In the process of batch transportation, when the temperature of mixing oil is below the solidifying point, the pipeline is easy to be congelation. Although the high temperature could ensure the safety transportation, it could lead to the loss of energy consumption. Therefore, it was necessary to study the transportation from the point of energy saving and safety. Combined with the solidifying point of the mixed oil segment experiment and Changchun to Jilin pipeline,the mixed oil segment temperature field of cold and hot crude oil was simulated by CFD software. Compared with the experimental results, we found out the dangerous point, which reduced the heated temperature of cold oil and achieved the goal of energy conservation. At the same time, two kinds of transportation solutions of safety and energy conservation were given: The Russian oil was heated to 10.0 ℃ in the whole process；only the oil tail was heated to 30.0 ℃ with the heating length of 1 380.8 m. Through economic comparison, the cost of the first delivery scheme was reduced by 91.54% than the traditional transportation, the cost of the second transportation scheme was reduced by 98.16% than the traditional transportation cost, and the energy saving effect of the second transportation scheme was better than the first kind of transportation scheme，which had a certain guiding significance for industrial production．

With the continuous demand of energy, more and more light crude oil was consumed while conventional crude oil production decreased year by year. Therefore, heavy oil as the effective supplement of conventional crude oil was gradually concerned by people. And how to efficiently and economically transport super heavy oil attracted people's attention. A light oilblending and transportation process for super-heavy oil used by an oil field were characterized. By using a RS300 viscometer and other instruments, the dieselsuper heavy blend for the viscosity-temperature and rheological properties, solidifying temperature and stability were studied. The results show that the volume fraction of diesel up to 25%, diesel fuel blended with super heavy oil freezing point was low. And the blend had good fluidity, stability, as well as the process had good economical efficiency. When the volume fraction of diesel oil was further increased, the freezing point was not changed.