Product Launch
TOTAL S.A
A Technological Milestone
Rosa Starts Production Offshore Angola
Sonangol, the Angolan state oil company, as concessionaire, and Total, as
operator, are pleased to announce that the Angola's deepwater Rosa field in
Block 17 started production on June 18. Discovered in January 1998 at some
135 kilometres off the coast of Angola in water depths of 1,350 metres, the Rosa
field is located some 15 kilometres away from the Girassol Floating Production
Storage and Offloading (FPSO) vessel to which it has been tied back. It is the
first deepwater field of this size to be tied back to such remote installation
and in such water depths. Rosa, with proven and probable reserves amounting
370 million barrels in 100%, will maintain the FPSO's production plateau at
250,000 barrels per day until early in the next decade.
The Rosa field will comprise 25 wells, including 11 for water injection and
14 producers, which will be tied into four manifolds. The subsea installation
consists of 64 kilometres of insulated production flowlines (Pipe in Pipe) and
of 40 kilometres of water injection lines linking the Rosa to the Girassol FPSO.
An innovative riser tower docked nearby the FPSO takes the fluid over 1,200
metres from the sea floor up to the surface.
In order to receive the Rosa production, 5,600 tonnes of structure and equipment
were installed on the FPSO. The works have permanently mobilised about
400 persons on the vessel, over a period of nearly two years. During the whole
period, the treatment of the Girassol oil continued and only some scheduled
production shutdowns were required.
With Rosa on stream, all of the produced water from the Girassol, Jasmim and
Rosa fields will be reinjected in the reservoirs, thus resulting in produced
water not being discharged to the sea. In addition, Total is reducing greenhouse
gas emissions by using an innovative process that inerts and recovers gaseous
effluent from the FPSO tanks.
The extent of the works and the delicate conditions in which they had to be
carried out due to the important safety constraints imposed by continuing the
operation of Girassol facilities have made the Rosa development a first in the
world on such FPSO.
Sonangol is the Block 17 concessionaire. Total E&P Angola, operator, has a
40% interest in Block 17, alongside partners Esso Exploration Angola (Block 17)
Limited (20%), BP Exploration (Angola) Ltd. (16.67%), Statoil Angola Block 17 AS
(13.33%) and Norsk Hydro Dezassete a.s. (10%).
Total in Angola
Total is present in Angola since 1953 and held interests in production permits
both operated (Blocks 3 and 17) and non operated (Blocks 0, and 14).Total also
holds stakes in exploration permits, Blocks 15/06, 17/06 (operated), Blocks 31
and 32 (operated).
Deep-offshore Block 17 is Total's major asset in Angola. It is composed of four
major zones : Girassol and Dalia, both in production; Pazflor, which is in the
bidding process before sanction; and CLOV, a fourth major production area based
on the Cravo, Lirio, Violeta and Orquidea discoveries, whose development is
currently being studied. Future production from these fields will come in
addition to 500,000 barrels of oil per day that are currently pumped from
Girassol and Dalia structures on the Block 17. Connected to the Girassol FPSO,
Rosa will extend the production plateau of this FPSO until the next decade.
Situated in deep offshore, the major potential of Block 32 was confirmed by the
ten discoveries achieved between 2003 and 2007.
Conceptual development studies gathering the Gindungo, Canela and Gengibre
discoveries were initiated in 2005 in order to exploit these discoveries in a
production zone, in the central eastern part of the block. Studies will be
initiated to evaluate the development potential of the other discoveries.
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