence of the acid increases the stability of the microemulsion systems studied. We also observed that the rheological behavior is Newtonian, and the acid concentration affects only the viscosity. Our findings also indicate that microemulsions alter the pattern of spreading of the acid systems on the carbonate rock surface, rendering the outer acid solution more wettable to the carbonate rock. Thus, this study contributes to a better understanding of microemulsion formulated with nonionic surfactants, under acid conditions, and how they interact with the carbonate rock.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.fuel.2020.120045</doi></addata></record> |
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| subjects | Acid microemulsion Acids Carbonate rocks Contact angle Diameters Evaluation HCl Matrix acidizing Microemulsions Nonionic surfactants Phase behavior Rheological properties Rheology Stability Surfactants Wettability |
| title | Evaluation of oil-in-water microemulsion base ethoxylated surfactant under acid conditions |
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