Career
Orellana"s professional career began on July 3, 2007 when he signed a contract with now defunct Salvadoran national league club, San Salvador F.C. He was one of six players from the El Salvador U17 national team, that would sign for San Salvador that season. The others were William Maldonado, Diego Chavarría, Xavier García, Óscar Arroyo and Fabricio Alfaro.
He made his professional debut on August 25, 2007, in a league match against Vista Hermosa. After a season with San Salvador he moved to Luis Ángel Firpo and played for Atlético Marte in the 2011 Clausura.
He joined Once Municipal for the 2011 Clausura.
Orellana was named in the Pre-Olympic El Salvador U-23 squad by Rubén Israel in August 2011.