NDLI: Seismic image prediction of Cenozoic reef-banks in the Northwestern South China Sea

Content Provider	Springer Nature Link
Author	Chen, Ping Lu, Yongchao Wang, Zhenfeng Chen, Lei
Copyright Year	2012
Abstract	The Cenozoic reef-banks reservoir in Qiongdongnan (琼东南) basin is one of the most profitable targets worthy of prospecting in the deep water area of the northwestern South China Sea. In this study, the characteristics of organic reef-like reflectors in southern uplift area of Qiongdongnan basin are analyzed based on the latest 2D and 3D seismic data. It is found that reef-like reflectors in Qiongdongnan basin show high-amplitude moundy continuous reflection at the top and the bottom, chaotic reflection inside the reef-like reflector and there is obviously speed difference between reef-like reflector body and surrounding rock. Combining the geological setting of reef and comparative analysis, the reef-like reflectors are considered to be the reef-banks. Furthermore, the results show that there are three kinds of reef structures in the southern uplift area of Qiongdongnan basin: the fault controlling structure, the fault flexure structure and the carbonate ramp structure. Each structure has its own grow-units that can reveal the growth process of the reef in order. The distribution of reef-like reflectors in space shows an arc belt pattern. According to this, four reef arc belts are identified, and their spatial trends are thought to have a good relationship with the buried fault. The internal structure constitution and the growth state of reef-like reflectors are mainly controlled by the geomorphology and monsoon-ocean current. The result has an instructive significance to oil-gas exploration of organic reef not only in Qiongdongnan basin, but also even in deep water areas of the South China Sea.
Starting Page	597
Ending Page	611
Page Count	15
File Format	PDF
ISSN	1674487X
Journal	Journal of Earth Science
Volume Number	23
Issue Number	4
e-ISSN	1867111X
Language	English
Publisher	China University of Geosciences
Publisher Date	2012-08-02
Publisher Place	China University of Geosciences
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	northwestern South China Sea reef-like reflector structure constitute control factor Earth Sciences Geology Geochemistry Geotechnical Engineering & Applied Earth Sciences Biogeosciences
Content Type	Text
Resource Type	Article
Subject	Earth and Planetary Sciences

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