Permeability of hydrocarbon reservoirs plays a significant part in all stages of oil and gas recovery including well completion, production, and reservoir management. A wide number of statistical methods have already been implemented to estimate reservoir permeability based on the available well logs and core data. Nevertheless, determining representative and accurate permeability values still remains an active challenge. This paper introduces the application of two statistical methods known as “artificial neural network” (ANN) and “least square support vector machine” (LSSVM) to estimate permeability in an Iranian oil field. Prior to building the models, a pre-processing was performed and from all the available well logs, three with better correlations were selected for regression. Gamma ray, sonic, and thermal neutron porosity logs together with core porosity were employed to estimate permeability. Obtained results indicate that predictions by both models accord ideally with core data. LSSVM was also proven to outperform the ANN model yielding an overall correlation coefficient of 0.9848.


Article metrics loading...

Loading full text...

Full text loading...


  1. Kappler, K. H. A., Kuzma, J. W., Rector
    , 2005, A comparison of standard inversion, neural networks and support vector machines: 75th Annual International Meeting, SEG, Expanded Abstracts, 1725–1728.
    [Google Scholar]
  2. Lim, J.-S.
    , 2005: Reservoir properties determination using fuzzy logic and neural networks from well log data in offshore Korea, Journal Petroleum Science and Engineering49, 182–192.
    [Google Scholar]
  3. Safari, H., Shokrollahi, A., Jamialahmadi, M., Ghazanfari, H., Bahadori, S., Zendehboodi, S.
    , 2014. Prediction of the aqueous solubility of BaSO4using pitzer ion interaction model and LSSVM algorithm. Fluid Phase Equilibria Journal, 374, 48–62
    [Google Scholar]
  4. Xavier-de-SouzaS., SuykensJ.A.K., VandewalleJ., BolleD.
    , 2010. Coupled Simulated Annealing, IEEE Trans. Syst. Man Cybern. B: Cybern. 40, 320–335.
    [Google Scholar]

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error