¹³C NMR DEPT METHOD APPLIED TO THE STUDY OF COMPOSITIONAL CHARACTERISTICS OF CRUDE OIL

With the basis of measurements on condensates, light oils and ordinary crude oils from Sichuan, Xinjiang and Daqing etc., using the method of ¹³C NMR DEPT (Distortionless Enhancement by Polarization Tranfer), the compositional data of their relative contents and average chain length of CH, CH₂ and CH₃ are determined, in order to approach their compositional characteristics.