Subsurface structural and stratigraphical evaluation of Sapele Shallow field, Niger Delta, Southern Nigeria

Abstract

This research presents the results of the subsurface structural and stratigraphical evaluation of the Sapele Shallow field of the Niger Delta. 3D seismic cube and well log data were used in carrying out this research work. Analysis of the three horizons' structural maps showed the subsurface's structural geometry and the presence of a possible trapping mechanism, which controls the accumulation of hydrocarbons in the studied area. Interpretations of faults that described the structural setting of the field showed three major faults trends from East to West whiles dipping southward with other minor faults. The stratigraphy of the study area thickens from north to south (basinward). Also, the rootmean-square (RMS) amplitude maps analysis of the various horizons reveals that all horizons mapped in the studied area have bright spots (Sweet Spot) except horizon 7.