In July of last year Siemens Energy announced two contracts from Brazil for a total of 17 compressor trains. Brazilian oil major Petrobras is to install six gas turbine-driven compressors in a gas treatment plant in the state of Espirito Santo. Siemens is to deliver a further 11 compressor trains to the Brazilian company Transportadora Gasene S.A. for installation in three pipeline stations along the Brazilian coast. The total order value for Siemens, including spare parts and associated services for erection and commissioning, was placed at about US$115 million. This contract is an add-on order for the first one booked in June 2006 to supply two compressor trains.

Siemens Compressor

Enclosures are readied at Siemens’ Houston facility for more of the 17 gas turbine compressor packages destined for Brazilian projects with Petrobras and Transportadora Gasene. Each enclosure houses a 7.68 MW Siemens STG-200 gas turbine, along with a compressor supplied by either Siemens or Rolls-Royce.An SGT-200 gas turbine from Siemens awaits packaging in the Houston facility.

Petrobras is investing extensively in the oil and gas exploration and production area in the Espirito Santo Basin in southeastern Brazil. To process the gas produced offshore, Petrobras is building a gas treatment plant onshore at Cacimbas. For this project Siemens will supply six compressor trains, each comprising an STC SV08-8-B compressor manufactured in Duisburg, Germany, and driven by 7.68 MW SGT-200 gas turbines, which are manufactured in Lincoln, U.K. Work continues toward meeting the delivery goals at the Siemens packaging facility in Houston, according to Christean Kapp, vice president of marketing and sales for the Oil & Gas Division of the Siemens Energy Sector in the Americas. “The first two Cacimbas units were shipped in March, with the first two Gasene units to be shipped in May 2008 and follow-on deliveries in the next 12 months.” After treatment, the gas will be transported via pipelines linking the southeast and northeast Brazilian regions.

Transportadora Gasene selected Siemens to supply the necessary 11 compressors also driven by SGT 200 gas turbines. The compressors in this part of the order are model RF3BB20s being supplied by Rolls-Royce. They will be installed in three pipeline stations, including Piuma, Aracruz and Prado. “These projects — consisting of pipelines and its gas stations — are included in the PLANGAS – Early Gas Production Plan, with a nominal capacity of 40 MMm3/day produced offshore in the Campos and Espirito Santo Basin, allowing more flexibility from today’s available gas sourcing.

It will be also be possible to link the southeast gas grid to the northeast gas grid,” explained João Fernandes, the international account manager for Petrobras with Siemens Brazil. Siemens’ Houston packaging and test facility, which was part of its acquisition from Alstom in 2003, provides new unit sales and marketing for the Americas for a range of Siemens industrial products, including steam turbines from 80 to 180 MW; process compression solutions; small and medium gas turbines from 5.0 to 47 MW; engineering,

 SGT-200 gas turbine

An SGT-200 gas turbine from Siemens awaits packaging in the Houston facility.

procurement and testing; and service overhaul capabilities. “Out of our Houston facilities, we are providing for installation of the gas turbines and compressors and also providing training, erection and commissioning support,” Kapp said. “In addition, we’ve been involved in the Gasene project with much of the related process equipment, including process coolers and scrubbers.”

The facility’s package test capabilities include up to 15 MW full-load string tests and closed-loop compressor testing on liquid fuels, natural gas or dual fuel, with low- and high-pressure natural gas lines up to 48.3 bar. There is also on-site control cabinet assembly and functional testing of electrical,
mechanical and control devices. “While the compressor order for Brazil will not be string tested, we have
done string testing on compressor packages for Petróleos de Venezuela,” Kapp noted. “We do this string testing when the customer requests this service.

“We are very pleased with the development of the Latin American pipeline market for Siemens,” Kapp noted. “In fact, our prospects are generally quite good with 20 SGT-400 SV sets being erected and commissioned with PDVSA (Petróleos de Venezuela, S.A.) in Venezuela for the Anaco gas gathering and ICO pipeline projects for a total of 360 000 horsepower (268 000 kW), as well as a recent order for TGP in Peru for four 18 000 horsepower (13 400 kW) SGT-400 high-pressure gas pipeline transmission sets. And further large onshore projects in Argentina, Brazil and Venezuela have been identified.”

Fernandes added, “The Petrobras awards consolidate a leading position that Siemens has in this market sector, with 45 gas turbines awarded from key oil and gas companies over the last three years.” Siemens Energy is a leading supplier of a spectrum of products and solutions for the generation, transmission and distribution of power and for the extraction, conversion and transport of oil and gas. It comprises the former Power Generation and Power Transmission and Distribution Groups, and the Oil, Gas and Marine Solutions Division of the Industrial Solutions and Services Group.

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