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4D seismic to boost production from Shell deepwater project offshore Brazil

04th October 2013

Shell applies 4D reservoir monitoring technology to spur production from phase 2 development of Parque das Conchas project off Brazil’s south-east coast

4D seismic to boost production of Shell deepwater project offshore Brazil
FPSO Espírito Santo has a design capacity of 100,000 bpd of oil and 50 million cubic feet per day of natural gas

Shell is using 4D seismic monitoring technology to successfully implement the recently launched phase 2 subsea development of Parque das Conchas, a deepwater FPSO project offshore Brazil, as part of a three phase programme to boost production from the reservoir.


A 4D Life of Field seismic monitoring system was installed as part of phase 2 of subsea development at Parque das Conchas (BC-10), an ultra-deepwater project which lies in around 1,780 m of water in the Campos Basin.


Shell deployed a network of seismic sensors throughout the field on the seabed, the deepest installation of its kind on a full-field scale in the world. “[This] allows us to more effectively and efficiently monitor the reservoir,” the oil company said in a written statement.


4D reservoir monitoring consists of 3D repetitive seismic images to monitor the movement of oil reservoir fluids over time to increase the percentage of oil extracted.


BC-10 subsea development


BC-10 is undergoing a three-phase subsea development programme to maximise the production life of the reservoir.


Phase 1 began production in 2009, reaching in 2010 a peak production of over 90,000 barrels of oil equivalent (boe) per day. Current production levels are at 35,000 boe per day, a nearly 40 per cent decrease.


Phase 2 began production on Wednesday, with Shell announcing first oil from the reservoir. At its peak, phase 2 is expected to produce an additional 35,000 boe per day.


In July 2013, Shell and its partners gave a green light to phase 3, which is expected to reach a peak production of 28,000 boe.


BC-10 is comprised of three subsea fields, Ostra, Abalone and Argonauta, which are tied back to a floating, production, storage and offloading (FPSO) unit, the Espírito Santo. The second and third phase of development are connecting additional reservoirs to the FPSO.


Shell is the operator of BC-10 with a 50 per cent stake, Petrobras holds a 35 per cent share and ONGC the remaining 15 per cent.