收稿日期: 2007-05-17
修回日期: 2007-08-02
网络出版日期: 2007-10-10
基金资助
中国石油天然气集团公司重点项目 (编号:03B60201) ;湖北省教 育厅重点科研项目（编号：B200512001）联合资助.
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发现4个C7的异构化合物相对组成有显著的不变性，并提出了稳态催化轻烃成因 模式，推导出K1值、环优势和原油生成温度等参数，这些参数适用于原油分类和成熟 度 指标，为研究原油轻烃地球化学特征提供了新思路。以苏丹裂谷盆地为例，计算了原油的Ma ngo轻烃参数，发现K1的平均值为1.05，与Mango提出的K1值相对稳定的观点吻 合该 盆地6区Moga\|22井、Fula N-6井和Fula C-1井原油具六元环优势，而6区Naha-1井和4区 Balome-1井原油具三元环优势，表示其母质类型有异，3区和7区原油成熟度最低，4区原油成熟度最高，而6区原油成熟度位于7区和4区原油的该值之间。
唐友军, 文志刚 . 苏丹裂谷盆地原油轻烃地球化学特征[J]. 天然气地球科学, 2007 , 18(5) : 756 -759 . DOI: 10.11764/j.issn.1672-1926.2007.05.756
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.
［1］Schaefer R G. Analysis of trace amounts of hydrocarbons (C2-C8) from rocks and crude oils samples and its application in petroleum geochemistry［J］. Physics and Chemistry of the Earth，1980，12:149-156.
［2］Leythaeuser D，Schaefer R G，Weiner B. Generation of low molecul ar weight hydrocarbons from organic matter in source beds as a function of tempe rature［J］. Chemical Geology，1978，25:95-108.
［3］Leythaeuser D，Schaefer R G，Cornford C. Generation and migrati on of light hydrocarbons (C2-C7) in sedimentary basins［J］. Organic Geoche mistry，1979，1:191-204.
［4］Thompson K F M. Light hydrocarbons in subsurface sedim-ents［J］ . Geochimica et Cosmochimica Acta，1979，43: 657-672.
［5］Thompson K F M. Classification and thermal history of pet-roleum based on light hydrocarbons
[J]. Geochemica et Cosmochimica Acta，1983，47: 303 -316.
［6］Hunt J M. Generation and migration of light hydrocarbons［J］. Science，1984，1226:1265-1270.
［7］林壬子. 轻烃技术在油气勘探中的应用［M］. 武汉：中国地质大学出 版社，1990：3-4.
［8］王启军，陈建渝。油气地球化学［M］. 武汉：中国地质大学出版社，1 988：264-265.
［9］刘庆新，张敏，黄光辉，等塔里木盆地塔中地区原油轻烃组成特征及其 意义［J］.天然气地球科学，2006，17(3)：319-322.
［10］唐友军，文志刚，窦立荣，等一种估算原油成熟度的新方法［J］.天然气地球科 学，2006，17(2)：160-162.
［11］Mango F D. An invariance in the isoheptanes of petroleum［J］. Science，1987，237: 514-517.
［12］Mango F D. The origin of light hydrocarbons in petroleum: a kinetic test of the steady-state catalytic hypothesis［J］. Geochimica et Cosmochimica Acta，1990，54: 23-27.
［13］窦立荣. 苏丹迈努特盆地油气成藏机理和成藏模式［J］. 矿物岩石地 球化学通报，2005，24（1）：50-57.
［14］Ten Haven H L. Applications and limitations of Mango's li-ght hydroc arbon parameters in petroleum correlation studies［J］. Organic Geochemistry，24 :957-976.
［15］朱扬明. 稳态催化轻烃成因理论及应用前景［J］. 中国石油勘探，1998，3（3） ：5-9.
［16］朱扬明. 油气生成温度计算及其在勘探中的应用［J］. 石油实验地质，2000，22 （2）：167-171.
［17］Bement W O，Levey R A，Mango F D. The temperature of oil generatio n as defined with C7 chemistry maturity parameter (2,4-DMP/2,3-DMP ratio)
[M ]//Grimalt J O，Dorronsoro C.Organic Geochemistry : Development and Ap plications to Energy，Climate，Environment and Human History. Donostian-San Sebastian: European Association of Organic Geochemists,1994:505-507.
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