A-19 A NEW APPROACH IN PROCESSING CORE AND LOG DATA FOR ASSISTING SEISMIC- BASED MAPPING OF POROSITY AND WATER SATURATION BAMBANG WIDARSONO and FAKHRIYADI SAPTONO Oil and Gas “Lemigas” Research and Development Center Jl. Cileduk Raya Cipulir Jakarta 12230 Indonesia ABSTRACT 1 This paper presents a new approach in preparing model relationship between seismic output (e.g. acoustic impedance and Poisson ratio) and rock physical properties (i.e. porosity and water saturation). The approach is basically an effort to model results of well-log analysis following the principal objective of deducting porosity and water saturation from acoustic data. However the usual absence of


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