Petrophysical parameters estimation using Levenberg-Marquardt and Singular Value Decomposition inversion schemes

Well logging inversion was carried out using Levenberg-Marquardt (LM) and Singular Value Decomposition (SVD) techniques for the determination of petrophysical parameters, respectively. In this research, synthetic data contaminated with 5% Gaussian noise, field were used to compare results from two methods. MATLAB software has been developed solve overdetermined inverse problem. The estimated parameters both methods had compared one another in terms robustness rock interface differentiation, different fluid prediction, accuracy parameters. This research returns reason inner iterative loop which is considered more about Jacobian matrix sensitivity. showed that can be estimation a reliable well-log interpretation.