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Abstract Abu Gharadig Basin is one of the most prolific basins in the northern part of the Egyptian Western Desert. It is attracted the attention of geologists and geophysicists for oil and gas investigation and exploration. This is due to the huge subsurface sedimentary section exists in the basin which include considerable reservoir rocks within the members of the Upper Cenomanian to Maastrichtian, Khoman, Abu Roash, Lower Cenomanian Bahariya and the Albian Kharita formations. However, potential source rocks have been encountered within the Khatatba Formation and Abu Roash ”F” Member. The study area, namely, GPT oil field, Abu Sennan concession area is located at the southeast of Abu Gharadig basin, which include Abu Sennan highs. The area of study lies about 200 Km west to River Nile and located at 15 Km to the southeast of Abu Gharadig oil field. It covers about 53.69 Km2 and located between, latitudes 29° 36` and 29° 39` N (156729.11- 162411 N), longitudes 28° 36` and 28° 42` E (854929 -864614 E). The present study aims to characterization of the Upper Cretaceous reservoir of GPT oil field in Abu sennan area, based on the geological, stratigraphy, structural framework, petrophysical parameters, reservoir properties and building a 3D geological modeling. This has been done to evaluate the hydrocarbon potentialities and optimize production of the study area. The data used in this study include a complete set of well logs of eight wells (composite, gamma ray, caliper, resistivity, density, neutron and sonic logs). In addition, fourteen 2D seismic lines and vertical seismic profiling have been interpreted. |