共 27 条
Generation and evolution of diamondoids in source rock
被引:17
作者:
Fang, Chenchen
[1
,2
]
Xiong, Yongqiang
[1
]
Li, Yun
[1
]
Chen, Yuan
[1
]
Tang, Youjun
[3
]
机构:
[1] Chinese Acad Sci, Guangzhou Inst Geochem, SKLOG, Guangzhou 510640, Guangdong, Peoples R China
[2] PetroChina Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China
[3] Yangtze Univ, Dept Geochem, Jingzhou 434023, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Diamondoids;
Extractable organic matter;
Kerogen;
Evolution characteristics;
CRUDE OILS;
DIFFERENT GENOTYPES;
HYDROCARBON RATIOS;
HYDROUS PYROLYSIS;
THERMAL-CRACKING;
ADAMANTANES;
PETROLEUM;
MATURITY;
DIAMANTANES;
BIODEGRADATION;
D O I:
10.1016/j.marpetgeo.2015.05.018
中图分类号:
P [天文学、地球科学];
学科分类号:
07 ;
摘要:
Thermal maturation-related variations in the abundance and distribution of diamondoids in source rocks were investigated by thermal simulation experiments on extracts and kerogen obtained from a same marine shale, and by quantitative analysis of diamondoids within pyrolysates using highly sensitive and selective gas chromatography-triple quadrupole mass spectrometry (GC-MS-MS). The results indicate that diamondoids within the marine shale are generated mainly during 0.8%-1.7% EasyRo, generally deriving from extractable organic matter within source rocks, and are destroyed after 1.7% EasyRo to be entirely removed by ca. 3.0% EasyRo. Ternary plots of the relative distribution of diamondoids and bivariate diagrams for diamondoid parameters (e.g., DMA/MD vs. DMAI-1, and DMA/MD vs. TMAI-1) show systematic changes in diamondoids with increasing thermal maturity (expressed as EasyRo). (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码:197 / 203
页数:7
相关论文