On April 21, 2014，Dr. Xu, Dr. Sun and Mr. Hu were invited by Propak Systems, Airdrie, Canada, to provide a training course on API 618 design of reciprocating compressor packages for a delegation from Jiling Oilfield, China. Dr. Xu introduced API 618 design approaches (DA1, DA2 and DA3) and their applications. He also shared his expertise on design practice of compressor packages with all attendee. Dr. Sun and Mr. Hu answered technical questions proposed by the delegation members. All attendees from Propak and delegation gave highly favourable feedback on the success of the training course.