Stratigraphical–Sedimentological Framework for the Thamama Group | Schlumberger
Tech Paper
Location
Middle East, United Arab Emirates, Asia, Onshore
Byline
Tomasz Ochmanski, Geo-Data Consulting L.L.C., Schlumberger Middle East; Mopelola Wuraola, Schlumberger Middle East; Abdulla Al Blooshi, Maryam Al Shehhi, and Ashis Shashanka Swain, Al Yasat Petroleum Operation
Society
SPE
Paper Number
203343
Presentation Date
9–12 November 2020
Products Used
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Stratigraphical–Sedimentological Framework for the Thamama Group Development in the Western UAE Based on the Legacy Core Data

How the key to the future is found in the past



Abstract

Our present-day understanding of the Barremian-Aptian depositional systems of the United Arab Emirates (UAE) is predominantly based on the data from the Eastern part of UAE, as well as on the data from the neighboring Oman. With the increasing interest in the development of the petroleum resources in the Western portion of Abu Dhabi, we need to utilize the existing data, which are available. Approximately 1400 feet of the archive core belonging to the Thamama Group and distributed in 5 wells were analyzed sedimentologically and petrologically. The emphasis was put on the comparability with the existing models from the Eastern portion of Abu Dhabi and to the spatial distribution of distinguished lithofacies.

Analyzed sediments are divided into 20 sublithofacies, grouped within 8 main lithofacies. Thicknesses, stratigraphical, and spatial distributions of each sublithofacies are given. Color and fossil assemblage complement descriptions. Finally, a short commentary with possible interpretations of a depositional environment fulfills each sublithofacies’ characterization.

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