SUBSURFACE MAP GENERATION OF SULU RESERVOIR IN NIGER DELTA BASIN

An integrated approach using seismic information was employed for subsurface mapping of SULU reservoir of the Niger Delta basin. The aim of this study was directed towards the generation of a subsurface map, determination of the subsurface structural features for hydrocarbon and prediction of prospecting of the reservoir. The methods employed include analysis of 3D seismic data using Petrel software: faults and horizon deductions from the seismic section were used to generate structural maps which revealed different structural styles present in the studied area and extraction of amplitude. A distinct horizon was mapped. From the horizon nine faults (with five been major) were mapped for the purpose of carrying 3D subsurface structural interpretation. These were used in generating the time structure maps using the Petrel Interpretational tool. The results show that the trapping mechanisms in the field are favourable for hydrocarbon accumulation. Two principal structural trapping mechanisms presents are the rollover anticline and the simple anticline. This study has demonstrated and appreciate the importance of seismic structural interpretation in generation of subsurface maps of reservoir, understanding the structural styles present, amplitude extraction for
prospect ranking.