The focus of this workshop will be on how to optimally develop and operate moderate heavy oil with viscosity of less than 1000 cP. Contrary to conventional thinking oil viscosity can be reduced to improve flow performance within the reservoir or water viscosity can be increased to improve water:oil mobility ratio. In this workshop, 3DOs experts will share with you our experiences in heavy oil from around the world with the objective of helping you getting the most out of your heavy oil. Several case studies will be presented. Videos will be played to compliments the lectures. Participants are encouraged to give a 15 minutes presentation of own challenges and blockers to increase production