从含油气检测来洞悉琼东南盆地东部发育始新统烃源岩的可能性

刘妍鷨; 陈红汉; 苏奥; 翟普强; 熊万林; 孔令涛

doi:10.3799/dqkx.2016.521

Volume 41 Issue 9

Sep. 2016

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Article Navigation > Earth Science > 2016 > 41(9): 1539-1547

Liu Yanhua, Chen Honghan, Su Ao, Zhai Puqiang, Xiong Wanlin, Kong Lingtao, 2016. Eocene Source Rock Determination in Qiongdongnan Basin, the South China Sea:A Hydrocarbon Detection Perspective. Earth Science, 41(9): 1539-1547. doi: 10.3799/dqkx.2016.521

Citation:

Liu Yanhua, Chen Honghan, Su Ao, Zhai Puqiang, Xiong Wanlin, Kong Lingtao, 2016. Eocene Source Rock Determination in Qiongdongnan Basin, the South China Sea:A Hydrocarbon Detection Perspective. Earth Science, 41(9): 1539-1547. doi: 10.3799/dqkx.2016.521

Citation:

Liu Yanhua, Chen Honghan, Su Ao, Zhai Puqiang, Xiong Wanlin, Kong Lingtao, 2016. Eocene Source Rock Determination in Qiongdongnan Basin, the South China Sea:A Hydrocarbon Detection Perspective. Earth Science, 41(9): 1539-1547. doi: 10.3799/dqkx.2016.521

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Eocene Source Rock Determination in Qiongdongnan Basin, the South China Sea:A Hydrocarbon Detection Perspective

doi: 10.3799/dqkx.2016.521

1.
Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan 430074, China
2.
Shenzhen Branch of CNOOC (China) Ltd., Guangzhou 510240, China

Received Date: 2015-12-08
Publish Date: 2016-09-15

Abstract

Abstract

It is generally held that most gas in Qiongdongnan basin, the South China Sea, is coal type gas and comes from the Oligocene and Miocene marine source rocks, while the existence of Eocene source rocks is uncertain. Determining Eocene source rocks will provide significant foundation for oil and gas exploration. The systematical analysis of fluid inclusions of 45 samples and geochemical characteristics of gas and light hydrocarbons indicate that most of the gas is oil type gas and oil-coal gas with 4 gas charging episodes. The first gas charging episode probably comes from Eocene source rocks in eastern of Qiongdongnan basin, the South China Sea. The results indicate that it probably develops kerogen type Ⅰ of Eocene source, distributed in Songnan-Baodao-Changchang depression and Beijiao depression of Qiongdongnan basin, the South China Sea, which can be regarded as advantage exploration targets.
- Eocene,
- source rock,
- fluid inclusion,
- natural gas,
- Qiongdongnan basin,
- hydrocarbons,
- geochemistry

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References(39)

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Eocene Source Rock Determination in Qiongdongnan Basin, the South China Sea:A Hydrocarbon Detection Perspective

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