<?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>0188-6266</journal-id>
<journal-title><![CDATA[Acta universitaria]]></journal-title>
<abbrev-journal-title><![CDATA[Acta univ]]></abbrev-journal-title>
<issn>0188-6266</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Guanajuato, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-62662022000100132</article-id>
<article-id pub-id-type="doi">10.15174/au.2022.3407</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Software académico de control de pozos petroleros MAROGA]]></article-title>
<article-title xml:lang="en"><![CDATA[Academic oil well control software MAROGA]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez Moreno]]></surname>
<given-names><![CDATA[Marcos Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández Barajas]]></surname>
<given-names><![CDATA[José Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez Hernández]]></surname>
<given-names><![CDATA[José del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Plazas Quiroga]]></surname>
<given-names><![CDATA[Juan Gabriel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Tecnológica de Tabasco  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Tecnológica de la Mixteca Instituto de Física y Matemáticas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto Técnico del Petróleo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>32</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-62662022000100132&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-62662022000100132&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-62662022000100132&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El intento fallido en el control de un brote o el descontrol de un pozo petrolero trae consigo pérdidas económicas muy graves, por ejemplo, la pérdida total del mismo. Sin embargo, la posibilidad de analizar, seleccionar y aplicar las acciones y actividades correctas brinda la oportunidad de controlar su manifestación, cuyo resultado es la reducción y eliminación de la gravedad del descontrol. En el presente artículo se describe el desarrollo de una herramienta didáctica computacional, gráfica y numérica, diseñada para el adiestramiento y capacitación de las metodologías en el control de pozos petroleros de Petróleos Mexicanos-Asociación Internacional de Contratistas de Perforación (Pemex-IADC). Dicha aplicación se desarrolló con Macros de Visual Basic en el entorno de Microsoft y ha sido validada mediante una investigación exhaustiva para el diseño de su configuración y probada mediante la ejecución de ejercicios numéricos y la comparación con ejemplos de los manuales de WellCap de Pemex y de diversas compañías afiliadas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The unsuccessful attempt to control an offshoot or inadequate management of oil well control situations may bring serious economic costs, such as the total loss of the well. However, the possibility of analyzing, selecting, and applying the correct actions and activities provides the opportunity to control its manifestation, resulting in the reduction or elimination of the severity of the blowout. This article describes the development of a graphical and numerical computational tool, designed to study and understand the methodologies in the control of oil wells of Petróleos Mexicanos-International Association of Drilling Contractors (Pemex-IADC). This application was developed with Visual Basic Macros in the Microsoft environment. It has been validated through an exhaustive investigation for the design of its configuration and has been tested employing the execution of numerical exercises and comparing it with examples of the WellCap manuals of Pemex and diverse affiliated companies.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Control de pozos]]></kwd>
<kwd lng="es"><![CDATA[WellCap]]></kwd>
<kwd lng="es"><![CDATA[WellSharp]]></kwd>
<kwd lng="es"><![CDATA[bomba Koomey]]></kwd>
<kwd lng="es"><![CDATA[cédula de control]]></kwd>
<kwd lng="en"><![CDATA[Well control]]></kwd>
<kwd lng="en"><![CDATA[WellCap]]></kwd>
<kwd lng="en"><![CDATA[WellSharp]]></kwd>
<kwd lng="en"><![CDATA[Koomey pump]]></kwd>
<kwd lng="en"><![CDATA[control card]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Adams]]></surname>
<given-names><![CDATA[R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Eslinger]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Owens]]></surname>
<given-names><![CDATA[K. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Rich]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Software acquisition best practices: 2004 edition]]></source>
<year>2004</year>
<conf-name><![CDATA[ Third Annual Conference on the Acquisition of Software-Intensive Systems]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aragall]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Oppelt]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Koppe]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Extending the scope of real-time drilling &amp; well control simulators]]></source>
<year>2017</year>
<conf-name><![CDATA[ Offshore Mediterranean Conference and Exhibition]]></conf-name>
<conf-loc>Ravenna, Italia </conf-loc>
</nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bjorkevoll]]></surname>
<given-names><![CDATA[K. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Skogestad]]></surname>
