Browsing by Author "David, Ester Lineekela Megameno"

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    A seismic stratigraphic analysis and petroleum system characterization of the cretaceous sequence in central Walvis basin, offshore Namibia
    (University of Namibia, 2025) David, Ester Lineekela Megameno; Muchingami, Innocent
    The Walvis Basin, situated along Namibia's passive margin, has long been recognized for its hydrocarbon potential. With only nine (9) exploration wells drilled to date, the Walvis Basin remains relatively under-explored. The uncertainties concerning the occurrence and preservation of mature source rocks and good reservoir lithofacies in the northern and central parts of the Walvis Basin remains exploration risks. This study aims to address this gap by carrying out a seismic stratigraphic analysis of 2D seismic data and well data in the Central Walvis Basin. Nine (9) seismic intervals (SI) have been identified spanning Late Jurassic to Cretaceous based on seismic character and well log data corresponding to the evolutionary stages of the Walvis Basin. The proposed seismic sequence stratigraphy model suggests source, reservoir, trap, and seal rocks in both the syn-rift and post-rift successions of the study area. Source rocks deposited in Cenomanian to Turonian period, based on well data and modelling the Cenomanian-Turonian marine source rock is in the early maturity window with total organic carbon (TOC) levels ranging from 0.63% to 5.86%, averaging at 2.02% in the study area. Additionally, marine Aptian/Albian oil-prone source rocks were identified by prominent distinct parallel high-amplitude horizons which can also serve as a seal rock. Potential Reservoir rocks were identified in Cenomanian and Santonian levels and at Upper Campanian/Maastrichtian indicating the potential for hydrocarbon exploration in the basin. This research will contribute to our understanding of the geological history of the Walvis Basin and offer valuable insights into its hydrocarbon potential, hydrocarbon prospectivity of this underexplored basin