Seismic characteristics of a reef carbonate reservoir and implications for hydrocarbon exploration in deepwater of the Qiongdongnan Basin, northern South China Sea

Wu, Shiguo; Shen, Yuan; Zhang, Gongcheng; Ma, Yubo; Mi, Lijun; Xu, Ning

doi:10.1016/j.marpetgeo.2008.04.008

Cited by 90 publications

(72 citation statements)

References 6 publications

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“…The dominant role on the development of the carbonate platform and reef deposits is played by water depth, which is a response of the interplay of relative sea level changes and tectonic subsidence (Wilson 1999;Zampetti et al 2004;Sattler et al 2009;Wu et al 2008;Xie et al 2011). A 100 m high euphotic zone could have a large growth potential of reefs and carbonate platforms, while shallow water carbonates would be drowned when the rate of increase of water depth is greater than the rate of carbonate accumulation (Schlager and Camber 1986).…”

Section: Discussionmentioning

confidence: 99%

“…They can also be important for hydrocarbon exploration, because some reefs and carbonate platforms are highly porous and host nearly one half of the world's hydrocarbon reserves, containing some of the largest aquifers on the Earth (Sun and Esteban 1994;Groetsch et al 1998;Wu et al 2008;Sattler et al 2009). Due to geological and geophysical data acquired in the last decades, Cenozoic shallow water carbonates in the South China Sea have been well documented on its (1) detailed seismic features, stratigraphic architecture, and controlling factors in local regions, such as the northern rim of the Dongsha Islands (Tyrell and Christian 1992); the western Pearl River Mouth Basin (Sattler et al 2009); the Qiongdongnan Basin (Wu et al 2008;Ma et al 2011) in the northern continental margin of the South China Sea; the Phu Khanh Basin (Fyhn et al 2009), the offshore of central Vietnam (Fyhn et al 2013) in the western continental margin; the Dangerous Grounds (Ding et al 2013;Franke et al 2013) in the southern continental margin; and (2) regional time-space distributions, control processes and geologic evolution model (Wilson et al 2000;Xu et al 2002;Madden and Wilson 2013).…”

Section: Introductionmentioning

confidence: 99%

“…It also forms a regional unconformity truncating the sequence beneath (Ding et al 2013;Franke et al 2013). Most authors concluded that the carbonate platforms and patch reefs generally developed during the Early Miocene and their formation migrated from E to W and from S to N (Wu et al 2008;Ma et al 2011;Xie et al 2011;Franke et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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Oligocene–Miocene carbonates in the Reed Bank area, South China Sea, and their tectono-sedimentary evolution

Ding

Dong

et al. 2014

Mar Geophys Res

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We have analyzed two recently acquired multichannel seismic profiles across the Reed Bank area, South China Sea. A detailed seismic interpretation coupled with drilling data has proved the occurrence of a wide carbonate platform, developed between the Late Oligocene and the Early Miocene (32-20 Ma). The top of these carbonates is an important regional unconformity, corresponding to a strong and continuous seismic reflector. An age of about 20 Ma is inferred for this reflector, acting as a regional unconformity marking the cessation of seafloor spreading with an erosional/non-depositional hiatus, spanning 3 or 4 m.y. The time interval during which the carbonate platforms formed is concurrent with the opening of the South China Sea. The reconstruction of the tectonic subsidence in this area has shown a decrease in rate of subsidence during the drifting stage (32-17 Ma), indicating that the whole Reed Bank area was in a tectonically stable and shallow water environment for more than 10 m.y., favoring the development of shallow water carbonates. With a sharply increased subsidence rate after the end of spreading (17 Ma) and a continuously increased sea level, the carbonate platforms were drowned and died, except some structural highs with reef buildups, where the carbonate sedimentation continued to Middle Miocene. We suggest that delayed tectonic subsidence in Reed Bank area might have been related to a secondary mantle convection under the rift lasting more than about 10 m.y.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Oligocene–Miocene carbonates in the Reed Bank area, South China Sea, and their tectono-sedimentary evolution

Ding

Dong

et al. 2014

Mar Geophys Res

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“…It is a 290 km long and 181 km width basin with a total extent of 6000 km 2 . The west border is a strike-slip fault zone with Yinggehai Basin (Xie et al, 2006;Wu et al, 2009b). The Qiongdongnan Basin is a Tertiary basin formed by lithospheric stretching during the Paleogene, followed by thermal subsidence since the Miocene (Xie et al, 2006).…”

Section: Geological Settingmentioning

confidence: 99%

“…Acoustic basement consists mainly of Paleozoic metamorphic rocks, Mesozoic volcanic and sedimentary rocks plus a few Proterozoic metamorphic rocks (Yu et al, 1999). Cover sedimentary Tiers can exceed 8 km and the maximum burial depth exceeds 9.4 km (Wu et al, 2009b).…”

Section: Geological Settingmentioning

confidence: 99%

Polygonal faults and their implications for hydrocarbon reservoirs in the southern Qiongdongnan Basin, South China Sea

Sun

Lü³

et al. 2010

Journal of Asian Earth Sciences

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Crustal structure and extension mode in the northwestern margin of the South China Sea

Gao

McIntosh

et al. 2016

Geochem Geophys Geosyst

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Combining multi‐channel seismic reflection and gravity modeling, this study has investigated the crustal structure of the northwestern South China Sea margin. These data constrain a hyper‐extended crustal area bounded by basin‐bounding faults corresponding to an aborted rift below the Xisha Trough with a subparallel fossil ridge in the adjacent Northwest Sub‐basin. The thinnest crust is located in the Xisha Trough, where it is remnant lower crust with a thickness of less than 3 km. Gravity modeling also revealed a hyper‐extended crust across the Xisha Trough. The postrift magmatism is well developed and more active in the Xisha Trough and farther southeast than on the northwestern continental margin of the South China Sea; and the magmatic intrusion/extrusion was relatively active during the rifting of Xisha Trough and the Northwest Sub‐basin. A narrow continent‐ocean transition zone with a width of ∼65 km bounded seaward by a volcanic buried seamount is characterized by crustal thinning, rift depression, low gravity anomaly and the termination of the break‐up unconformity seismic reflection. The aborted rift near the continental margin means that there may be no obvious detachment fault like that in the Iberia‐Newfoundland type margin. The symmetric rift, extreme hyper‐extended continental crust and hotter mantle materials indicate that continental crust underwent stretching phase (pure‐shear deformation), thinning phase and breakup followed by onset of seafloor spreading and the mantle‐lithosphere may break up before crustal‐necking in the northwestern South China Sea margin.

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Seismic characteristics of a reef carbonate reservoir and implications for hydrocarbon exploration in deepwater of the Qiongdongnan Basin, northern South China Sea

Cited by 90 publications

References 6 publications

Oligocene–Miocene carbonates in the Reed Bank area, South China Sea, and their tectono-sedimentary evolution

Oligocene–Miocene carbonates in the Reed Bank area, South China Sea, and their tectono-sedimentary evolution

Polygonal faults and their implications for hydrocarbon reservoirs in the southern Qiongdongnan Basin, South China Sea

Crustal structure and extension mode in the northwestern margin of the South China Sea

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