Blade is one of three uncapped players named in the Ireland squad for the opening rounds of the Guinness Six Nations. His provincial team mates Tom Farrell and Jack Carty were also included in the Ireland squad named last week.
Ireland captain Rory Best said that the camp in Portugal was "a great way to gel everyone back together having knocked a few lumps out of each other in the Guinness Pro14 over Christmas."
Ireland will return to their Carton House base next week ahead of the first game of the Guinness Six Nations Championship against England.