首页|期刊导航|中国地球化学学报（英文版）|Molecular fossils and sources of Cambrian heavy oil of Well Tadong-2 in theTarim Basin, Xinjiang, China
中国地球化学学报（英文版）2009，Vol.28Issue(3)：314-319,6.DOI:10.1007/s11631-009-0314-4
Molecular fossils and sources of Cambrian heavy oil of Well Tadong-2 in theTarim Basin, Xinjiang, China
Molecular fossils and sources of Cambrian heavy oil of Well Tadong-2 in theTarim Basin, Xinjiang, China
摘要
Abstract
Research on the molecular fossil characteristics of heavy oil from Well Tadong-2 is of great importance to constrain the source of marine crude oils in the Tarim Basin, Xinjiang, China. The authors synthetically applied the isotope mass spectrograph, chromatography and chromatography-mass spectrography to the studies of molecular fossil characteristics of heavy oil from Well Tadong-2 in the Tarim Basin, and the results obtained revealed that heavy oil from Well Tadong-2 is characterized by high gammacerane, high C28 sterane, low rearranged sterane and high C27-triaromatic steroid, these characteristics are similar to those of Cambrian-Lower Ordovician source rocks, demonstrating that Cambrian crude oils came from Cambrian-Lower Ordovician source rocks; condensed compounds (fluoranthene, pyrene, benzo[a]anthracene, bow, benzo fluoranthene, benzopyrene) of high abundance were detected in heavy oil from Well Tadong-2, and the carbon isotopic values of whole oil are evidently heavy, all the above characteristics revealed that hydrocarbons in the crude oils became densified in response to thermal alteration.关键词
molecular fossil/oil-source rock correlation/thermal alteration/heavy oil/Tarim BasinKey words
molecular fossil/oil-source rock correlation/thermal alteration/heavy oil/Tarim Basin分类
天文与地球科学引用本文复制引用
TANG Youjun,ZAN Ling..Molecular fossils and sources of Cambrian heavy oil of Well Tadong-2 in theTarim Basin, Xinjiang, China[J].中国地球化学学报（英文版）,2009,28(3):314-319,6.基金项目
This research project was funded by the National Natural Science Foundation of China (Grant No. 40773039). （Grant No. 40773039）
