珠江口盆地白云深水扇特征及油气成藏主控因素

王存武; 陈红汉; 陈长民; 庞雄; 施和生

Volume 32 Issue 2

Mar. 2007

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Article Navigation > Earth Science > 2007 > 32(2): 247-252

WANG Cun-wu, CHEN Hong-han, CHEN Zhang-min, PANG Xiong, SHI He-sheng, 2007. Characteristics of the Baiyun Deep-Water Fan and Main Accumulation Controlling Factors in Pearl River Mouth Basin, South China Sea. Earth Science, 32(2): 247-252.

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Characteristics of the Baiyun Deep-Water Fan and Main Accumulation Controlling Factors in Pearl River Mouth Basin, South China Sea

1.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
Shenzhen Compcmy ,China of fshore Oil Corperation Limited ,Shenzhen 518067,China

Received Date: 2006-04-30
Publish Date: 2007-03-25

Abstract

Abstract

It's very significant to discover the law of distribution of the time and space and oil-gas reservoir formation of Baiyun deep water fans in Pearl River Mouth basin, South China Sea. Based on the detailed seismologic interpretation guided by sequence stratigraphy theory, a lot of deep water sedimentary bodies, which composed of basin floor fans, slope fans, lowstand wedge and downcut channels, have been found in northern continental slope of Baiyun sag. The basin floor fans and the slope fans developing during several periods overlapped each other in vertical, distributed lobately horizontally, and connected with downcut channels. The research shows that the main accumulation controlling factors of the Baiyun deep-water fan include: (1) there are active source rocks with great petroleum generation potentiality in the Baiyun sag; (2) there developed conducting frameworks, which include faults, continue distribution sandstones, unconformable surface and diapiric zone; (3) the deep-water fans developed during low water periods and the mudstone layers over them developed during high water periods, which are both good factors for petroleum store and cover; (4) the accumulation and leakage of overpressure are important for the hydrocarbon expelling from source rocks. So the Baiyun deep-water fan has good accumulation conditions and it can be a favorable object for deep water exploration in the Pearl River Mouth basin.
- Pearl River Mouth basin,
- Baiyun deep-water fan,
- main accumulation factors,
- accumulation conditions

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Characteristics of the Baiyun Deep-Water Fan and Main Accumulation Controlling Factors in Pearl River Mouth Basin, South China Sea

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