High acuity capillary chromatographic column and crude oil fingerpring technique were adopted to analyze and inspect crude oil from nine different areas and sources in Yangchang Oilfield. The  content of normal alkane, pristane and phytane in oil samples were determined by gas chromatography (GC). The results showed that the crude oil idetification method of normal alkane delineation characteristic combined with the ratio of pristanes characteristic area to phytane was effective and at the same time, was not impacted by enter samples and chromatogram conditions. To confirm further the validity and reliability of this method, we used it to Identify different kinds of petroleum products and then, investigated the influence by weathering. In the paper, the technique was called the weighted plot method. An universal Spectral library for identification of the oil spill can be developed by this method because of its merits.

Identification of the crude oil

243rd National Meeting (2012)

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