Formerly known as Carioca Oilfield, Lapa Oilfield is located approximately 270km off the coast of Sao Paulo, Brazil, in water depths of approximately 2,140m, within block BM-S-9 of the pre-salt Santos Basin.
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The partners in the field development include its operator Petrobras (45%), BG E&P Brasil (30%) and Repsol Sinopec Brasil (25%).
The declaration of commerciality for the field was submitted to the Brazilian National Agency of Petroleum, Natural Gas and Biofuels (ANP) in December 2013 and the field development plan was submitted to ANP for approval in 2014.
The Brazilian oilfield is estimated to contain recoverable reserves of 459 million barrels of oil equivalent (boe). First production from the field was achieved in December 2016 and peak production of 80,000 barrels of crude oil a day is expected from 2017 to 2019.
The ‘Cidade de Caraguatatuba MV27’ floating production, storage and offloading (FPSO) unit is deployed at the field. The FPSO was delivered in 2016.
Discovery and drilling of Lapa Oilfield wells
The oilfield was discovered in September 2007 with the drilling of the 1-BRSA-491-SPS (Carioca) well. The discovery well flowed at a rate of approximately 2,900 barrels of 27º API oil and 57,000m³ of gas a day.
The 4-SPS-66C Abare West discovery was made in September 2009. The well was drilled to a depth of 5,150m and contained a small amount of oil, gas and carbon dioxide.
The drilling of the 3-BRSA-861-SPS (3-SPS-74) well, also known as Carioca Nordeste (Carioca north-east), was completed in January 2011. The well confirmed the presence of 26º API oil in 200m of good quality reservoir below the seabed. An extended well test of Carioca Nordeste well in November 2011 suggested a potential production of roughly 28,000 barrels of oil per day (bopd).
Located in the Santos Basin, Brazil, Libra oilfield is one of the biggest deepwater oil discoveries in the world.
The drilling of the Abaré 4-SPS-81A (4-BRSA-973A-SPS) well was completed in November 2011. The well was drilled to a depth of 4,830m and oil flowed at 23,400 barrels a day, suggesting a potential production of more than 28,000 barrels a day of 28º API oil.
The drilling of the Iguaçu Mirim3-SPS-101 (3-BRSA-1179-SPS) well was completed in August 2013. The well confirmed the presence of 20º API oil within pre-salt carbonate reservoirs at a depth of more than 4,850m.
FPSO Cidade de Caraguatatuba MV27 details
Cidade de Caraguatatuba MV27 FPSO possesses an oil processing capacity of 100,000 barrels a day, a gas processing capacity of 177 million cubic feet a day, an oil storage capacity of 1.6 million barrels and a water injection capacity of 120,000 barrels of water per day (bwpd).
Contractors involved
The engineering, procurement, construction and installation (EPCI) contract for the FPSO was awarded to Modec and Schahin, who also charters the facility for at least 20 years. Additional investors in the FPSO project are Mitsui & Co, Mitsui O.S.K. Lines and Marubeni Corporation.
The topsides of the FPSO were jointly constructed by MODEC and TOYO Offshore Production Systems (MTOPS). The spread mooring system for the FPSO was provided by Sofec.
GE has been contracted to supply four of its LM2500+G4 aeroderivative gas turbine generators, which generate 85MW of electricity required for the FPSO. EPS supplied its meter1 and meter2metering solutions for the FPSO.
Wood Group Kenny was awarded a contract in August 2014 to perform conceptual engineering study for the field’s pipeline heating systems and provide certain subsea engineering support services for the project.
