TY - JOUR A1 - Babasafari, A.A. A1 - Rezaei, S. A1 - Salim, A.M.A. A1 - Kazemeini, S.H. A1 - Ghosh, D.P. JF - Journal of Petroleum Exploration and Production Technology UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85092721290&doi=10.1007%2fs13202-020-01013-0&partnerID=40&md5=dcd51dc8f19c8c1ace8dd9931169b658 Y1 - 2020/// PB - Springer Science and Business Media Deutschland GmbH SN - 21900558 N1 - cited By 3 N2 - For estimation of petrophysical properties in industry, we are looking for a methodology which results in more accurate outcome and also can be validated by means of some quality control steps. To achieve that, an application of petrophysical seismic inversion for reservoir properties estimation is proposed. The main objective of this approach is to reduce uncertainty in reservoir characterization by incorporating well log and seismic data in an optimal manner. We use nonlinear optimization algorithms in the inversion workflow to estimate reservoir properties away from the wells. The method is applied at well location by fitting nonlinear experimental relations on the petroelastic cross-plot, e.g., porosity versus acoustic impedance for each lithofacies class separately. Once a significant match between the measured and the predicted reservoir property is attained in the inversion workflow, the petrophysical seismic inversion based on lithofacies classification is applied to the inverted elastic property, i.e., acoustic impedance or Vp/Vs ratio derived from seismic elastic inversion to predict the reservoir properties between the wells. Comparison with the neural network method demonstrated this application of petrophysical seismic inversion to be competitive and reliable. © 2020, The Author(s). TI - Petrophysical seismic inversion based on lithofacies classification to enhance reservoir properties estimation: a machine learning approach ID - scholars13725 KW - Acoustic impedance; Machine learning; Nonlinear programming; Petrophysics; Turing machines; Well logging KW - Elastic properties; Lithofacies classifications; Machine learning approaches; Neural network method; Non-linear optimization algorithms; Petrophysical properties; Reservoir characterization; Reservoir property KW - Seismology AV - none ER -