EVALUATION OF SUBSURFACE STRUCTURES FOR HYDROCARBON POTENTIALS WITHIN SOME PART OF THE NORTHERN ANAMBRA BASIN NIGERIA, USING AEROMAGNETIC DATA

Abstract

The aeromagnetic data of some part of the northern Anambra basin has been procured and analyzed to evaluate it subsurface structures in order to assess the hydrocarbon potentiality of the area using the depth weighting techniques of source parameter imaging (SPI), Euler deconvolution and 2D modeling technique which is a better way of mirroring subsurface structures, topography and depth to the top of magnetic body. The results of 3D Euler and SPI ranges from -55.9 to 4197 m and -135.0 to 3926 m respectively. More so, the modelling techniques estimated various hydrocarbon maturation depths within the models at 2.4, 3.2, 4.8, 5.6 and 6 km respectively. The both depth of 3D Euler and SPI correlates well with each other and to some extent with the modeling results. In summary the study area showed possible potentials for hydrocarbon prospecting.