LITHO-SEISMIC CLASSIFICATION BASED ON ELASTIC ROCK PARAMETERS AT “KELUARGA” FIELD, KUTAI BASIN, EAST KALIMANTAN USING PROBABILITY DENSITY FUNCTION APPROACH
Santika Satya Widita, Sudarmaji, Mochamad Nukman, D.B. Prabowo, Hilfan Khairy · 2019
Summary Seismic reservoir characterization with litho-seismic classification method was aimed to map the sandstone probability. Simultaneous seismic inversion was performed using the PSTM (Pre-stack Time Migration) data from “Keluarga” field which is located at offshore Mahakam PSC. This study is able to analyze the probability of facies in the study area based on lithology classification from elastic rock parameters that gained from seismic inversion IP (P-Impedance), PR (Poisson Ratio) and its derivative of LambdaRho (LR) and MuRho (MR). Cross-plot between elastic rock parameters showed the lithology classification that fitted with its real model. The Probability Density Function (PDF) was used as the statistical approach to determine the lithologies probability and result in the lithology probability cubes. These outcomes are able to use for future field development.