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|Type:||Artigo de evento|
|Title:||Numerical Study On The Two-phase Steam-water Flow During The Steam Injection In Petroleum Wells|
|Author:||de Moura Luiz Felipe M.|
Moura Luiz Sergio S.
|Abstract:||The main objective of this work is the numerical calculation of heat transfer and pressure changes during steam injection in petroleum wells. The geometries concerned are the aerial and grounded horizontal pipelines and the vertical steam injection column. The steam injection is one of the most efficient methods of enhanced oil recovery. This method is based on the crude oil viscosity reduction by heating. The amount of energy supplied to the reservoir must to be evaluated as a function of heat losses and pressure changes in the pipelines and in the well. The mathematical model is formulated considering one-dimensional steady-state fluid flow. The mass, momentum and energy equations are solved simultaneously by the Newton-Raphson method. The void fraction, friction coefficient and global heat transfer coefficient are obtained from experimental correlations as a function of the flow patterns. The conservation equations are applied to discrete portions of the pipeline and the column from the inlet, where the flow conditions are specified, to the outlet. The numerical results for the temperature profile in the steam injection column are compared to some available experimental results with a satisfactory agreement. The influence of different parameters such as flow rate, pressure pipe diameter, insulation thickness and others are investigated. The obtained numerical results are helpful to the analysis, design and optimization of the steam injection process.|
|Editor:||Publ by ASME, New York, NY, United States|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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