Conduit system and formation mechanism of heat fluids in diapiric belt of Yinggehai basin, China

Xie, Xinong; Li, Sitian; Hu, Xiangyun; Dong, Weiliang; Zhang, Minqiang

doi:10.1007/bf02877783

Cited by 11 publications

(6 citation statements)

References 4 publications

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“…Most of them do not reach the sea floor and disappear in shallow strata within the normally pressured system, such as in the DF1‐1 (Fig. 7A) and LD20‐1 structures (Xie et al . 1999b).…”

Section: Distribution Of Fluid Migration Pathways and Their Mechanismmentioning

confidence: 99%

“…6), which covers the central part of the Yinggehai Basin. Three mud‐rich layers were deposited during the postrift stage: the lower Member of the Pliocene Yinggehai Formation (T27‐T30), the upper Member of the Middle Miocene Meishan Formation (T40‐T41) and the Lower Member of Early Miocene Sanya Formation (T51‐T60) (Xie et al . 1999b).…”

Section: Distribution Of Fluid Migration Pathways and Their Mechanismmentioning

confidence: 99%

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Seismic evidence for fluid migration pathways from an overpressured system in the South China Sea

Xie

et al. 2003

Geofluids

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Overpressured systems and intense, anomalously hot¯uid expulsion in the Yinggehai Basin of the South China Sea offer an opportunity to understand the history of¯uid¯ow and the process of hydrocarbon accumulation in overpressured environments. Fluid migration pathways from overpressured compartments in the basin are largely controlled by the distribution of faults and fractures. Episodic opening of these faults are related to the dynamics of an overpressured system and tectonic movements during basin evolution. At the crests of diapiric structures,¯uid expulsion is seismically imaged as chimney-or plume-like features, low to middle seismic amplitudes, and intermittently chaotic and blank re¯ecting seismic facies. These¯uid pathways are controlled by vertical faults, which commonly penetrate overpressured and overlying normally pressured zones. Fluid expulsion is also observed near the main faults, such as the No. 1 Fault at the north-eastern margin of the basin. Investigation by sidescan sonar on onshore and offshore Hainan Island indicates that there are more than 100 gas seepages adjacent to the No. 1 Fault. Migration pathways in the diapiric structures are controlled by three types of fault and fracture. Penetrative faults formed by dextral strike-slip movement of the Red River faults commonly occur in the centre of the diapirs, and may have been a triggering factor for the diapirism, and controlled their distribution. Hydrofractures occur in certain mud-rich layers and may have been generated by hydraulic fracturing. Radial normal faults occur at the top of diapirs and were formed by the intrusive process. These¯uid migration pathways played an important role in regional hydrocarbon accumulation.

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“…Most of them do not reach the sea floor and disappear in shallow strata within the normally pressured system, such as in the DF1‐1 (Fig. 7A) and LD20‐1 structures (Xie et al . 1999b).…”

Section: Distribution Of Fluid Migration Pathways and Their Mechanismmentioning

confidence: 99%

Section: Distribution Of Fluid Migration Pathways and Their Mechanismmentioning

confidence: 99%

Seismic evidence for fluid migration pathways from an overpressured system in the South China Sea

Xie

et al. 2003

Geofluids

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“…Discontinuous seismic reflection in these structures and bright-spots along two sides of these structures (Fig. 7a, b, d) indicated the cause of fluid diapir (Xie et al 1999(Xie et al , 2001. In the diapirs, the deep strata were arched, but shallow strata were fallen which was resulted from natural gas injection in a and b (see e for the location of a-d) Mar Geophys Res (2013) 34:195-207 201 Well 3 are situated accordant with diapir in Fig.…”

Section: Fluid Diapirsmentioning

confidence: 94%

“…7a, b, and revealed that the diapir is rich in CO 2 . Besides rapid subsidence, high proportion of fine sediments, high geothermal gradient, transtensional and shearing stress fields all played important roles in diapirism (Xie et al 1999(Xie et al , 2001Cartwright 1994;Wang and Xie 1998). Diapirs usually benefit from pre-existing cracks and faults formed by transtensional action such as that in Fig.…”

Section: Fluid Diapirsmentioning

confidence: 99%

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Transtensional tectonism and its effects on the distribution of sandbodies in the Paleogene Baiyun Sag, Pearl River Mouth Basin, China

Wang

Pang²,

Tang

et al. 2013

Mar Geophys Res

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Characteristics and accumulation mechanisms of the Dongfang 13-1 high temperature and overpressured gas field in the Yinggehai Basin, the South China Sea

Xie

Huang

2014

Sci. China Earth Sci.

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Conduit system and formation mechanism of heat fluids in diapiric belt of Yinggehai basin, China

Cited by 11 publications

References 4 publications

Seismic evidence for fluid migration pathways from an overpressured system in the South China Sea

Seismic evidence for fluid migration pathways from an overpressured system in the South China Sea

Transtensional tectonism and its effects on the distribution of sandbodies in the Paleogene Baiyun Sag, Pearl River Mouth Basin, China

Characteristics and accumulation mechanisms of the Dongfang 13-1 high temperature and overpressured gas field in the Yinggehai Basin, the South China Sea

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