NDLI: The calculation of hydrocarbon-generating temperature

Content Provider	Springer Nature Link
Author	Tang, Youjun Tieguan, Wang
Copyright Year	2008
Abstract	How to quantitatively evaluate the maturity of crude oils is still an open question. Mango discovered a remarkable compositional invariance of four isoheptane ratios in crude oils, and proposed a steady-state catalytic model for the origin of light hydrocarbons. According to this model, 2,4/2,3 dimethylpentane ratio is a pure temperature parameter. Bement, Mango et al. established the functional equation between the two parameters—light hydrocarbon temperature and burial temperature and applied it to the calculation of hydrocarbon-generating temperature, which provided a new choice for the study of oil maturity. In this paper, the Mango’s parameters for hydrocarbons from the Tazhong area were calculated, the average K$_{1}$ value is 1.06, which is in good consistency with the Mango’s proposal that the K$_{1}$ value is relatively stable. Calculated with the functional formula of hydrocarbon-generating temperature, the hydrocarbon-generating temperatures are with the range of 120–129°C, and the converted vitrinite reflectance (R $_{o}$) varies from 0.88% to 0.90%. This is well consistent with the maturity characteristics of neohopanes. The results have verified the reliability of this method.
Starting Page	194
Ending Page	197
Page Count	4
File Format	PDF
ISSN	10009426
Journal	Chinese Journal of Geochemistry
Volume Number	27
Issue Number	2
e-ISSN	19930364
Language	English
Publisher	SP Science Press
Publisher Date	2008-07-24
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	light hydrocarbon steady-state catalysis hydrocarbon-generating temperature maturity Tazhong area Xinjiang Geochemistry
Content Type	Text
Resource Type	Article
Subject	Geochemistry and Petrology

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