<?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>S0122-53832023000100087</article-id>
<article-id pub-id-type="doi">10.29047/01225383.664</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[PLANNING MODEL FOR NATURAL GAS COMMERCIALIZATION WITH LEGAL AND OPERATIONAL CONSTRAINTS]]></article-title>
<article-title xml:lang="es"><![CDATA[MODELO DE PLANEACIÓN PARA LA COMERCIALIZACIÓN DE GAS NATURAL CON RESTRICCIONES LEGALES Y OPERACIONALES]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Saravia]]></surname>
<given-names><![CDATA[Rafael-Cristóbal]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Roa-Duarte]]></surname>
<given-names><![CDATA[Carlos-Efraín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Palomares-Quintero]]></surname>
<given-names><![CDATA[Juan-Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Medina]]></surname>
<given-names><![CDATA[Orlando A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gámez]]></surname>
<given-names><![CDATA[Jorge-Mario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yaya-Bravo]]></surname>
<given-names><![CDATA[Julián-Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hoyos-Marin]]></surname>
<given-names><![CDATA[Luis-Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Pensemossi  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Ecopetrol S.A Centro de Innovación y Tecnología - ICP ]]></institution>
<addr-line><![CDATA[ Santander]]></addr-line>
</aff>
<aff id="Af3">
<institution><![CDATA[,Ecopetrol S.A Vicepresidencia de Bajas Emisiones ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2023</year>
</pub-date>
<volume>13</volume>
<numero>1</numero>
<fpage>87</fpage>
<lpage>102</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-53832023000100087&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-53832023000100087&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-53832023000100087&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT This paper presents a mathematical model for planning optimization of the gas supply chain of a company that is a producer, trader, and gas consumer for its operations, but does not transport it, according to the guidelines of the Colombian government. The model optimizes the profit of the modeled company based on (i) the availability and demand of the modeled company, (ii) public information from other gas-producing and consuming companies, and (iii) demand-serving priorities. The model is formulated as a single-period non-linear programming (NLP) model that optimizes the natural gas allocations and the total profit of the company considering production, transportation, prioritization, and economic constraints. Due to prioritization constraints, the model is formulated as a optimization problem that is solved with the lexicographical method. The proposed model stands out for its ability to be used as a decision support tool for natural gas supply planners in Colombia due to its considerations of the technical, legal, contractual, and regulatory aspects of natural gas production in the country.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Este artículo presenta un modelo matemático para la optimización de la planeación de la cadena de suministro de gas de una empresa que es productora, comercializadora y consumidora de gas para sus operaciones, pero no lo transporta, de acuerdo con los lineamientos del gobierno colombiano. El modelo optimiza las ganancias de la empresa modelada en función de (i) la disponibilidad y la demanda de gas de la empresa modelada, (ii) la información pública de otras empresas productoras y consumidoras de gas, y (iii) las prioridades de atención de la demanda. El modelo está formulado como un modelo de programación no lineal (NLP) de un solo período que optimiza las asignaciones de gas natural y las ganancias totales de la empresa considerando restricciones de producción, transporte, priorización y económicas. Debido a restricciones de priorización, el modelo se formula como un problema de optimización que se resuelve con el método lexicográfico. El modelo propuesto destaca por su capacidad de ser utilizado como herramienta de apoyo a la decisión de los planificadores del suministro de gas natural en Colombia debido a sus consideraciones de los aspectos técnicos, legales, contractuales y regulatorios de la producción de gas natural en el país.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Gas natural]]></kwd>
<kwd lng="en"><![CDATA[Cadena de valor]]></kwd>
<kwd lng="en"><![CDATA[NLP]]></kwd>
<kwd lng="en"><![CDATA[Método lexicográfico]]></kwd>
<kwd lng="en"><![CDATA[Modelo de optimización]]></kwd>
<kwd lng="en"><![CDATA[Colombia]]></kwd>
<kwd lng="es"><![CDATA[Natural gas]]></kwd>
<kwd lng="es"><![CDATA[Value chain]]></kwd>
<kwd lng="es"><![CDATA[NLP]]></kwd>
<kwd lng="es"><![CDATA[Lexicographic method]]></kwd>
<kwd lng="es"><![CDATA[Optimization model]]></kwd>
<kwd lng="es"><![CDATA[Colombia]]></kwd>
</kwd-group>
</article-meta>
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