Journal
FUEL
Volume 102, Issue -, Pages 716-723Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2012.05.050
Keywords
Asphaltene; Particle swarm optimization; Neural network; Natural depletion
Categories
Funding
- Petroleum University of Technology (PUT)
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Asphaltene precipitation affects enhanced oil recovery processes through the mechanism of wettability alteration and blockage. Asphaltene precipitation is very sensitive to the reservoir conditions and fluid properties, such as pressure, temperature and injected fluid molecular weight. In this work, the model based on a feed-forward artificial neural network (ANN) optimized by particle swarm optimization (PSO) as an artificial intelligence modeling tool to predict asphaltene precipitation due natural depletion. Particle swarm optimization (PSO) is used to decide the initial weights of the neural network. The PSO-ANN model is applied to the experimental data from one of northern Persian Gulf oil field has been used to develop this model. The predicted results from the PSO-ANN model and BP-ANN were compared to the experimental precipitation data. The average relative absolute deviation between the model predictions and the experimental data was found to be less than 4%. A comparison between the prediction of this model and the alternatives showed that the PSO-ANN model predicts asphaltene precipitation more accurately. (C) 2012 Elsevier Ltd. All rights reserved.
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