<given-names><![CDATA[J. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Froyen]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Linga]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Well control simulator: Enhancing models with compositional PVT models and kinetics]]></source>
<year>2018</year>
<conf-name><![CDATA[ IADC/SPE Drilling Conference and Exhibition]]></conf-name>
<conf-loc>Fort Worth, Texas </conf-loc>
</nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brett]]></surname>
<given-names><![CDATA[J. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Summers]]></surname>
<given-names><![CDATA[M. A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Planning and practical problem solving using an engineering simulator for drilling]]></source>
<year>1984</year>
<conf-name><![CDATA[ SPE Annual Technical Conference and Exhibition]]></conf-name>
<conf-loc>Houston, Texas </conf-loc>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Campo]]></surname>
<given-names><![CDATA[A. J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Well engineering Module, basic well control]]></source>
<year>2010</year>
<publisher-name><![CDATA[IPM-Schlumberger]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chadwell]]></surname>
<given-names><![CDATA[L. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Blundon]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Incidents associated with oil and gas operations. Outer Continental Shelf]]></source>
<year>1997</year>
</nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chadwell]]></surname>
<given-names><![CDATA[L. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Blundon]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Anderson]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Cacho]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Incidents associated with oil and gas operations. Outer Continental Shelf]]></source>
<year>1998</year>
</nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Christou]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Konstantinidou]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Safety of offshore oil and gas operations: Lessons from past accident analysis]]></source>
<year>2012</year>
</nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Durán-Carmona]]></surname>
<given-names><![CDATA[G. V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Metodología aplicada en un conflicto ambiental entre PEMEX y las comunidades chontales]]></source>
<year>2018</year>
<conf-name><![CDATA[ VIEncuentro Latinoamericano de Metodología de las Ciencias Sociales (ELMECS)]]></conf-name>
<conf-loc>Ecuador </conf-loc>
</nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A methodology based on effective practices to develop educational software]]></article-title>
<source><![CDATA[Computación y Sistemas]]></source>
<year>2008</year>
<volume>11</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>313-32</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[González-Díaz]]></surname>
<given-names><![CDATA[P. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Diseño de software de simulación de control de pozos petroleros didáctico]]></source>
<year>2018</year>
<publisher-name><![CDATA[CIATEQ, A.C.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kiran]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Salehi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Teodoriu]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Human factors and non-technical skills: Towards an immersive simulation-based training framework for offshore drilling operations]]></source>
<year>2019</year>
<conf-name><![CDATA[ SPE Annual Technical Conference and Exhibition]]></conf-name>
<conf-loc>Calgary, Alberta, Canada </conf-loc>
</nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kropla]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[IADC's well control accreditation program (Well Cap)]]></source>
<year>1995</year>
<conf-name><![CDATA[ SPE/IADC 29341 Drilling Conference]]></conf-name>
<conf-loc>Amsterdam, Holanda </conf-loc>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kropla]]></surname>
<given-names><![CDATA[S. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kelly]]></surname>
<given-names><![CDATA[O. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Gillis]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Sonnemann]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Metcalf]]></surname>
<given-names><![CDATA[J. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Alcantara]]></surname>
<given-names><![CDATA[O. L. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Rodrígues]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Creating a well-control culture with WellCap]]></source>
<year>2008</year>
<conf-name><![CDATA[ IADC/SPE Drilling Conference]]></conf-name>
<conf-loc>Orlando, Florida, USA </conf-loc>
</nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Letbetter]]></surname>
<given-names><![CDATA[S. C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Kick detection and well control training]]></source>
<year>1975</year>
<conf-name><![CDATA[ SPE California Regional Meeting]]></conf-name>
<conf-loc>Ventura, California </conf-loc>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Linga]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Bjørkevoll]]></surname>
