02930nmc a2200361 4500 20260608201306.0 260224s2001 xxu ing Inglés Asphaltene flocculation and collapse from petroleum fluids [s.l.] Elsevier 2001 21/05/2009 ; 05/08/2003 Trabajo publicado en la página web de University of Illinois at Chicago, College of Engineering, Thermodynamics Research Laboratory. ; Navegadores de Internet ; Adobe Acrobat (PDF) Transcripción del resumen publicado por el autor: Deposition of complex and heavy organic compounds, which exist in petroleum crude and heavy oil, can cause a number of severe problems. To prevent deposition inside the reservoir, in the well head and inside the transmission lines, it is necessary to be able to predict the onset and amount of deposition due to various factors. In the present paper, the mechanism of asphaltene deposition, which is the major cause of most organic deposition cases, is modeled based on statistical mechanics of polydisperse polymer solutions joined with the kinetic theory of aggregation and its predictive capability is discussed. Utilization of statistical mechanics of polydisperse polymer solutions joined with kinetic theory of aggregation enables us to develop a realistic model which is able to predict both reversible and irreversible heavy organic depositions. The present model is capable of describing several reversible and irreversible situations, such as the phenomena of organic deposition, growing mechanism of heavy organic aggregates, the size distributions of precipitated organics and the solubility of heavy organics in a crude oil due to variations in oil pressure, temperature and composition. As an example, the present model is applied for heavy organics deposition prediction of two different Brazilian crude oils for which experimental data are available. It is shown that the prediction results of the present model are in good agreement with the experimental data. ARCHIVO Branco, Valter Antonio M. 12157 Mansoori, G. Ali 12133 University of Illinois 23541 Petrobras 547 Petróleos pesados 22736 Extracción de petróleos pesados 10586 Composición de petróleo crudo 50 Composición de los fluidos de reservorios 23642 Compuestos orgánicos pesados 23643 Termodinámica 1120 Cinética 4606 Control de parafinas en pozos 5630 Control de asfaltenos en pozos 23650 Mansoori, G. Ali 12133 University of Illinois 23541 Petrobras 547 150870 150870 http://tigger.uic.edu/labs/trl/AsphalteneFloculationModel.pdf 0 0 0 0 218689 BVIAPG BVIAPG 2026-03-04 200026915 0 200026915 2026-03-04 16:40:02 2026-03-04 INTERNET