<?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>S0120-02832024000100103</article-id>
<article-id pub-id-type="doi">10.18273/revbol.v46n1-2024006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estimación de pérdidas de lodo a través de fracturas mediante modelamiento matemático y su validación mediante un modelo físico]]></article-title>
<article-title xml:lang="en"><![CDATA[Estimation of mud losses through fractures through mathematical modeling and its validation using a physical model]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vargas-Silva]]></surname>
<given-names><![CDATA[Diego]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Uribe-Joya]]></surname>
<given-names><![CDATA[Lorena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Calderón-Carrillo]]></surname>
<given-names><![CDATA[Zuly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bernal-Olaya]]></surname>
<given-names><![CDATA[Rocío]]></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[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<volume>46</volume>
<numero>1</numero>
<fpage>103</fpage>
<lpage>114</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-02832024000100103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-02832024000100103&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-02832024000100103&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las pérdidas de fluido pueden ocurrir a través de formaciones fracturadas o en zonas permeables, especialmente cuando hay bajas presiones. Este evento incrementa los tiempos no productivos en operaciones de perforación, lo que aumenta los costos. Lo anterior genera la necesidad de entender la interacción entre el fluido de perforación y las fracturas presentes en la formación. Para ello, se propone una metodología que tiene dos enfoques, uno numérico basado en modelos reológicos y balance de la ecuación de movimiento, y uno físico basado en la teoría de escalado. Para el modelo numérico se plantean las ecuaciones que permiten calcular el perfil de velocidad en función de las propiedades del fluido y geometría de fractura. Para el modelo físico se toman muestras de roca reales, se construye la fractura con un ancho y geometría controlada, a través del cual se hace circular un lodo, cuyas propiedades fueron escaladas y determinadas en laboratorio. Los resultados del modelo físico y numérico fueron comparados para diferentes reologías y anchos de fractura, concluyendo que el modelo matemático sí representa el fenómeno de pérdidas especialmente para bajas viscosidades. Para altas viscosidades es necesario corregir por rugosidad, aun así, el resultado muestra una tendencia similar, confirmando que reproduce el fenómeno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Fluid loss can occur through fractured formations or in permeable zones, especially when low pressures are present. This event increases non-productive times in drilling operations, which increases costs. This generates the need to understand the interaction between the drilling fluid and the fractures present in the formation. For that purpose, a methodology is proposed that has two approaches, a numerical one based on rheological models and balance of the equation of movement, and a physical one based on the theory of scaling. For the numerical model, the equations that allow calculating the velocity profile as a function of the fluid properties and fracture geometry are proposed. For the physical model real rock samples are taken, the fracture is built with a controlled width and geometry, through which a mud is circulated, whose properties were scaled and determined in the laboratory. The results of the physical and numerical model were compared for different rheologies and fracture widths, concluding that the mathematical model does represent the loss phenomenon, especially for low viscosities. The results of the physical and numerical model were compared for different rheologies and fracture widths, concluding that the mathematical model does represent the loss phenomenon, especially for low viscosities. For high viscosities it is necessary to correct for roughness, but still, the result shows a similar trend, confirming that it reproduces the phenomenon.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Reología]]></kwd>
<kwd lng="es"><![CDATA[Laboratorio]]></kwd>
<kwd lng="es"><![CDATA[Flujo en fracturas]]></kwd>
<kwd lng="es"><![CDATA[Modelo numérico]]></kwd>
<kwd lng="en"><![CDATA[Rheology]]></kwd>
<kwd lng="en"><![CDATA[Laboratory]]></kwd>
<kwd lng="en"><![CDATA[Fracture flow]]></kwd>
<kwd lng="en"><![CDATA[Numerical model]]></kwd>
</kwd-group>
</article-meta>
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