<?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>0120-0283</journal-id>
<journal-title><![CDATA[Boletín de Geología]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. geol.]]></abbrev-journal-title>
<issn>0120-0283</issn>
<publisher>
<publisher-name><![CDATA[Universidad Industrial de Santander]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-02832021000200063</article-id>
<article-id pub-id-type="doi">10.18273/revbol.v43n2-2021004</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Metodología visual y cuantitativa para la identificación de zonas de interés en yacimientos de roca generadora]]></article-title>
<article-title xml:lang="en"><![CDATA[Visual and quantitative methodology to identify zones of interest within source rock reservoirs]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz-Murcia]]></surname>
<given-names><![CDATA[Rubén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juliao-Lemus]]></surname>
<given-names><![CDATA[Tatiana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Edgar Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Obando-Yaguas]]></surname>
<given-names><![CDATA[Ayerim]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-Vega]]></surname>
<given-names><![CDATA[Héctor Hugo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Ecopetrol  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2021</year>
</pub-date>
<volume>43</volume>
<numero>2</numero>
<fpage>63</fpage>
<lpage>77</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-02832021000200063&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-02832021000200063&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-02832021000200063&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Alrededor de 16500 resultados de análisis de laboratorio de petrofísica básica y especial, geoquímica, petrografía orgánica, difracción de rayos X, petrografía y SEM han sido obtenidos a partir de muestras de roca (core, sidewall core y ripios), provenientes de formaciones colombianas en etapa de exploración y delimitación como Yacimientos de Roca Generadora (YRG). Contar con gran cantidad de información hace necesaria la implementación de metodologías eficientes para evaluar e identificar zonas potencialmente productoras. Existen diversos enfoques que plantean diferentes flujos de trabajo; algunos enfoques se concentran en aspectos composicionales, así como otros dan prioridad a las características geoquímicas, otros en cambio se basan en el concepto de unidades de flujo, otros se centran en la definición de litofacies, o electrofacies, mientras que otros integran diferentes tipos de parámetros. La metodología aquí presentada posee un enfoque integrador. Esta metodología parte de una recopilación de criterios mineralógicos, petrofísicos, geoquímicos y geomecánicos encontrados en la literatura y aplicables a YRG; se incluyen criterios propuestos por los autores teniendo en cuenta el comportamiento observado en las formaciones colombianas. Estos criterios, expresados a manera de cut-offs, son el soporte de las dos herramientas de interpretación que proporciona esta metodología: (1) un indicador visual equivalente a un mapa de calidad que permite distinguir las mejores zonas a través de una escala de color; (2) dos subindicadores heurísticos (índice de calidad (QI) y suma máxima (SumMax)) los cuales generan una valoración cuantitativa que depende de la calidad y del grado de importancia de cada parámetro, el cual es ajustado por medio de factores de ponderación. Como resultado, se desarrolló una metodología que incorpora criterios de evaluación provenientes de diferentes disciplinas implicadas en la evaluación de YRG, los cuales son ponderados de acuerdo con su importancia y considerados simultáneamente para la determinación de intervalos potencialmente productores.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Around 16500 results from laboratory analysis of routine and special core analysis, geochemistry, organic petrography, X-ray diffraction, optical petrology, SEM and geomechanics have been obtained from rock samples (core, sidewall core and cuttings) of Colombian formations on exploratory and delimitation stage as Source Rock Reservoirs (SRRs). Having a large amount of information makes necessary to adopt efficient methodologies to evaluate and identify potentially producing areas. There are various approaches that propose different workflows; some of these flows take the compositional aspect as the central axis of work, while others are based on the concept of flow units; some others focus their work on lithofacies, or electrofacies, while others give priority to geochemical characteristics or the integration of different types of parameters. The methodology proposed here has an integrative approach. This methodology starts from a collection of mineralogical, petrophysical, geochemical and geomechanical criteria found in the literature, aimed at SRRs; additionally, other criteria have been proposed by the authors taking into account the behavior observed in Colombian formations. These criteria, presented as cut-offs, are the support of the two interpretation tools provided by this methodology: (1) a visual indicator equivalent to a quality map allowing the best areas to be distinguished by means of a color scale; (2) two heuristic sub-indicators (quality index (QI) and maximum sum (SumMax)) which generate a quantitative assessment depending on the quality and degree of importance of each parameter, which is adjusted by means of weighting factors. As a result, a methodology was developed integrating evaluation criteria from different disciplines involved in the evaluation of SRRs. These criteria are weighted according to their importance and considered simultaneously in the determination of potentially producing intervals.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Roca generadora]]></kwd>
<kwd lng="es"><![CDATA[Shale]]></kwd>
<kwd lng="es"><![CDATA[Shale gas]]></kwd>
<kwd lng="es"><![CDATA[Shale oil]]></kwd>
<kwd lng="es"><![CDATA[Caracterización de yacimientos]]></kwd>
<kwd lng="es"><![CDATA[Colombia.]]></kwd>
<kwd lng="en"><![CDATA[Source rock]]></kwd>
<kwd lng="en"><![CDATA[Shale]]></kwd>
<kwd lng="en"><![CDATA[Shale gas]]></kwd>
<kwd lng="en"><![CDATA[Shale oil]]></kwd>
<kwd lng="en"><![CDATA[Reservoir characterization]]></kwd>
<kwd lng="en"><![CDATA[Colombia.]]></kwd>
</kwd-group>
</article-meta>
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