Fourth presalt Libra well proves hydrocarbons

Offshore staff

RIO DE JANEIROPetrobras says a fourth exploratory well has been completed at the giant Libra oil field in the Santos basin presalt offshore Brazil.

Well 3-BRSA-1310-RJS was drilled in the central area of the block. It encountered hydrocarbons in a low-porosity reservoir, providing data for the continuing appraisal campaign over this extensive area.

Concurrently, the company and its partners are also drilling the 3-RJS-739A well in the northwest part of the block, which has already detected carbonate reservoirs containing oil. Coring operations (reservoir sample collection) are under way.

In addition, drilling has just commenced on started on well 3-RJS-741 in the north.

The partners acquired the Libra block was acquired in October 2013 and have since contracted an FPSO to conduct extended well tests. This vessel has a capacity of 50 b/d of oil and 4 MMcm/d (140 MMcf/d) of gas.

Bids are now under way to supply a second FPSO for the Libra Pilot Project, with a capacity of 180 b/d and 12 MMcm/d (424 MMcf/d).

The Libra consortium comprises Petrobras (operator, with 40%), Shell (20%), Total (20%), CNPC (10%), CNOOC (10%), and PPSA (contract manager).



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