Abstract
As the challenges associated with hydrocarbon exploration rises with upsurge in energy demand, the need to minimize risk associated with hydrocarbon exploration if supply is to keep up with demand.
 In this work, high resolution aeromagnetic, 3D seismic and well-logs data were adopted and integrated to aid in exploration and characterization of reservoirs in ''XYZ'' field in offshore Niger Delta. Fast Fourier Transform Filter using Oasis Montaj software was applied to the Total Magnetic Intensity grid in horizon and fault interpretation also used to produce subsurface structural maps for sedimentary layer thickness estimation. Direct hydrocarbon indicators (bright spots) on the seismic section was shown using seismic signal. Petrel software and wireline log signatures were used to identify hydrocarbon-bearing sands and determine petrophysical parameters such as porosity, hydrocarbon saturation and net thickness.
 The structural maps generated showed: Three major (synthetic) faults dips south and one minor (antithetic) fault dips north in the field; three identified prospective sands (A, B, C) were delineated. Possible presence of oil accumulation was indicated by the combined Neutron-Density log response. The range of values of effective porosity, hydrocarbon saturation and net thickness were 18-22%, 34-58% and 19.1-28.1 m, respectively. 
 This study established that integration of magnetic, 3D seismic and well-log data are desirable innovative techniques to better understand and analyze subsurface for hydrocarbon potential and exploration.
Highlights
Hydrocarbon resources have always been important and essential natural resources to the general economic development of different countries in the world
The materials used for this study includes; Total magnetic intensity (TMI) anomaly map sheet numbered 329 (Fig. 2a) was acquired from the Nigerian Geological Survey Agency (NGSA), Oasis Montaj software package. 3D stacked depth migrated seismic sections comprising of 400 in-lines and 220 crosslines with a coverage area of about 52.96 km2, base map of the study area (Fig. 2b), check shot survey curve and six spatially distributed well data, which comprises of composite logs suites including gamma ray, resistivity, sonic, neutron, and density logs, Schlumberger’s Petrel software
Aeromagnetic data, seismic data and well logs data are effectively integrated as a viable and an innovative technique in hydrocarbon interpretation analysis which provides a better concept of understanding the subsurface for hydrocarbon potential and in accurate delineation of reservoir blocks in the study area
Summary
Hydrocarbon resources have always been important and essential natural resources to the general economic development of different countries in the world. Owning to the fact that, there is high cost incurred in the exploration of these vital resources, it is very important to achieve maximum perfection in its detection and analysis for its quantification. According to [1], since cost effectiveness is one of the major challenging factors in the oil and gas industry, hydrocarbon exploration, reservoir interpretation and analysis should be thoroughly subjected to the best available technology to achieve the lowest level of uncertainty in its exploration and production. The integration and interpretation of magnetic, seismic and well logs data provides a better concept for exploration and exploitation of hydrocarbon potential. Magnetic information complements seismic and well logs data in the interpretation of basin basement structures and understanding of geological features
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