Documents disponibles écrits par cet auteur

Effect of deposition geometry on multiphase flow of wells producing asphaltenic and waxy oil mixtures / Edgar Ramirez-Jaramillo in Industrial & engineering chemistry research, Vol. 49 N° 7 (Avril 2010) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3391–3402 Titre : Effect of deposition geometry on multiphase flow of wells producing asphaltenic and waxy oil mixtures Type de document : texte imprimé Auteurs : Edgar Ramirez-Jaramillo, Auteur ; Jose M. del Rio, Auteur ; Octavio Manero, Auteur Année de publication : 2010 Article en page(s) : pp. 3391–3402 Note générale : Industrial Chemistry Langues : Anglais (eng) Mots-clés : Deposition  Geometry  Flow  Wells  Producing  Asphaltenic  Waxy  Oil  Mixtures Résumé : Heavy organic deposition (asphaltenes, waxes, hydrates, etc.) on the wall of oil pipelines is often regarded as a serious problem due to technical and economic implications. Because the asphaltene deposition causes an effective reduction of the cross section of the pipes, it is important to study the effect of this reduction on the most important hydrodynamic parameters of a well, such as pressure drops, flow regimes, and inflow performance behavior, just to mention a few. To address the role of reductions to the flow of hydrocarbons in vertical pipe systems, we present a compositional flow model that accounts for reductions to the flow of a produced hydrocarbon mixture. In this work, we study producing wells (“A” and “B”) located in southeast of Mexico. In the case of well A, we show the results of an asphaltene deposition simulation and the total pressure drop as a function of time along the pipeline, while for well B, we show the results obtained for the total pressure drop as a function of the different artificial reductions along the well. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901134j [article] Effect of deposition geometry on multiphase flow of wells producing asphaltenic and waxy oil mixtures [texte imprimé] / Edgar Ramirez-Jaramillo, Auteur ; Jose M. del Rio, Auteur ; Octavio Manero, Auteur . - 2010 . - pp. 3391–3402. Industrial Chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 49 N° 7 (Avril 2010) . - pp. 3391–3402 Mots-clés : Deposition  Geometry  Flow  Wells  Producing  Asphaltenic  Waxy  Oil  Mixtures Résumé : Heavy organic deposition (asphaltenes, waxes, hydrates, etc.) on the wall of oil pipelines is often regarded as a serious problem due to technical and economic implications. Because the asphaltene deposition causes an effective reduction of the cross section of the pipes, it is important to study the effect of this reduction on the most important hydrodynamic parameters of a well, such as pressure drops, flow regimes, and inflow performance behavior, just to mention a few. To address the role of reductions to the flow of hydrocarbons in vertical pipe systems, we present a compositional flow model that accounts for reductions to the flow of a produced hydrocarbon mixture. In this work, we study producing wells (“A” and “B”) located in southeast of Mexico. In the case of well A, we show the results of an asphaltene deposition simulation and the total pressure drop as a function of time along the pipeline, while for well B, we show the results obtained for the total pressure drop as a function of the different artificial reductions along the well. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie901134j

Thermodynamic characterization of undefined petroleum fractions using group contribution methods / Bernardo Carreon-Calderon in Industrial & engineering chemistry research, Vol. 51 N° 43 (Octobre 2012) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 51 N° 43 (Octobre 2012) . - pp. 14188–14198 Titre : Thermodynamic characterization of undefined petroleum fractions using group contribution methods Type de document : texte imprimé Auteurs : Bernardo Carreon-Calderon, Auteur ; Veronica Uribe-Vargas, Auteur ; Edgar Ramirez-Jaramillo, Auteur Année de publication : 2013 Article en page(s) : pp. 14188–14198 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Thermodynamic Résumé : Properties of petroleum fractions of unknown composition, the so-called undefined petroleum fractions, are estimated using an approach based on group contribution methods. Using liquid density and molecular weight as experimental data and classical thermodynamics as framework, functional groups were assigned to each undefined fraction by minimizing its free energy. Thus, methods requiring molecular structures were used directly in phase equilibrium simulations of petroleum fluids. The proposed procedure also allows the critical properties of such undefined fractions to be calculated employing no specific correlations. The obtained results show reasonable accuracy concerning phase equilibrium experiments. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3016076 [article] Thermodynamic characterization of undefined petroleum fractions using group contribution methods [texte imprimé] / Bernardo Carreon-Calderon, Auteur ; Veronica Uribe-Vargas, Auteur ; Edgar Ramirez-Jaramillo, Auteur . - 2013 . - pp. 14188–14198. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 43 (Octobre 2012) . - pp. 14188–14198 Mots-clés : Thermodynamic Résumé : Properties of petroleum fractions of unknown composition, the so-called undefined petroleum fractions, are estimated using an approach based on group contribution methods. Using liquid density and molecular weight as experimental data and classical thermodynamics as framework, functional groups were assigned to each undefined fraction by minimizing its free energy. Thus, methods requiring molecular structures were used directly in phase equilibrium simulations of petroleum fluids. The proposed procedure also allows the critical properties of such undefined fractions to be calculated employing no specific correlations. The obtained results show reasonable accuracy concerning phase equilibrium experiments. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie3016076