Petrobras has pushed back by two months the date for submission of bids in a tender for the contracting of a pioneering titanium subsea solution to serve the Buzios and Tupi pre-salt fields in the prolific Santos basin.

The Brazilian state-controlled oil company is offering an engineering, procurement, construction and installation contract designed to replace old and potentially compromised flexible pipes in Buzios and Tupi with more resistant rigid risers made of titanium.

Subsea sector sources said Petrobras has postponed the deadline for tender offers from 17 November to 13 January, after contractors have requested more time to work on their commercial proposals.