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首頁» 往期文章» 2012» Issue 2» 石油地質與地球物理

Petroleum Science >2012,??Issue 2:??154-160 DOI: https://doi.org/10.1007/s12182-012-0195-8

Existence and implications of hop-17(21)-enes in the lower Cretaceous of the Saihantala Sag,Erlian Basin, China Open?Access

文章信息

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作者：Luo Qingyong,Yu Shijun,Liu Yan,Zhang Yanqi,Han Hui,Qi Lin and Zhong Ningning
作者單位：

State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;Jiangxi Division of Geological Prospecting Center, Sinoma, Shang-rao, Jiangxi 334000, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China;State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China

投稿時間：2011-07-07
引用方式：Luo, Q., Yu, S., Liu, Y. et al. Pet. Sci. (2012) 9: 154. https://doi.org/10.1007/s12182-012-0195-8

文章摘要

C31- to C35-hop-17(21)-enes are identified by gas chromatography-mass spectrometry (GC-MS) analysis to exist as double isomers in most samples of the Aershan Formation and members 1 and 2 of the Tenggeer Formation from well SH3. Comprehensive organic geochemistry and organic petrology study indicates that algae and bacteria are the main biological source of lower Cretaceous sediments in the Saihantala Sag, and this is in accordance with the existence of hop-17(21)-enes. The similar distributions of hop-17(21)-enes and hopanes of these samples indicate that hop-17(21)-enes were transformed into hopanes through hydrogenation during diagenesis processes. The existence of hop-17(21)-enes means that not only the formation of organic matter is related to an anoxic environment and a biological source of algae and bacteria, but also hop-17(21)-enes are direct indicators of hydrocarbon rock at an immature to low-maturity stage. High hydrocarbon conversion ratio, algae and bacteria source and a high abundance of organic matter suggest that the Saihantala Sag has the potential to generate immature to low-maturity low-maturity oil, which may be of great significance for oil exploration in the Erlian Basin.

關鍵詞

    Biomarkers, hop-17(21)-ene, biological source, immature oil, Erlian Basin