On 20th of November 2009, SPWLA members, geoscientists and engineers from ADCO and other operating/service companies, led by Dr. Volker Vahrenkamp (ADCO), Dr. Christoph Lehmann (ADMA), and Mostafa Haggag (ADCO, as Safety Coordinator)) set out to examine the carbonate outcrops of the Northern Emirates, which are the closest analogs to ADCO’s main oil producing reservoirs.

The first stop was at Wadi Dhayah, where the group walked along a narrow wadi to examine the Shuaiba formation and to study the fossil assemblage and the layering geometries within a sequence stratigraphic framework and relate it to the main producing reservoir of Bu Hasa Field.

At the next stop (Wadi Rahabah), not far away from the first location, the participants were exposed to the entire sequence from Dense Zone C to Shuaiba Unit A, passing through B Dense, Thamama B and A Dense (Hawar), which are also key analogs to the main ADCO subsurface formations. Here, members of the group, armed with hammers and collecting bags, clambered up the steep sides of the outcrop to study the facies architecture and the reservoir zonation of the Kharaib and Shuaiba formations.

This field visit provided a useful opportunity for inter-disciplinary discussions and knowledge sharing between junior and senior staff on geological, petrophysical, and engineering matters.

From the distance these outcrops appear to be a barren, dusty and featureless feature. However, beneath this superficial appearance lies a fascinating historical record of life on earth covering many millions of years. This field trip was a success and provided, to the non-geologists, a glimpse of UAE’s varied geological landscape.

All participants appreciated the trip organization committee, in term of transportation, accommodation, and safety.

Therefore, the participants take this opportunity to thank ADCO Management, field trip Leaders, SPWLA and all sponsors (ADMA, Baker Hughes, BJ, Schlumberger), for their kind support.

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