PARTITION EXPERIMENT OF GC FINGERPRINT OF CRUDE OIL

The trace compounds in hydrocarbon can be discriminated and calculated by gas chromatography (GC).Chemical model of commingled production wells was established based on its developing process.Partition experiment and chemical simulation of GC fingerprint compounds were carried out in one reservoir of Gangxi area in Dagang oilfield.The results showed that not all GC fingerprint compounds were partitive,which were resulted from the geological setting of oil generation,the properties and concentration of oil composition,the resolution of chromatogram,and the quantitative method of fingerprint parameters.Therefore,only the partitive fingerprint compounds can be used to monitor the performance of developing wells.At the same time,the method provided a new thought for the quantitative simulation of hydrocarbon generation of different source rocks and for the monitoring of air and water pollution.