A federal judge has accepted the charges filed against Brazil's former presidential chief of staff, for his alleged involvement in the massive corruption scheme at state-owned oil company Petrobras.

The federal prosecutor's office says Jose Dirceu will face trial on corruption, racketeering and money laundering charges filed earlier this month.

Fourteen other people will also be tried, including Joao Vaccari Neto, the former treasurer of Brazil's governing Workers' Party and Renato de Souza Duque, Petrobras' former head of corporate services.

Dirceu is the most senior member of the ruling Workers' Party to be taken into custody in connection with the scheme