Page 63: of Offshore Engineer Magazine (Jan/Feb 2014)

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Latin America

Peregrino FPSO Peregrino. recover more resources

Photo courtesy of Øyvind Hagen / Statoil.

from Peregrino. We saw that long horizontal wells could improve technology and hile pre-salt has become possibly double what the topic du jour with regards previous owners predicted,”

W to Brazil’s offshore resource Kristiansen said.

Horizontal wells in wealth potential, there is one feld still particular were a “key capable of drawing attention away from technology” for Peregrino, pre-salt-flled eyes, the massive heavy oil

Kristiansen said. They

Peregrino project operated by Norwegian . were previously length- giant Statoil

Identifed by Statoil as the com- ened to boost production, pany’s largest internationally oper- and Statoil is planning ated feld, Peregrino is located 85km on modifying them again. (53mi) off the coast of Rio de Janeiro

Multilateral branched in the 115,000km (71,457mi) Southern wells are also utilized:

Campos Basin area.

Used extensively in heavy

Peregrino, originally discovered by oil felds in the NCS, they

Petrobras in 1994, produces 100,000 make their entrance on the bo/d from 22 producers and three

Brazilian stage in Peregrino. “Peregrino’s oil is very water injector wells. Thirty-seven (30 heavy and very viscous. We horizontal producers and seven water

The Peregrino A platform. saw that long horizontal injectors) wells are planned. Estimated

Photo courtesy of Øyvind Hagen / Statoil.

wells…could improve recovery. recoverable resources hand somewhere “Peregrino is a “We have long horizontal wells, and between 300-600 MMbo. “The [focus] of the core business of we’re currently drilling them out to into the reservoir to maintain pres- signifcant feld

Statoil in Brazil is Peregrino,” Statoil 6.5km step out of the platforms. We are sure, a method called produced water by any standards.”

Brazil Country President Thore E. stretching them out in future towards reinjection.

Kristiansen said from Statoil’s Rio de 8km. We are branching out the wells to Other ways Statoil combats the dif-

Janeiro offces. ensure that we are optimizing the reser- fculties that heavy oil like Peregrino’s

Peregrino is in Phase I production voir we are attacking.” brings is through water as a way to and is expected to produce until 2034. Statoil partnered with service com- transport the crude from the wellhead

Platforms Peregrino A and B are tied panies to develop and patent a version platforms to the FPSO. back to the foating production, stor- of autonomous infow control devices Further IOR strategies are underway. “We are at least on the drawing board age and off-take unit (FPSO) Peregrino, (AICD), already tested on the NCS in to use polymers injection to increase which has a storage capacity of 1.6 two Norwegian felds to reduce water the viscosity of water to improve dis-

MMbo and produced more than 50 production. AICD distinguishes between placement of oil/water mobility,” he

MMbo since achieving frst oil in April high-viscosity oil and low-viscosity water said. 2011.  and gas to allow in only the high-viscos-

Statoil Brazil Country President “It’s a signifcant feld by any stan- ity oil. At the Houston technology brief-

Thore E. Kristiansen dards. We believe there are 2.5 billion bo Produced water is combined with ing Margareth Øvrum, executive vice in place where we are currently operat- treated sea water and pumped back president, technology, projects and ing,” Kristiansen said, adding that a drilling (TPD) named Brazil at as a newer discovery in the area, Peregrino possible front-runner for Statoil’s frst

South “is maturing.” subsea factory, planned to be in place

At a recent technology briefng Statoil by 2020. Kristiansen, however, said that held in its Houston offce, three Statoil the world-frst wouldn’t be located in executives discussed the company’s Peregrino. focus on specifc and specialized techno- Kristiansen said that Peregrino’s Phase logical solutions. II is imminent.

Statoil places a heavy emphasis on “We believe the whole feld has 4 increased oil recovery (IOR), mostly billion bo in place. We will hopefully developed in the Norwegian Continental make a investment decision on Phase II

Shelf [NCS] and deployed elsewhere, to towards end of 2014,” he said. “It would boost production at the feld. consist of another wellhead platform tied In Houston, Lars Høier, senior vice back to the existing FPSO.” president, TPD research, development Statoil hold the operatorship stake in and innovation referred to the NCS as Peregrino with a 60% working interest “[Statoil’s] laboratory. (WI). The Sinochem Group purchased “By applying our technology [devel- the remaining 40% WI in 2010 for US$

An illustrated layout of the Peregrino feld ofshore Rio de Janiero. Image courtesy of Statoil.

oped in the NCS], we thought we could 3,070 MM. oedigital.com January 2014 | OE 65 000_OE0114_LatinAm4_Statoil.indd 65 12/19/13 4:15 PM