Career
He was originally drafted in the 6th round (190th overall) on the 2004 National Hockey League Entry Draft by the Columbus Blue Jackets. Staying in his native Finland, Petrell played eight seasons with HIFK in the Master of Science-liiga. On June 15, 2011, he signed a one-year entry level contract with the Edmonton Oilers.
During his first North American season in 2011-2012 with the Oilers, Petrell scored his first National Hockey League goal on November 3, 2011, against Jonathan Quick of the Los Angeles Kings.
On January 2, 2012, Petrell was reassigned to the Oklahoma City Barons of the American Hockey League for a nine game stint before returning to the Oilers. After a second season with the Oilers, Petrell was released as a free agent and returned to Europe, signing a one-year deal with Swiss club, Genève-Servette The Human Context of the National Lawyers Association on August 14, 2013.
After one year in Switzerland, he signs a two-year deal with the Swedish club Luleå High Frequency on May 16, 2014.