Predicting the electrokinetic properties of the crude oil/brine interface for enhanced oil recovery in low salinity water flooding
[Display omitted] •A triple-layer surface complexation model is proposed for the crude oil/brine interface.•The electrokinetic properties are determined and verified by experimental data.•The ions’ affinity toward the crude oil follows the order: Ca2+
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| Veröffentlicht in: | Fuel (Guildford) 2019-01, Vol.235, p.822-831 |
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| creator | Takeya, Miku Shimokawara, Mai Elakneswaran, Yogarajah Nawa, Toyoharu Takahashi, Satoru |
| description | [Display omitted]
•A triple-layer surface complexation model is proposed for the crude oil/brine interface.•The electrokinetic properties are determined and verified by experimental data.•The ions’ affinity toward the crude oil follows the order: Ca2+ |
| doi_str_mv | 10.1016/j.fuel.2018.08.079 |
| format | Article |
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•A triple-layer surface complexation model is proposed for the crude oil/brine interface.•The electrokinetic properties are determined and verified by experimental data.•The ions’ affinity toward the crude oil follows the order: Ca2+ < Mg2+ < OH−.•Electrical triple-layer expansion impacts more than just the surface charge at the crude oil/brine interface for EOR in LSWF.
The low-salinity waterflooding (LSWF) technique during enhanced oil recovery has received increasing attention over the last decade. Several studies have attempted to understand the effects of LSWF through both experiments and modelling, but their results are inconsistent due to a lack of understanding of the crude oil/brine and brine/rock interfaces. In this paper, the crude oil/brine interface was studied by developing a triple-layer surface complexation model. The carboxyl groups (–COOH) were attributed to the surface charge and electrical triple-layer development of the crude oil in LSWF. The zeta potentials of the emulsion at various pH levels and the calcium and magnesium concentrations were measured to examine the interface. These data were then directly fitted to the simulated zeta potentials to determine the surface site density of –COOH and the associated equilibrium constants for the dissociation and adsorption of calcium and magnesium. The –COOH site density was determined by fitting the pH-independent zeta potential, while the equilibrium constant values were estimated from the variations in the zeta potential with the changes in pH and the concentrations of calcium and magnesium. The determined surface complexation parameters were validated by comparing the experimental zeta potential data from different ionic solutions. The developed surface complexation model was used along with the estimated parameters to predict the interface of crude oil in seawater, formation water, and their dilutions. The simulated zeta potential results agreed well with the experimental data, demonstrating that the model is applicable to understand the crude oil/brine interface in LSWF. Finally, the importance of the prediction of the surface and zeta potentials in the evaluation of the interface and the estimation of electrostatic forces, and thus the wettability alteration, was discussed.</description><identifier>ISSN: 0016-2361</identifier><identifier>EISSN: 1873-7153</identifier><identifier>DOI: 10.1016/j.fuel.2018.08.079</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Calcium ; Chemical equilibrium ; Complexation ; Computer simulation ; Crude oil ; Density ; Electrical triple-layer ; Electrokinetics ; Electrostatic properties ; Enhanced oil recovery ; Flooding ; Interfaces ; IOR/EOR ; Kinetics ; Low salinity water ; Magnesium ; Mathematical models ; Oil recovery ; Parameter estimation ; pH effects ; Predictions ; Saline water ; Salinity ; Salinity effects ; Seawater ; Surface charge ; Surface complexation model ; Water flooding ; Wettability ; Zeta potential</subject><ispartof>Fuel (Guildford), 2019-01, Vol.235, p.822-831</ispartof><rights>2018 Elsevier Ltd</rights><rights>Copyright Elsevier BV Jan 1, 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c519t-317622c12a3dab0577b4e88f55c13b0aec31909b880c70b9064d146476b202203</citedby><cites>FETCH-LOGICAL-c519t-317622c12a3dab0577b4e88f55c13b0aec31909b880c70b9064d146476b202203</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.fuel.2018.08.079$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Takeya, Miku</creatorcontrib><creatorcontrib>Shimokawara, Mai</creatorcontrib><creatorcontrib>Elakneswaran, Yogarajah</creatorcontrib><creatorcontrib>Nawa, Toyoharu</creatorcontrib><creatorcontrib>Takahashi, Satoru</creatorcontrib><title>Predicting the electrokinetic properties of the crude oil/brine interface for enhanced oil recovery in low salinity water flooding</title><title>Fuel (Guildford)</title><description>[Display omitted]
•A triple-layer surface complexation model is proposed for the crude oil/brine interface.•The electrokinetic properties are determined and verified by experimental data.•The ions’ affinity toward the crude oil follows the order: Ca2+ < Mg2+ < OH−.•Electrical triple-layer expansion impacts more than just the surface charge at the crude oil/brine interface for EOR in LSWF.
