3D SEISMIC ATTRIBUTES INTERPRETATION OF ZUBAIR FORMATION IN AL-AKHAIDEIR AREA, SOUTHWESTERN KARBALA
This research includes interpretation of the seismic attribute of 3D seismic data of Zubair Formation within Al-Akhadeir area southwestern Karbala to identify the structural and stratigraphic patterns and investigate the hydrocarbon accumulation by converting seismic data into the seismic attribute. The seismic attributes instantaneous phase, acoustic impedance and alterative automatic gain control were used. Application of the instantaneous phase reveals the mound configuration in addition to a flat spot which represents the seismic response of hydrocarbon-water contact, while shows lateral variation which reflects lateral facies variation in Zubair Formation. Faults, high stand tracts, low stand tracts were recognized indicating that Zubair facies are a clastic depositional system deposited in delta platform consisting of shallow-water, high energy marine (high stand tract). By acoustic impedance attributes indicate most likely, area of organic compound accumulation. Studying seismic attributes give evidence for the presence of hydrocarbon associated with phenomena such as mound, a flat spot within Zubair Formation.