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Abstract

This study built a 3-dimensional stratigraphic forward modeling for deepwater turbidity system from river mouth to abyssal basin via sinuous canyon in geological time-scale. The model is based on the bathymetry of Perth Canyon, Western Australia. Then this study observed the sedimentary evolution and patterns in space. Finally the possible controlling parameters are tested including inflow variables and bathymetry variables. The results show the favorable reservoirs rich in coarse sediments are located in canyon and canyon-fan transition zones. The deposition of channel and splay is more random and hard to predict because of frequent migration. The gradient on each part, depocenter migration and sediment supply no matter if concentration changes are the main controlling reasons. The sinuosity and slope gradient influences the asymmetry degree in canyon bends but will not affect submarine fan prominently. The side wall gradient and depth in canyon determines condense degree and natural levee height. It provides an important test bed for uncertainty modeling and these patterns will improve understanding of transportation and impact of depositional variables on architectures. It demonstrates that for deepwater reservoir prediction without adequate data this method and the calibration through constructing synthetic seismic data can provide new insights and reduce unnecessary investment.

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/content/papers/10.3997/2214-4609.201602392
2016-12-05
2020-04-02
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201602392
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