Over 2,000 km of risers to be contracted by Petrobras

Sept 5, 2019

Petrobras will require about 3,500 km of risers by 2023. Of this total, more than half (2,147,000 km) are still to be contracted, while 707 km have already been contracted, of which 357 km have been delivered and 283 km have contracts in progress.

The figures were presented by Petrobras’ General Manager of Underwater Engineering, André Lima Cordeiro, during a presentation at Rio Pipeline, in Rio de Janeiro.

The next contracts, involving 453 km, will only occur in 2020, as all demand for 2019 has already been contracted or received. Over the next three years, Petrobras will go to the market to contract, respectively, 348 km, 966 km and 794 km.

“We have not yet included, in this scenario, Transfer of Rights projects [whose auction is scheduled for November]. There are thousands of kilometers of pipelines yet to come, ”said the executive.

According to Cordeiro, one of Petrobras’ main demands will be for pipes of larger diameters, lighter and resistant to contaminant gases, in order to enable production in pre-salt assets.

“The problem of corrosion by CO2 and H2S is causing a lot of stress in the area of ​​risk management,” he said.

Currently, Petrobras has 5,000 km of rigid pipelines, 5,600 km of flexible and 3,600 km of umbilicals installed in its offshore projects.

Subsea equipment suppliers attended the session opened by Cordeiro. Subsea 7 vice president in Brazil, Marcelo Xavier, pointed out that the company is investing in the development of composite pipeline technologies, as well as a riser flotation system and a new rigid pipeline configuration for water depth projects, up to 3 thousand m.

For him, the industry must seize the moment to question if the products available in the market are, in fact, the best to overcome the new technological barriers.

“Petrobras now has the company of other operators that study alternatives, configurations and products with an absolutely clear view of“ total expenditure ”, rewarding and promoting products that deliver the best value over the entire project life.” , stressed the executive.

Following the incident of the Santos Basin, the pre-salt solution adopted by Petrobras in the Santos Basin is the hybrid system, consisting of flexible service lines and rigid steel lazy wave production and injection pipes.

According to McDermott’s Southern Cone general manager Paulo Veronesi, it will be necessary to resort to logistical optimizations and rationalization of the number of risers in deepwater projects to ensure their viability.

“In addition to concerns about the reliability of solutions, there is a very strong cost pressure as offshore is increasingly competing with other power sources. And today, there is no predictability of barrel price and demand like five years ago, ”said the executive.

Saipem do Brasil Engineering Director Otávio Sertã listed some of the technologies recently developed by the company, such as new welding systems and coating materials.

In 2018, the Italian company expanded its offshore pipeline fleet with Saipem Constellation, a heavy lift capable of operating in ultra-deep water fields. “It was our biggest acquisition last year,” he emphasized.

TechnipFMC Commercial Vice President Jose Mauro Ferreira said the company has been making efforts to lighten the piping to reduce or eliminate the need for riser buoys.

“The idea is to use materials that guarantee the same level of strength with a slimmer configuration,” he explained.

Source: Brasil Energia Magazine

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