3D structural modelling and spectral decomposition analysis of Jay Field offshore Niger Delta, Nigeria

Abstract In the Niger Delta, Jay Field offshore structural model and seismic attribute analysis were carried out to enhance prospect evaluation mitigate risk in field development operations, especially regions with few wells poor data. Integration of a 3D cube one well composite logs was used carry this analysis. Horizon fault mapping enhanced Seismic analysis, an optimum frequency for spectral decomposition identified using The framework revealed collapsed crest structures rollover anticlines which act as hydrocarbon traping systems on field. Detailed before identify most suitable (spectral) at possible reservoir zones become more pronounced. 25Hz has been analysed give high amplitude accumulated region (indicated around position). This evaluate prospective regions. predicts quality reservoirs. paper reveals that attributes such decomposition, energy, similarity can improve reflection patterns good paper, energy are veritable have improved had allowed anomalous associated accumulation paper.