Relating petroleum system and play development to basin evolution: West African South Atlantic basins |
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| Authors: | Suzanne E Beglinger Harry DoustSierd Cloetingh |
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| Institution: | Netherlands Research Centre for Integrated Solid Earth Sciences, Department of Tectonics, VU University Amsterdam, de Boelelaan 1085, 1081 HV Amsterdam, The Netherlands |
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| Abstract: | Sedimentary basins can be classified according to their structural genesis and evolutionary history and the latter can be linked to petroleum system and play development. We propose an approach in which we use the established concepts in a new way: breaking basins down into their natural basin cycle division, then defining the characteristics of each basin cycle (including the type of petroleum systems and plays they may contain) and comparing them with similar basin cycles in other basins, thereby providing a means to learn through a greater population of (perhaps not immediately obvious) analogues. Furthermore, we introduce the use of the trajectory plot as a new tool in such an analysis. This methodology has been applied to the West African South Atlantic marginal basins between Cameroon and Angola, and we demonstrate that the similar tectonostratigraphic evolution of the individual basins along this margin has led to the development of similar types of petroleum systems and play (level)s. Consequently, we can make analogue comparisons among these basins in order to evaluate and predict the presence of potential, yet undiscovered, hydrocarbon accumulations in less well explored parts of the margin. |
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| Keywords: | West African margin Petroleum system type Play level Basin cycle Analogue comparison Future exploration |
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