GEOCHEMICAL CHARACTERISTICS OF LIGHT HYDROCARBONS FOR CRUDE OILS FROM RIFT BASINS IN SUDAN
Received date: 2007-05-17
Revised date: 2007-08-02
Online published: 2007-10-10
Mango discovered that the relative composition of 4 isomer of C7 has c onspicuous invariance. Thus the steady-state catalytic model for the formation of light hydrocarbons was proposed, and parameters of K-1, crude oil generation te mperature and ring preference, which adapt to oil classification and maturity c alculation, were deduced. These parameters provided new insight for the research of light hydrocarbons in crude oil. This article take the rift basins in Sudan as an example, and Mango's light hydrocarbon parameters of crude oil are calcula ted. As a result, the mean value of K1 is 1.05, which is in accordance with the hypothesis proposed by Mango. The crude oil from Moga-22 well, Fula N-6 well an d Fula C-1 well in block 6 has six-membered ring preference，however, the cru de oil from Naha-1 well in block 6 and Balome-1 well in block 4 has three-membe red ring preference, showing the diversity of their parent material types. The oil maturity of block 3 and block 7 is the lowest, while the value of block 4 is the highest, and the value of block 6 is between them.
TANG You-Jun, WEN Zhi-Gang . GEOCHEMICAL CHARACTERISTICS OF LIGHT HYDROCARBONS FOR CRUDE OILS FROM RIFT BASINS IN SUDAN[J]. Natural Gas Geoscience, 2007 , 18(5) : 756 -759 . DOI: 10.11764/j.issn.1672-1926.2007.05.756
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