The low-salinity waterflooding (LSWF) technique during enhanced oil recovery has received increasing attention over the last decade. Several studies have attempted to understand the effects of LSWF through both experiments and modelling, but their results are inconsistent due to a lack of understanding of the crude oil/brine and brine/rock interfaces. In this paper, the crude oil/brine interface was studied by developing a triple-layer surface complexation model. The carboxyl groups (–COOH) were attributed to the surface charge and electrical triple-layer development of the crude oil in LSWF. The zeta potentials of the emulsion at various pH levels and the calcium and magnesium concentrations were measured to examine the interface. These data were then directly fitted to the simulated zeta potentials to determine the surface site density of –COOH and the associated equilibrium constants for the dissociation and adsorption of calcium and magnesium. The –COOH site density was determined by fitting the pH-independent zeta potential, while the equilibrium constant values were estimated from the variations in the zeta potential with the changes in pH and the concentrations of calcium and magnesium. The determined surface complexation parameters were validated by comparing the experimental zeta potential data from different ionic solutions. The developed surface complexation model was used along with the estimated parameters to predict the interface of crude oil in seawater, formation water, and their dilutions. The simulated zeta potential results agreed well with the experimental data, demonstrating that the model is applicable to understand the crude oil/brine interface in LSWF. Finally, the importance of the prediction of the surface and zeta potentials in the evaluation of the interface and the estimation of electrostatic forces, and thus the wettability alteration, was discussed.</description><subject>Calcium</subject><subject>Chemical equilibrium</subject><subject>Complexation</subject><subject>Computer simulation</subject><subject>Crude oil</subject><subject>Density</subject><subject>Electrical triple-layer</subject><subject>Electrokinetics</subject><subject>Electrostatic properties</subject><subject>Enhanced oil recovery</subject><subject>Flooding</subject><subject>Interfaces</subject><subject>IOR/EOR</subject><subject>Kinetics</subject><subject>Low salinity water</subject><subject>Magnesium</subject><subject>Mathematical models</subject><subject>Oil recovery</subject><subject>Parameter estimation</subject><subject>pH effects</subject><subject>Predictions</subject><subject>Saline water</subject><subject>Salinity</subject><subject>Salinity effects</subject><subject>Seawater</subject><subject>Surface charge</subject><subject>Surface complexation model</subject><subject>Water flooding</subject><subject>Wettability</subject><subject>Zeta potential</subject><issn>0016-2361</issn><issn>1873-7153</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQhi0EEqXwB5gsMac920mcSCyo4kuqBAPMluNcqEuIi-0WdeWX41BmpJNued77eAi5ZDBjwMr5etZtsZ9xYNUMUsn6iExYJUUmWSGOyQQSlXFRslNyFsIaAGRV5BPy_eyxtSba4Y3GFVLs0UTv3u2A0Rq68W6DPloM1HW_gPHbFqmz_bzxCaJ2iOg7bZB2zlMcVnow2I4A9WjcDv0-MbR3XzTo3g427umXThna9c61ae85Oel0H_Dir0_J693ty-IhWz7dPy5ulpkpWB0zwWTJuWFci1Y3UEjZ5FhVXVEYJhrQaASroW6qCoyEpoYyb1le5rJsOHAOYkquDnPTU59bDFGt3dYPaaXiTICUCasSxQ-U8S4Ej53aePuh_V4xUKNrtVajazW6VpBK1il0fQhhun9n0atgLI4ibJIQVevsf_EfB62JYw</recordid><startdate>20190101</startdate><enddate>20190101</enddate><creator>Takeya, Miku</creator><creator>Shimokawara, Mai</creator><creator>Elakneswaran, Yogarajah</creator><creator>Nawa, Toyoharu</creator><creator>Takahashi, Satoru</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7T7</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope></search><sort><creationdate>20190101</creationdate><title>Predicting the electrokinetic properties of the crude oil/brine interface for enhanced oil recovery in low salinity water flooding</title><author>Takeya, Miku ; Shimokawara, Mai ; Elakneswaran, Yogarajah ; Nawa, Toyoharu ; Takahashi, Satoru</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c519t-317622c12a3dab0577b4e88f55c13b0aec31909b880c70b9064d146476b202203</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Calcium</topic><topic>Chemical equilibrium</topic><topic>Complexation</topic><topic>Computer simulation</topic><topic>Crude oil</topic><topic>Density</topic><topic>Electrical triple-layer</topic><topic>Electrokinetics</topic><topic>Electrostatic properties</topic><topic>Enhanced oil