The Relationship of Rock Properties and Elastic Properties by Using Integrated Seismic Quantitative Interpretation Methods to Characterize Carbonate Facies Banggai Basin

Abstract

The exploration activity in Eastern of Indonesia are mostly concern on carbonates play. The unique characteristics of carbonate and its complexity needs to be evaluated by using integrated methods. The location of research area are in Banggai Basin within the Senoro – Toili Block on the eastern arm of Sulawesi. Several rocks are presence at Miocene carbonate section that potentially pointed as reservoir, ranging from bioclastic carbonates platform facies of Tomori and Minahaki Formations to reefal carbonates buildup of Mantawa member. Our approach is to introduce fundamental rock physics relations, which help to quantify the geophysical signatures of rock and fluid properties. Since rock properties are a consequence of geologic processes, we begin to quantify the seismic signatures of various geologic trends. Objective of this research is to integrating both the data and expertise of geophysics and geology for carbonate reservoir characterization.
There are so many parameter and uncertainty to evaluate the carbonates reservoir. Therefore, the integration of rock properties and elastic properties will be comprehensive ways to evaluate the carbonates reservoir. Hence, seismic quantitative interpretation will be used as the main methods, including post-stack amplitude analysis, offset-dependent amplitude analysis (AVO analysis),  coustic and elastic impedance inversion beside carbonates diagenesis analysis, lab analysis (petrography), and petrophysical  nalysis.
The final product of the research will be the matched sensitive parameter that shows relationship on rock properties and elastic properties, including P-wave and S-wave impedances and also AVO analysis and classification to characterize the carbonate  reservoir by its facies in Banggai Basin.
The research highlight quantitative seismic interpretation method to reduce uncertainty in reservoir characterization especially in carbonate reservoir.