EVALUATION OF HYDROCARBON POTENTIALITY OF RAS ABU DARAG CONCESSION (GULF OF SUEZ) USING PETROPHYSICAL AND GEOCHEMICAL DATA | ||
| Journal of Egyptian Geophysical Society | ||
| Volume 10, Issue 1, 2012, Pages 13-23 PDF (1.82 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jegs.2012.384978 | ||
| Author | ||
| A.Z. Nouh | ||
| Petroleum Engineering & Gas Technology Department, Faculty of Engineering, The British University in Egypt, El Sherouk City, Egypt | ||
| Abstract | ||
| The Ras Abu Darag (RAD) concession is located offshore in the northern part of the Gulf of Suez basin, about 150 km ESE from Cairo. The Primary targets were the Nubia and underlying Jurassic Khatatba sandstones. Log analysis from several offset wells has shown that the rock porosity varies between 11-20 % in the Nubia, with an average net potential reservoir thickness of some 400 ft . The Jurassic section also has shown a good reservoir potential, reaching 200 ft net in some wells. The Sudr / Duwi Formation, which holds the primary source rock for the Gulf of Suez (Senonian Brown Limestone), proved to be present in many onshore Sinai wells in and around the shallow Sudr / Asl and Ras Matama fields, with an average thickness of over 600 ft. As regards water saturation, log analysis in the study wells shows values ranging between 12% to more than 40%. The geochemical analysis data indicates that the source of the onshore oil is the Cretaceous carbonates. These rocks are too shallow onshore to be mature, but are expected to be present and generative in the deep offshore basinal area . The RAD-1X prospect trend is deep within the kitchen area and should have direct access to migration fairways out of the basin . In addition , the data indicates that the deeper Jurassic clastic section (Khatatba Formation ) has fair to good source rock potential for oil. The maturity data suggest that accumulations may have been changed from relatively nearby, early mature sources meaning short migration pathways or from the more mature areas of the Nebewei and Darag basins meaning longer, more tortuous pathways . The potential estimated hydrocarbon reserves in the study area confirmed that it holds an estimated 180 million barrel oil equivelant, typed to the Jurassic and Cretaceous | ||
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