Identification of seismic attributes for hydrocarbon prospecting of Akos field, Niger Delta, Nigeria

摘要

In this study, we have extracted and analyzed four seismic attributes of Akos oil field to obtain more information aboutthe structures, stratigraphy and hydrocarbon potential of the Akos field from available seismic and a suite of well logsdata. Two lithology and reservoirs were delineated from the well logs. Two horizons and growth faults were identifiedin the seismic sections. For a comprehensive analysis of the structural and stratigraphic understanding of the reservoirs,four seismic attributes variance edge, sweetness, root mean square and relative acoustic impedance were applied tothe seismic data. The Variance edge analysis was used to delineate the prominent and subtle faults in the area. The highsweetness regions in the seismic data indicate high amplitude which indicates the presence of hydrocarbon-bearingsand units. The root mean square amplitude analysis also indicates the presence of hydrocarbon in seismic data. Therelative acoustic impedance analysis was used for delineating lithology variation in the seismic sections. The result ofthe seismic attribute analysis has shown that the Akos field has good hydrocarbon prospects.