BG Group said that during its drill stem test, Guara flowed at 7,200 barrels of oil equivalent per day (boepd). These flow rates were facilities-constrained, and test data indicates that a permanent production well would be capable of producing initial rates of up to 50,000 boepd.

Frank Chapman, chief executive of BG Group, said: “The well test results on Guara were excellent and underscore again the outstanding potential in BG Group’s extensive position in the world-class Santos Basin.

“Partners are fully aligned on continuing work to accelerate the full appraisal and development of these resources, with activities ongoing and planned at Tupi, Abare-West, Corcovado, Iracema, Iara, Carioca and Parati. It is clear that the Santos Basin pre-salt will make a very material contribution to the production and cash flow of BG Group for many years to come.”

BG Group and partners have agreed to a schedule which is expected to prioritise the installation of production facilities on Guara. According to BG Group, the development will use a 120,000 barrels per day Floating Production, Storage and Offloading vessel (FPSO), targeting first production from 2012. This will follow the 100,000 barrels per day first phase of the Tupi field, due on stream at the end of 2010.