Abstract: In order to reduce the fluctuation of crude oil properties and the over-dependence on certain kind of profitable crude oil, based on the database of crude oil evaluation and crude oil near-infrared spectroscopy，the formulated crude oil technology with the main goal of stabilizing properties of processed crude oil was developed by using advanced calculation methods. Based on the properties and characteristics of crude oil processed by a certain refinery, the formulated crude oil blending recipes were designed and selected with the processed Cabinda crude oil as the target crude oil. Thus the target crude oil and two kinds of formulated crude oils were processed and sampled to evaluate. The results showed that the similarity between two kinds of formulated crude oil and the target crude oil was more than 90%, and the yields and properties of side-line fractions were similar. The formulated crude oil not only could meet the processing requirements of the crude oil distillation unit, but also had better profit than the target crude oil.

Key words: formulated crude oil technology, crude oil assay, near infrared spectroscopy, crude oil blending