The paper explores the technique of three-dimensional modelling and volumetric analysis of reservoir sands in the DINO Field onshore Niger Delta, Nigeria to enhance reservoir production capability of a hydrocarbon field. Despite advances in the application of Seismic Data Interpretation, results from that alone fails to provide detailed and trusted volumetric assessment hence a method that integrates seismic data modeling is introduced to enhance reliance on the results. An interpretation and modeling approach that integrated seismic data and well data from four wells was employed. Results of the well-to-seismic tie revealed that there is good correspondence between the seismic and the well data in matching the reservoir geometry. From the wireline log signatures, some sand horizons were identified, among which the X-reservoir sand which was the hydrocarbon bearing sands. The gross thickness of the X-reservoir ranges from 71 m to 106 m. The X-reservoir model shows a major growth fault trending East-West and an antithetic fault trending Northwest-Southeast. The positions of the four wells are on the structural highs within the model. Compartments were delineated with additional well positions identified on the model to enhance hydrocarbon recovery. The oil water contact was at the depth of 3825 m on the footwall and 3835 m on the hanging wall due to the downward displacement caused by growth fault trending in East-West direction. Estimate of the volume of hydrocarbon in place revealed that X-reservoir has approximately 2 million Stock Tank Barrel of Oil.
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