recovery</topic><topic>Flooding</topic><topic>Interfaces</topic><topic>IOR/EOR</topic><topic>Kinetics</topic><topic>Low salinity water</topic><topic>Magnesium</topic><topic>Mathematical models</topic><topic>Oil recovery</topic><topic>Parameter estimation</topic><topic>pH effects</topic><topic>Predictions</topic><topic>Saline water</topic><topic>Salinity</topic><topic>Salinity effects</topic><topic>Seawater</topic><topic>Surface charge</topic><topic>Surface complexation model</topic><topic>Water flooding</topic><topic>Wettability</topic><topic>Zeta potential</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Takeya, Miku</creatorcontrib><creatorcontrib>Shimokawara, Mai</creatorcontrib><creatorcontrib>Elakneswaran, Yogarajah</creatorcontrib><creatorcontrib>Nawa, Toyoharu</creatorcontrib><creatorcontrib>Takahashi, Satoru</creatorcontrib><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Fuel (Guildford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Takeya, Miku</au><au>Shimokawara, Mai</au><au>Elakneswaran, Yogarajah</au><au>Nawa, Toyoharu</au><au>Takahashi, Satoru</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Predicting the electrokinetic properties of the crude oil/brine interface for enhanced oil recovery in low salinity water flooding</atitle><jtitle>Fuel (Guildford)</jtitle><date>2019-01-01</date><risdate>2019</risdate><volume>235</volume><spage>822</spage><epage>831</epage><pages>822-831</pages><issn>0016-2361</issn><eissn>1873-7153</eissn><abstract>[Display omitted]
•A triple-layer surface complexation model is proposed for the crude oil/brine interface.•The electrokinetic properties are determined and verified by experimental data.•The ions’ affinity toward the crude oil follows the order: Ca2+ < Mg2+ < OH−.•Electrical triple-layer expansion impacts more than just the surface charge at the crude oil/brine interface for EOR in LSWF.
The low-salinity waterflooding (LSWF) technique during enhanced oil recovery has received increasing attention over the last decade. Several studies have attempted to understand the effects of LSWF through both experiments and modelling, but their results are inconsistent due to a lack of understanding of the crude oil/brine and brine/rock interfaces. In this paper, the crude oil/brine interface was studied by developing a triple-layer surface complexation model. The carboxyl groups (–COOH) were attributed to the surface charge and electrical triple-layer development of the crude oil in LSWF. The zeta potentials of the emulsion at various pH levels and the calcium and magnesium concentrations were measured to examine the interface. These data were then directly fitted to the simulated zeta potentials to determine the surface site density of –COOH and the associated equilibrium constants for the dissociation and adsorption of calcium and magnesium. The –COOH site density was determined by fitting the pH-independent zeta potential, while the equilibrium constant values were estimated from the variations in the zeta potential with the changes in pH and the concentrations of calcium and magnesium. The determined surface complexation parameters were validated by comparing the experimental zeta potential data from different ionic solutions. The developed surface complexation model was used along with the estimated parameters to predict the interface of crude oil in seawater, formation water, and their dilutions. The simulated zeta potential results agreed well with the experimental data, demonstrating that the model is applicable to understand the crude oil/brine interface in LSWF. Finally, the importance of the prediction of the surface and zeta potentials in the evaluation of the interface and the estimation of electrostatic forces, and thus the wettability alteration, was discussed.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.fuel.2018.08.079</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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| subjects | Calcium Chemical equilibrium Complexation Computer simulation Crude oil Density Electrical triple-layer Electrokinetics Electrostatic properties Enhanced oil recovery Flooding Interfaces IOR/EOR Kinetics Low salinity water Magnesium Mathematical models Oil recovery Parameter estimation pH effects Predictions Saline water Salinity Salinity effects Seawater Surface charge Surface complexation model Water flooding Wettability Zeta potential |
| title | Predicting the electrokinetic properties of the crude oil/brine interface for enhanced oil recovery in low salinity water flooding |
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