000			02930nmc a2200361 4500
005			20260608201306.0
008			260224s2001 xxu ing
041			_aInglés
245	0	0	_aAsphaltene flocculation and collapse from petroleum fluids
260			_a[s.l.] _bElsevier _c2001
270			_a21/05/2009 ; 05/08/2003
500			_aTrabajo publicado en la página web de University of Illinois at Chicago, College of Engineering, Thermodynamics Research Laboratory. ; Navegadores de Internet ; Adobe Acrobat (PDF)
520			_aTranscripción 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.
942			_cARCHIVO
100	1		_aBranco, Valter Antonio M. _912157
100	1		_aMansoori, G. Ali _912133
110	2		_aUniversity of Illinois _923541
110	2		_aPetrobras _9547
650		0	_aPetróleos pesados _922736
650		0	_aExtracción de petróleos pesados _910586
650		0	_aComposición de petróleo crudo _950
650		0	_aComposición de los fluidos de reservorios _923642
650		0	_aCompuestos orgánicos pesados _923643
650		0	_aTermodinámica _91120
650		0	_aCinética _94606
650		0	_aControl de parafinas en pozos _95630
650		0	_aControl de asfaltenos en pozos _923650
700	1		_aMansoori, G. Ali _912133
710	2		_aUniversity of Illinois _923541
710	2		_aPetrobras _9547
999			_c150870 _d150870
856			_uhttp://tigger.uic.edu/labs/trl/AsphalteneFloculationModel.pdf