A comparative experimental study on gas generation from saturated and aromatic hydrocarbons isolated from a Cambrian oil in Tarim basin
A comparative experimental study on gas generation from saturated and aromatic hydrocarbons isolated from a Cambrian oil in Tarim basin
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塔里木盆地寒武系石油饱和烃与芳烃生气对比实验研究
DOI：
10.2343/geochemj.1.0051
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发表时间：
2010-04
影响因子：
0.8
通讯作者：
Shen, Jiagui
中科院分区：
文献类型：
--
作者：
Gan, Huajun;Guo, Liguo;Yang, Liguo;Xiao, Xianming;Tian, Hui;Shen, Jiagui
摘要对塔里木盆地中部一寒武系油层（tz62井）中分离的饱和烃和芳烃在密封金管中进行了热解，研究了其产生的气体组分组成和碳同位素的变化规律。结果表明，在相同的热成熟度水平下，饱和烃裂解气体比芳烃裂解气体更干燥，更富12C。饱和烃裂解气体的干燥指数（定义为C1与C1 - 5的体积百分比）范围为26.2% ~ 90.6%，而在整个实验过程中，芳烃裂解气体的干燥指数从不低于60.6%。饱和烃甲烷的碳同位素变化幅度在-54.8‰~ -35.5‰之间，而芳烃甲烷的碳同位素变化幅度在-37.4‰~ -32.2‰之间。上述实验结果表明，不同体积组成原油的裂解可以产生具有不同组分和碳同位素组成的气体。
The saturated and aromatic hydrocarbons isolated from a Cambrian oil (TZ62well) in the central Tarim basin were pyrolyzed in sealed gold tubes to investigate how the gases generated from them would vary in compositions of constituents and their carbon isotopes. The results illustrates that the gases from the cracking of saturates are much drier and more enriched in 12C than the gases from the cracking of aromatics at the same levels of thermal maturity. The dryness index of the gases (defined as the volume percentage of C1 to C1–5) from the cracking of saturates ranges from 26.2% to 90.6% whereas it is never lower than 60.6% for the gases from the cracking of aromatics throughout the experiment. The methane from the saturates shows a larger carbon isotope change, ranging from –54.8‰ to –35.5‰, than the methane from the aromatics whose carbon isotopes range from –37.4‰ to –32.2‰ throughout the experiment. The above experimental observations indicate that the cracking of crude oils with different bulk compositions could produce gases that have distinct constituents and carbon isotopic compositions.
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影响因子：
5.3
作者：
C. M. Smith;P. Savage
通讯作者：
C. M. Smith;P. Savage
影响因子：
3
作者：
Hill, RJ;Tang, YC;Kaplan, IR
通讯作者：
Kaplan, IR
影响因子：
3
作者：
M. Vandenbroucke;F. Behar;J. Rudkiewicz
通讯作者：
M. Vandenbroucke;F. Behar;J. Rudkiewicz
影响因子：
3.5
作者：
B. Tissot;R. Pelet;P. Ungerer
通讯作者：
B. Tissot;R. Pelet;P. Ungerer
影响因子：
5
作者：
Yongchun Tang;Y. Huang;Geoffrey S. Ellis;Yi Wang;P. G. Kralert;B. Gillaizeau;Qisheng Ma;R. Hwang-R.-Hwa
通讯作者：
Yongchun Tang;Y. Huang;Geoffrey S. Ellis;Yi Wang;P. G. Kralert;B. Gillaizeau;Qisheng Ma;R. Hwang-R.-Hwa