<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0122-5383</journal-id>
<journal-title><![CDATA[CT&F - Ciencia, Tecnología y Futuro]]></journal-title>
<abbrev-journal-title><![CDATA[C.T.F Cienc. Tecnol. Futuro]]></abbrev-journal-title>
<issn>0122-5383</issn>
<publisher>
<publisher-name><![CDATA[Instituto Colombiano del Petróleo (ICP) - ECOPETROL S.A.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-53832024000200079</article-id>
<article-id pub-id-type="doi">10.29047/01225383.694</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[DESIGN AND EVALUATION OF A NANOFLUID CONTAINING MAGNETITE AND GRAPHENE OXIDE NANOCOMPOSITES TO PREVENT ASPHALTENES PRECIPITATION IN POROUS MEDIA]]></article-title>
<article-title xml:lang="es"><![CDATA[DISEÑO Y EVALUACION DE UN NANOFLUIDO CON NANOCOMPOSITOS DE OXIDO DE GRAFENO Y MAGNETITA PARA PREVENIR LA PRECIPITACION DE ASFALTENOS EN EL MEDIO POROSO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corredor-Marín]]></surname>
<given-names><![CDATA[Fabian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardenas-Montes]]></surname>
<given-names><![CDATA[Jose]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ariza-León]]></surname>
<given-names><![CDATA[Emiliano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mejía-Ospino]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Plata]]></surname>
<given-names><![CDATA[Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,PSL Proanalisis SAS  ]]></institution>
<addr-line><![CDATA[Floridablanca Santander]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Ecopetrol S.A.  ]]></institution>
<addr-line><![CDATA[Piedecuesta Santander]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga Santander]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2024</year>
</pub-date>
<volume>14</volume>
<numero>2</numero>
<fpage>79</fpage>
<lpage>91</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-53832024000200079&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-53832024000200079&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-53832024000200079&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The precipitation and destabilization of asphaltenes in mature oil fields pose significant challenges to the oil industry, leading to damage on the producing formation and the potential blockage of production facilities. Conventional removal and inhibition methods have proven to be costly and temporary, with no guarantee of preventing new asphaltene deposits. In this study, our focus is on the design and evaluation of a stable nanofluid composed of Fe3O4 (Magnetite) and GO (Graphene Oxide) nanocomposites as an effective asphaltene stabilization agent in Colombian crude oil. By functionalizing magnetite nanoparticles with graphene oxide, we achieved a significant improvement in their stability. Various surfactants were tested to enhance the nanoparticle stability, followed by viscosity modification using commercial additives to attain the desired stability. The stability of the nanofluid was thoroughly evaluated through Oliensis, SARA, flocculation, rheology, and physicochemical analyses. Additionally, fluid-fluid and fluid-rock interaction tests were conducted under reservoir conditions. The results demonstrated an impressive 48% reduction in asphaltene-induced damage and a positive change in wettability, leading to a remarkable 38% increase in the recovery factor observed in core analyses. This study provides a promising approach to mitigate asphaltene-related challenges in mature oil fields, ensuring formation integrity and enhancing production efficiency.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La precipitación y desestabilización de asfaltenos en campos petroleros maduros representan desafíos significativos para la industria petrolera, porque conlleva daños a la formación productiva y el potencial bloqueo de las facilidades de producción. Los métodos convencionales de eliminación e inhibición de asfaltenos han demostrado ser costosos y temporales, sin garantía de prevenir nuevos depósitos de estos. En este estudio, nuestro enfoque se centra en el diseño y evaluación de un nanofluido estable compuesto por nanocompuestos de Fe3O4 (magnetita) y GO (óxido de grafeno) como un agente eficaz de estabilización de asfaltenos en un crudo colombiano. Al funcionalizar nanopartículas de magnetita con óxido de grafeno, logramos una mejora significativa en su estabilidad. Se probaron varios surfactantes para mejorar la estabilidad de las nanopartículas, seguido de una modificación de la viscosidad mediante aditivos comerciales para lograr la estabilidad deseada. La estabilidad del nanofluido y su capacidad de inhibición fue evaluada exhaustivamente a través de análisis Oliensis, SARA, flocculación, reología y fisicoquímicos. Además, se realizaron pruebas de interacción fluido-fluido y fluido-roca bajo condiciones de yacimiento. Los resultados demostraron una impresionante reducción del 48% en los daños inducidos por asfaltenos y un cambio positivo en la mojabilidad, lo que llevó a un notable aumento del 38% en el factor de recobro, que fue observado en análisis de núcleos (Coreflooding). Este estudio proporciona un enfoque prometedor para mitigar los desafíos relacionados con asfaltenos en campos petroleros maduros, garantizando la integridad de la formación y mejorando la eficiencia de producción.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Magnetite]]></kwd>
<kwd lng="en"><![CDATA[asphaltene inhibition]]></kwd>
<kwd lng="en"><![CDATA[nanoparticles]]></kwd>
<kwd lng="en"><![CDATA[nanocomposites]]></kwd>
<kwd lng="en"><![CDATA[porous media]]></kwd>
<kwd lng="en"><![CDATA[iron oxide]]></kwd>
<kwd lng="en"><![CDATA[graphene oxide]]></kwd>
<kwd lng="en"><![CDATA[increase viscosity]]></kwd>
<kwd lng="en"><![CDATA[coreflooding]]></kwd>
<kwd lng="es"><![CDATA[Magnetita]]></kwd>
<kwd lng="es"><![CDATA[inhibición de asfaltenos]]></kwd>
<kwd lng="es"><![CDATA[nanopartículas]]></kwd>
<kwd lng="es"><![CDATA[nanocompuestos]]></kwd>
<kwd lng="es"><![CDATA[medios porosos]]></kwd>
<kwd lng="es"><![CDATA[óxido de hierro]]></kwd>
<kwd lng="es"><![CDATA[óxido de grafeno]]></kwd>
<kwd lng="es"><![CDATA[aumento de viscosidad]]></kwd>
</kwd-group>
</article-meta>
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