OJG  Vol.4 No.12 , December 2014
Seismic Imaging and Reservoir Architecture of Sub-Marine Channel Systems Offshore West Nile Delta of 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.

Cite this paper
Sharaf, E. , Korrat, I. , Seisa, H. and Esmaiel, E. (2014) Seismic Imaging and 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.
References
[1]   Mayall, M. and Stewart, I. (2000) The Architecture of Turbidite Slope Channels. In: Weimer, P., Slatt, R.M., Coleman, J., Rosen, N.C., Nelson, H., Bouma, A.H., Styzen, M.J. and Lawrence, D.T., Eds., 20th Annual GCSSEPM Foundation Bob F. Perkins Research Conference 2000: Deep-Water Reservoirs of the World, Houston, 3-6 December 2000, 578-586.

[2]   Pirmez, C., Beauboeuf, R.T., Friedmann, S.J. and Mohrig, D.C. (2000) Equilibrium Profile and Base Level in Submarine Channels: Examples from Late Pleistocene Systems and Implications for the Architecture of Deepwater Reservoirs. In: Weimer, P., Slatt, R.M., Coleman, J., Rosen, N.C., Nelson, H., Bouma, A.H., Styzen, M.J. and Lawrence, D.T., Eds., 20th Annual GCSSEPM Foundation Bob F. Perkins Research Conference 2000: Deep-Water Reservoirs of the World, Houston, 782-805.

[3]   Jeanette, D., Garfield, T.R., Mohrig, D.C. and Cayley, G.T. (2000) The Interaction of Shelf Accommodation, Sediment Supply and Sea Level in Controlling the Facies, Architecture and Sequence Stacking Patterns of the Forties and Tay basin-Floor Fans, Central North Sea. In: Weimer, P., Slatt, R.M., Coleman, J., Rosen, N.C., Nelson, H., Bouma, A.H., Styzen, M.J. and Lawrence, D.T., Eds., 20th Annual GCSSEPM Foundation Bob F. Perkins Research Conference 2000: Deep-Water Reservoirs of the World, Houston, 3-6 December 2000, 402-421.

[4]   Posamentier, H.W. and Kolla, V. (2003) Seismic Geomorphology and Stratigraphy of Depositional Elements in Deep-Water Settings. Journal of Sedimentary Research, 73, 367-388.
http://dx.doi.org/10.1306/111302730367

[5]   Reading, H.G. and Richards, M. (1994) Turbidite System in Deep-Water Basin Margins Classified by Grain Size and Feeder System. American Association of Petroleum Geologists Bulletin, 78, 792-822.

[6]   Mayall, M. and O’Bryne, C. (2002) Reservoir Prediction and Development Challenges in Turbidite Slope Channels. Offshore Technology Conference Proceedings, Contribution No. 14029, 10 p.

[7]   Mayall, M., Jones, E. and Casey, M. (2006) Turbidite Channel Reservoirs—Key Elements in Facies Prediction and Effective Development. Marine and Petroleum Geology, 23, 821-841.

[8]   Samuel, A., Kneller, B., Raslan, S., Sharp, A. and Parsons, C. (2003) Prolific Deep-Marine Slope Channels of the Nile Delta, Egypt. American Association of Petroleum Geologists Bulletin, 87, 541-560.

[9]   Boucher, J., Dolson, J. and Heppard, P. (2004) Key Challenges to Realizing Full Potential in an Emerging Giant Gas Province: Nile Delta/Mediterranean Offshore, Deep water, Egypt. (Unpublished Talk Presented at the HGS International Explorationists Dinner Meeting on 20 September, 2004).

[10]   Said, B., Fahmi, R., Heath, M., Ahmed, D., Paul, O., Gawad, A. and Darwish, M. (2004) Simian Field Reservoir Modeling-Case for Classic Slope Channel Turbidite—WDDM Concession, Offshore Nile Delta, Egypt.

[11]   Kamal, M., Barsoum, K., Aiolfi, C. and Dalla, S. (1998) Evolution and Hydrocarbon Occurrence in the Plio-Pleistocene Succession of the Egyptian Mediterranean Margin: Examples from the Nile Delta. Institutfran?ais de pétrologie, 18, 1520-1535.

[12]   Sarhan, M. and Hemdan, K. (1994) North Nile Delta Structural Setting and Trapping Mechanism, Egypt. Proceedings of the 12th Petroleum Conference of EGPC, Cairo, 12, 1-18.

[13]   Schlumberger (1984) Chapter 1: Geolology of Egypt. Well Evaluation Conference, 1-64.

[14]   Cowan, G., Swallow, J., Charalambides, P., Lynch, S., Dearlove, M., Sobhani, K., Nashaat, M., Loudon, E., Maddox, S., Coolen, P. and Houston, R. (1998) The Rosetta P1 Field: A Fast Track Development Case Study, Nile Delta, Egypt. Proceedings of the 14th Petroleum Conference, Vol. 1, 222-235.

[15]   Barakat, M.G. (1982) General Review of the Petroliferous Provinces of Egypt with Special Emphasis on Their Geological Setting and Oil Potentialities. Cairo University, Cairo, 87 p.

[16]   Saller, A.H., Noah, J.T., Ruzuar, A.P. and Schneider, R. (2004) Linked Lowstand Delta to Basin-Floor Deposition, Offshore Indonesia: An Analog for Deep-Water Systems. American Association of Petroleum Geologists Bulletin, 88, 21-46.

[17]   Cook, T.W., Bouma, A.H., Chapin, M.A. and Zhu, H. (1994) Facies Architecture and Reservoir Characterization of a Submarine Fan Channel Complex, Jackfork Formation, Arkansas. In: Weimer, P., Bouma, A. H. and Perkins, B.F., Eds., Submarine Fans and Turbidite Systems: Sequence Stratigraphy, Reservoir Architecture and Production Characteristics, Gulf of Mexico and International. 15th Annual Research Conference of the Gulf Coast Section SEPM, 69-81.

[18]   EREX (2002) Biostratigraphic and Lithostratigraphic Interpretation of Sienna-1 and Sienna-2. Unpublished Well Report.

[19]   Cross, N.E., Cunningham, A., Cook, R.J., Taha, A., Esmaiel, E. and Swidan, N.E. (2009) Three-Dimensional Seismic Geomorphology of a Deep-Water Slope-Channel System: The Sequoia Field, Offshore West Nile Delta, Egypt. American Association of Petroleum Geologists Bulletin, 93, 1063-1086.

 
 
Top