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metadata.dc.type: masterThesis
Título : 1D core flood modelling of impact of brine composition and distribution of exchanger sites on optimisation of low salinity waterflooding
Autor : Vásconez Noguera, Néstor Danilo
metadata.dc.contributor.advisor: Mackay, Eric
Palabras clave : GEOQUÍMICA;SIMULACIÓN NUMÉRICA;RECUPERACIÓN MEJORADA DE PETRÓLEO;INYECCIÓN DE AGUA;INTERCAMBIO IÓNICO
Fecha de publicación : ago-2014
Editorial : Edimburgo / Heriot-Watt University / 2014
Citación : Vásconez Noguera, Néstor Danilo (2014). 1D core flood modelling of impact of brine composition and distribution of exchanger sites on optimisation of low salinity waterflooding. (Trabajo de Titulación de Máster en Evaluación y Gestión de Embalses). Heriot-Watt University. Edimburgo. 65 p.
Resumen : El presente estudio analiza el efecto del intercambio iónico en la recuperación de crudo mediante inyección de agua de baja salinidad. Inicialmente se realizó un proceso de reproducción de datos experimentales a escala de núcleo para posteriormente probar el proceso en un sistema bifásico observando el efecto de distintos interpoladores en la recuperación final de crudo.
Descripción : The present report contains a literature review of the key and latest publications on Low Salinity Waterflooding (LSWF) since its real development in the 1990`s to explain the dominant mechanisms, modelling processes and requirements to apply this Enhanced Oil Recovery (EOR) technique. Up-to-date, there is no general agreement of the dominating mechanism that rules the LSWF effectiveness. Currently, wettability alteration to a more water-wet state of the rock as a result of ion exchange and/or double layer expansion mechanism are the two most feasible and supported pore scale mechanisms. However, most of the last published modeling methods are trying to represent the wettability changes only as a result of Multi-Ion Exchange (MIE) processes and geochemical reactions. These methods cross-check their results with observed laboratory data and with the chemical reactions obtained from a recognized geochemical simulator, PHREEQ-C (Kharaka et al., 1988). The present project is oriented to reproduce the experimental results obtained in the IPE laboratory at Heriot Watt University with standard industry reservoir simulation software and validate the outcomes with PHREEQ-C to later define correlations between grid size, cation exchange capacity (CEC), selectivity coefficients, injection rates, and oil recovery in a MIE modelling process in a single phase and two phase system.
URI : http://repositorio.educacionsuperior.gob.ec/handle/28000/2977
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