<given-names><![CDATA[K. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Skogestad]]></surname>
<given-names><![CDATA[J. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Saasen]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Gas influx into drilling fluids during flow check operations as affected by gas absorption characteristics of the drilling fluid]]></source>
<year>2017</year>
<conf-name><![CDATA[ SPE/IADC Drilling Conference and Exhibition]]></conf-name>
<conf-loc>Hague, Holanda </conf-loc>
</nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[The future of computing in the petroleum industry]]></source>
<year>1996</year>
<conf-name><![CDATA[ Petroleum Computer Conference]]></conf-name>
<conf-loc>Dallas, Texas </conf-loc>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Marques]]></surname>
<given-names><![CDATA[D. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[O. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Lomba]]></surname>
<given-names><![CDATA[R. F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Thermodynamic behavior of olefin and methane mixtures applied to synthetic drilling fluids well control]]></source>
<year>2017</year>
<conf-name><![CDATA[ SPE Latin American and Caribbean Petroleum Engineering Conference]]></conf-name>
<conf-loc>Buenos Aires, Argentina </conf-loc>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mendoza-Hernández]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Diseño de software de apoyo durante el control de un pozo]]></source>
<year>2016</year>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mosquera]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Experiencias de petróleos mexicanos en la recuperación de hidrocarburos en el medio marino]]></article-title>
<source><![CDATA[Revista Energética]]></source>
<year>1995</year>
<volume>19</volume>
<numero>3</numero>
<issue>3</issue>
</nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ortíz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Incendio del pozo petrolero dos bocas de San Diego de la mar, en 1908]]></article-title>
<source><![CDATA[Revista Iberoamericana de Ciencias]]></source>
<year>2017</year>
<volume>4</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>60-72</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Osornio]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Vallejo]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Ayala]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Successful well control in the Cantarell field applying the dynamic method]]></source>
<year>2001</year>
<conf-name><![CDATA[ SPE Annual Technical Conference]]></conf-name>
<conf-loc>New Orleans, Louisiana </conf-loc>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="">
<collab>Petróleos Mexicanos</collab>
<source><![CDATA[Procedimientos y normas para control de brotes]]></source>
<year>2002</year>
</nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[O. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[P. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[An overview of deepwater well integrity developments after the blowout of Macondo]]></source>
<year>2017</year>
<conf-name><![CDATA[ SPE Latin America and Caribbean Petroleum Engineering Conference]]></conf-name>
<conf-loc>Buenos Aires, Argentina </conf-loc>
</nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="">
<collab>Secretaría de Energía</collab>
<source><![CDATA[Prospectiva de talento del sector energía. Volumen 3: Brechas de talento en el subsector hidrocarburos]]></source>
<year>2015</year>
</nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ainsworth]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Industry&#8217;s well control training courses must focus on preparing its employees for work, not for tests]]></source>
<year>2015</year>
<publisher-name><![CDATA[Drilling contractor]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[E. R.]]></given-names>
</name>
<name>
<surname><![CDATA[Ramos]]></surname>
<given-names><![CDATA[H. R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Manual de perforación de pozos petroleros]]></source>
<year>2017</year>
<publisher-name><![CDATA[Editorial Trillas]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ulloa-Lugo]]></surname>
<given-names><![CDATA[O. L.]]></given-names>
</name>
<name>
<surname><![CDATA[De-Leon]]></surname>
<given-names><![CDATA[I. O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ixtoc No.1, blowout and control operation]]></source>
<year>1981</year>
<conf-name><![CDATA[ SPE Deep Drilling and Production Symposium]]></conf-name>
<conf-loc>Amarillo, Texas </conf-loc>
</nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Walker]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Implementing best practices in the join battlespace infosphere (JBI) program at AFRL]]></source>
<year>2003</year>
<conf-name><![CDATA[ Conference on the Acquisition of Software-Intensive System]]></conf-name>
<conf-loc> </conf-loc>
</nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zamora]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Operation and development of a well-control calculator module]]></source>
<year>1981</year>
<conf-name><![CDATA[ SPE Offshore Europe]]></conf-name>
<conf-loc>Aberden, United Kingdom </conf-loc>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
