Assessment of asphaltene deposition due to titration technique

CATEGORY: ASPHALTENE
Fluid Phase Equilibria, Volume 339, 15 February 2013, Pages 72–80
Assessment of asphaltene deposition due to titration technique
Ali Chamkalani (a), (b), Mahmood Amani (c), Mohammad Amin Kiani (d), Reza Chamkalani (e)
a Department of Petroleum Engineering, Petroleum University of Technology, P.O. Box 63431, Ahwaz, Iran
b Pars Oil and Gas Company (POGC), Kangan, Bushehr, Iran
c Petroleum Engineering Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
d Energy Engineering Department, Sharif University of Technology, P.O. Box 11155-11136, Tehran, Iran
e Energy Engineering Department, Power & Water University of Technology, P.O. Box 16765-1719, Tehran, Iran
Abstract
Describes a novel scaling equation as a function of temperature, molecular weight, and dilution ratio (solvent) which is designed to determine the weight percent of precipitated asphaltene in the presence of various precipitants or solvents.
The technique utilizes least square support vector machines/regression (LSSVM/LSSVR) to perform nonlinear modeling. Authors describe an innovative feature selection mechanism based on coupled simulated annealing (CSA) optimization in an attempt to tune the optimal parameters. CSA-LSSVM is capable of characterizing the nonlinear behavior.
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