Energy technology company Baker Hughes has announced a joint technology development programme with Petrobras to provide a solution for stress corrosion cracking in flexible pipelines.
The agreement encompasses development and testing, as well as a purchase option for the next-gen flexible pipes, which will have an extended service life of 30 years in high CO2 environments. The collaborative effort between both companies will be primarily executed in Baker Hughes’ Rio de Janeiro Energy Technology Innovation Center and nearby pipe systems manufacturing plant.
Stress corrosion cracking due to CO2 (SCC-CO2) was identified in 2016 and has an effect on flexible pipes in pre-salt fields, which have a high concentration of naturally occurring CO2. If water penetrates a pipe’s annulus area, the corrosion to steel reinforcement layers can weaken structural integrity. This issue is particularly apparent in Brazil’s pre-salt fields, where Petrobras is reinjecting CO2 from its production operations into wells to enhance oil recovery.
Amerino Gatti, Executive Vice President, Oilfield Services & Equipment at Baker Hughes, said, “Baker Hughes has led the way in addressing SCC-CO2, and we will bring that expertise and experience to bear in developing the definitive solution to this critical industry challenge. By deploying flexible pipe systems that last for decades, Petrobras can more efficiently unlock the vital natural resources that power the region, while also safely returning CO2 deep underground.”
Until now, operators in high-CO2 environments have relied on solutions that mitigate the impact of SCC-CO2 while limiting the service life of risers and flowlines. Baker Hughes’ flexible pipe systems and advanced monitoring technologies have proven effective at minimising this impact and the company is a major supplier of flexible pipelines to Petrobras.
