Rosa - Total.com

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Rosa:
Block 17 enteRs
a new phase
concessionaiRe:
sonangol
(sociedade nacional de combustíveis de angola)
paRtneRs:
total e & p angola (operator): 40%
esso exploration Block 17 limited: 20%
Bp exploration angola limited: 16.67%
statoil angola Block 17 as: 13.33%
norsk hydro dezassete a.s.: 10%
Rosa: a stRategy geaRed to optimization
Rosa was discovered in 1998, 135 kilometers off the coast of Angola.
While smaller than the neighboring Girassol and Dalia fields,
it is nonetheless one of the major reservoirs of Block 17 – the stage
on which the Group has chosen to demonstrate the full range of its
deep-offshore talents. The development scheme revolves around a
subsea network tying the field’s two main reservoirs into the Girassol
FPSO, moored some fifteen kilometers away. It consists of 14
producing wells, 11 water injection wells and four, four-slot subsea
manifolds. A network of 225 kilometers of flowlines and umbilicals
is producing Rosa’s resources at an estimated rate of 145,000 barrels
per day plateau. A Bundled Hybrid Offset Riser (BHOR) tower
standing 1,200 meters tall transfers fluids to and from the Girassol
FPSO, where extensive upgrading works were performed to boost
capacity and accommodate the installation, hookup and start-up
of seven new dedicated modules and other equipment to process
Rosa’s production.
Driven by sustainability imperatives, the choice of a tie-back solution
offers several advantages: it capitalizes on infrastructure already in
place – the Girassol FPSO – to develop the field’s reserves, and it
extends the production plateau of the Girassol-Jasmim-Rosa development
center. By finding a viable solution for a project for which
stand-alone development was perhaps not the most economical
choice at the time, Total adds a new subsea flower to Angola’s
“bouquet.” At the same time, Rosa rounds out the already rich palette
of technologies that the Group has mastered and can adapt to the
most extensive and daring developments of the deep offshore.
145,000
BARRelS
PeR DAy
PlATeAu