This paper focuses on the application of pre-stack seismic inversion to delineate gas reservoirs for development well targeting of the Muda Field in the Malay Basin. A comprehensive development well targeting workflow was established to integrate information from all related disciplines and convert them into an optimized well design. One of the key tasks in this workflow was to select an appropriate seismic attribute to identify the distribution of reservoir sands in this area. These reservoirs are generally characterized by thin sands inter-bedded with coals. Relative Poisson's Ratio (RPR) was used to identify reservoir targets prior to development drilling. Drilling results later indicated that a high proportion of the proposed anomalies (87%) correspond to gas sands. The remaining (13%) are related to highly saturated sands, Additional Zones of Interest (AZIs) or shale. Preliminary results therefore demonstrate that the RPR attribute can be used as an effective tool in development well targeting.
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