Seismic Imaging and Reservoir Architecture of Sub-Marine Channel Systems Offshore West Nile Delta of Egypt
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Affiliation(s)
1Geology Department, Faculty of Science, Mansoura University, Mansoura, Egypt.
2Department of Production Management, PETRONAS (PICL) Egypt, Helwan, Egypt.
2Department of Production Management, PETRONAS (PICL) Egypt, Helwan, Egypt.
ABSTRACT
Offshore
Nile Delta gas reservoirs are dominated by slope-channel systems of
Plio-Pleistocene age. High-quality, three-dimensional seismic imaging
has significantly helped in defining the geomorphology and architectures
of these channels. Integrating seismic, logs and core data from four
wells resulted in understanding of different stages of channel
development and reservoir quality. The studied reservoirs that are
largely controlled by episodes of transgressive-regressive events
resulted in deposition of fine grained sediment and shale. Sienna
channel complex consists of unconfined channel system with clearly
defined development stages. The stages include amalgamated or stacked
channels followed by channel abandonment phases and local flooding
events. The depositional pattern continued through the Late
Pliocene-Pleistocene. SimSat-P1 and SimSat-P2 reservoirs are
characterized by isolated sand bodies, most probably relics of fan
depositional setting. The depositional scenario that is largely
controlled by successive transgression and flooding events resulted in
deposition of interbedded, sheet-like, fine grained sediment and shale.
KEYWORDS
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References
Sharaf,
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Reservoir Architecture of Sub-Marine Channel Systems Offshore West Nile
Delta of Egypt. Open Journal of Geology, 4, 718-735. doi: 10.4236/ojg.2014.412052.
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