ESTABLISHING THE DEPTH MAPS TO DELINEATE THE POSSIBLE TRAPS, PROSPECTS AND LEADS OF OIL RESERVOIR ZONES OF THE UPPER CRETACEOUS FORMATIONS OF GANNA FIELD, NORTHERN WESTERN DESERT, EGYPT

SAYED, M.A.; MOUSA, S.A.; LALA, A.M.; GHALY, A.

doi:10.21608/jegs.2021.385841

ESTABLISHING THE DEPTH MAPS TO DELINEATE THE POSSIBLE TRAPS, PROSPECTS AND LEADS OF OIL RESERVOIR ZONES OF THE UPPER CRETACEOUS FORMATIONS OF GANNA FIELD, NORTHERN WESTERN DESERT, EGYPT

Document Type : Original Article

Authors

¹ (1) Geophysics Department, North Bahariya petroleum Company, Zahraa El Maadi, Cairo, Egypt.

² (2) Geophysics Department, Faculty of Science, Ain Shams University, Cairo, Egypt.

³ (3) Geophysics Department, Apache Petroleum Company, El Maadi, Cairo, Egypt.

10.21608/jegs.2021.385841

Abstract

Ganna field is located in the south western part of North Bahariya Concession which lies southeast of Abu Gharadig Basin in the Northern Western Desert and is about 150 km West of Cairo city. WesternGeco was contracted to conduct a 3D land seismic survey in North Bahariya concession in August 2004. The survey covered a surface area of approximately 312 km2 and the shooting geometry was orthogonal patch with symmetrical split-spread layout.
The main objective of the present study is to delineate the structural and stratigraphic characteristics of the study area, to select new locations to be tested for exploration and to preparing development plans for increasing the production.
Geologic correlation, seismic interpretation and well log analysis, can create many chances for exploratory and development wells. This can be achieved by the interpretation of the available 2D seismic lines extracted from 3D seismic data and innovative approaches for the integration and interpretation with the borehole geophysical data.
To extract complete subsurface geo-information, the borehole geophysical data and the related geologic data are used. A variety of geologic maps such as the structure depth maps, that showed the depths of unit contacts or other surfaces of interest are created. Relevant faults will be an integral part of mapping. The structural model is to be analyzed and related to the deposited sediments. Constructing geological cross sections was carried out to clarify the complex relations between the seismic and well logging data. A correlation between log interpretation results and seismic analysis are made; distinguishing the chrono-stratigraphic boundaries and their correlations with the seismic and well log data was made.