<?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>0012-7353</journal-id>
<journal-title><![CDATA[DYNA]]></journal-title>
<abbrev-journal-title><![CDATA[Dyna rev.fac.nac.minas]]></abbrev-journal-title>
<issn>0012-7353</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0012-73532022000100203</article-id>
<article-id pub-id-type="doi">10.15446/dyna.v89n220.94024</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Potential impacts by residual HPAM from a polymer injection process on the behavior of production fluids]]></article-title>
<article-title xml:lang="es"><![CDATA[Potenciales impactos de HPAM residual de un proceso de inyección de polímero en el comportamiento de los fluidos de producción]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ariza-Quiroga]]></surname>
<given-names><![CDATA[Caterine]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quintero-Pérez]]></surname>
<given-names><![CDATA[Henderson Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Torres-Camacho]]></surname>
<given-names><![CDATA[Carlos Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villar-García]]></surname>
<given-names><![CDATA[Alvaro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Navarro]]></surname>
<given-names><![CDATA[Samuel Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander Facultad de ingenierías fisicoquímicas ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Colombiano del Petróleo Ecopetrol-ICP  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2022</year>
</pub-date>
<volume>89</volume>
<numero>220</numero>
<fpage>203</fpage>
<lpage>209</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0012-73532022000100203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0012-73532022000100203&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0012-73532022000100203&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The physicochemical characteristics of production fluids derived from chemical recovery processes (crude-water emulsions) can be altered due to the presence of residual polymer, which can generate operational problems in lifting systems or surface facilities. In this research, the potential effects of residual HPAM on the production fluids were analyzed, making sensitivity in variables such as the residual polymer concentration, the water cut and, the amount of total dissolved solids (TDS) in the production water. It was observed that in the presence of partially hydrolyzed polyacrylamide (HPAM) the separation speed of the production fluids is improved, but the quality of the separated water decreases as the content of dispersed crude increases and the formation of more stable multiple emulsions promoted by the remnant of polymer in the aqueous phase.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las características fisicoquímicas de los fluidos de producción derivados de procesos de recobro químico (emulsiones crudo-agua), pueden alterarse debido a la presencia de polímero residual, lo que puede generar problemas operacionales en sistemas de levantamiento o facilidades de superficie. En esta investigación se analizaron los efectos potenciales de HPAM residual sobre los fluidos de producción, haciendo sensibilidad en variables como la concentración residual de polímero, el corte de agua y la cantidad de sólidos totales disueltos (TSD) en el agua de producción. Se observó que en presencia de poliacrilamida parcialmente hidrolizada (HPAM) mejora la velocidad de separación de los fluidos de producción, pero disminuye la calidad del agua separada al aumentar el contenido de crudo disperso y al formarse emulsiones múltiples más estables promovidas por el remanente de polímero en la fase acuosa.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Partially Hydrolyzed Polyacrylamide-HPAM]]></kwd>
<kwd lng="en"><![CDATA[oil-in-water O/W and water-in-oil W/O emulsions]]></kwd>
<kwd lng="en"><![CDATA[morphology of scattered droplets]]></kwd>
<kwd lng="en"><![CDATA[scattered droplet size distribution guidelines]]></kwd>
<kwd lng="en"><![CDATA[Separation water quality]]></kwd>
<kwd lng="es"><![CDATA[Poliacrilamida Parcialmente Hidrolizadas-HPAM]]></kwd>
<kwd lng="es"><![CDATA[emulsiones de aceite en agua O/W y agua en aceite W/O]]></kwd>
<kwd lng="es"><![CDATA[morfología de las gotas dispersas]]></kwd>
<kwd lng="es"><![CDATA[distribución de tamaño de gotas dispersas]]></kwd>
<kwd lng="es"><![CDATA[Calidad del agua de separación]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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