The fuzzy cluster analysis method was applied to classify a crude oil in accordance with its nine property items and the accumulated evaluation data of other crude oils.The process scheme of the crude oil to be processed could be determined on the basis of the properties and distillate yield distribution of the most closely clustered crude oil.Take nine crude oils in western China as an example,the crude oil to be processed was very similar to Nanjiang Oil.Thus the problem that detailed crude oil evaluation...