The discovery well has been drilled on the Baleine prospect, with the support of the Ivory Coast Government. Baleine-1x discovered light oil (40° API) in two different stratigraphic levels. An evaluation programme will be carried out to assess the significant upside potential of the overall structure that extends into block CI-802, also operated by Eni with the same joint venture and participating interests in the exploration phase.
The well was drilled about 60 km off the coast, in about 1200 m of water depth with the Saipem 10 000 drill ship and reached a total depth of 3445 m in 30 days.
The Baleine-1x well was located on the basis of a comprehensive analysis of a wide range of 3D seismic data and regional studies in the sedimentary basin in Ivory Coast; the implementation of state-of-the-art technology including intelligent wireline formation testing and fluid sampling proved the presence of light oil bearing intervals of Santonian and Cenomanian / Albian age. The lower Cenomanian / Albian level shows discrete to good reservoir characteristics and has been successfully tested to production. Along with the appraisal programme, Eni and Petroci Holding will also start studies for a fast-track development of the Baleine discovery. The potential of the discovery can be preliminarily estimated at between 1.5 and 2 billion barrels of oil in place and between 1.8 and 2.4 trillion ft3 of associated gas.
Baleine-1x is the first exploration well drilled by Eni in the Ivory Coast. Besides block CI-101, Eni owns a participating interest in other four blocks in the Ivorian deep water: CI-205, CI-501, CI-504 and CI-802, all with Petroci Holding.
Read the latest issue of Oilfield Technology in full for free: Issue 3 2021
Oilfield Technology’s third issue of 2021 starts with a report from Wood Mackenzie focusing on the upstream industry’s fortunes in Asia-Pacific. The rest of the issue is dedicated to features covering offshore engineering, coiled tubing, frac technology, completion technologies, water management, well placement and much more.
Exclusive contributions come from Wild Well Control, Cudd Pressure Control, TMK, NOV, Archer, Tendeka, TETRA Technologies and more.
Read the article online at: https://www.oilfieldtechnology.com/exploration/02092021/eni-makes-oil-discovery-offshore-ivory-coast/
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