Abstract
AbstractThe study attempts to address the knowledge gap in the Bredasdorp Basin Offshore South Africa by using newly acquired seismic data with an enhanced resolution, integrating core and well log to provide a solution. The main objective of this study was a volumetric sandstone reservoir characterization of the 13At1 and 10At1 sandstones deposited in the upper shallow marine environment. The results reveal four facies grouped as facies 1(claystone), facies 2(intercalation of claystone and sandstone, facies 3(medium sandstone), and facies 4 fine-medium sandstone grain deposited in a deep marine environment. Facies 3, the medium-grained sandstone, has the best reservoir quality rock, while facies 1, which is predominantly claystone, has the least rock quality. The study has produced a calculated volume of gas in the 10At1 sand (upper and lower sand is 30.01 billion cubic feet (bcf)) higher than that of the 13At1 sand (27.22 bcf of gas). Improved seismic resolution enhanced the accuracy of results. It is advisable to focus further field development in the eastern part of the Y gas field because of good reservoir quality and production developed due to the sand in the 10At1 sequence.
Publisher
Springer Science and Business Media LLC
Subject
General Energy,Geotechnical Engineering and Engineering Geology
Reference51 articles.
1. Ashraf U, Zhu P, Yasin Q, Anees A, Imraz M, Mangi HN, Shakeel S (2019) Classification of reservoir facies using well log and 3D seismic attributes for prospect evaluation and field development: a case study of Sawan gas field, Pakistan. J Petrol Sci Eng 175:338–351
2. Asquith GB and Gibson CR (1982). Basic relationships of well log interpretation: chapter I, AAPG, Tulsa,USA,244.
3. Atlas D (1979) Log interpretation charts: Houston. Dresser Industries Inc, Texas, p 107
4. Bader S, Wu X, Fomel S (2019) Missing log data interpolation and semiautomatic seismic well ties using data matching techniques. Interpretation 7:T347–T361
5. Baiyegunhi TL, Liu K, Gwavava O, Baiyegunhi C (2020a) Impact of diagenesis on the reservoir properties of the cretaceous sandstones in the southern bredasdorp basin Offshore South Africa. Minerals 10:757
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