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Introduction Rock physics is considered as essential link between reservoir & seismic properties that allows improved reservoir characterization. While petro-physical evaluation provides information about 1D lithology, porosity and saturation information, rock physics add value in their interpretation in terms of geological control over reservoir development and fluid mixing model such as uniform or patchy saturation. Rock physics models developed based on integration of well and core data facilitates reliable prediction of reservoir properties beyond the well control from elastic properties estimated from seismic data. In the paper, authors demonstrate the value gained through establishment of rock physics model from well and core data and its potential application for improved prediction of reservoir properties in Malay basin. The study area is a part of Malay basin located 170 Km offshore Terengganu at about 76 M water depths. The field is an E-W elongated four way structural closure. The reservoirs are 3–10 M average net thickness comprised of middle to upper Miocene fine-grained sand and silts inter-bedded with clay & coals deposited in a coastal plain setting. Rock Physics Diagnostics Rock Physics diagnostics (RPD) has emerged as a tool to establish the relationship between seismic velocity and porosity consistent with geological control over reservoir development to support the development of Rock Physics Model. In the study, the solid phase components and their proportions have been established from Sand-Slilt-Clay (SSC) model. Figure 1 shows the reservoir lithology and fluid characteristics as established from Petro-physical evaluation of a representative well within the study area. |
