Geological controls on focused fluid flow in the Song Hong Basin, offshore Vietnam

  • Affiliations:

    Hanoi University of Mining and Geology, Hanoi, Vietnam

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  • Received: 13th-Jan-2021
  • Revised: 19th-Apr-2021
  • Accepted: 21st-May-2021
  • Online: 30th-June-2021
Pages: 37 - 45
Views: 1525
Downloads: 1152
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This study uses 2D seismic lines located in the central Song Hong Basin, covering an area of c. 3900 m2, in the water depth of c. 100 m. Focused fluid flows are developed intensively and can be classified into two types: blow - out pipe and seepage pipe. They have similar seismic characteristics as a vertical zone of disturbed seismic reflections. The significant difference between them is the blow - out pipes associated with seafloor pockmarks and paleo - pockmarks which are absent in the seepage pipe. Besides, the scale of the blow - out pipe is larger, compared with the seepage pipe. The blow - out pipe is c. 500 m wide and 450÷3500 ms TWT; the seepage pipe is smaller scale, c. 200 m wide and 500 ms TWT. Blow - out pipe is rooting from the sequence just above the diapir or deformation unit or deep lacustrine mudstones from the Late Eocene to Oligocene, and marine mudstones from the Early to Middle Miocene. The seepage pipe is rooting from the sequence above the diapir. The focused fluid flow is supposed to be controlled by the overpressured deep source layers and passive diapirism. The occurrence of focused fluid flow is an indicator for the active petroleum system in the study area. Intensive development of focused fluid flow proves a great hydrocarbon potential in the Song Hong basin.

How to Cite
Le, A.Ngoc 2021. Geological controls on focused fluid flow in the Song Hong Basin, offshore Vietnam. Journal of Mining and Earth Sciences. 62, 3 (Jun, 2021), 37-45. DOI:

Anka, Z., Berndt, C. and Gay, A., (2012). Hydrocarbon leakage through focused fluid flow systems in continental margins. Elsevier.

Berndt, C., (2005). Focused fluid flow in passive continental margins. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 363. 2855 - 2871.

Cartwright, J., Huuse, M. and Aplin, A., (2007). Seal bypass systems. AAPG Bulletin, 91. 1141 - 1166.

Cooper, A., (1986). Subsidence and foundering of strata caused by the dissolution of Permian gypsum in the Ripon and Bedale areas, North Yorkshire. Geological Society, London, Special Publications, 22. 127 - 139.

Delaney, P., (1987). Heat transfer during emplacement and cooling of mafic dykes. Mafic dyke swarms, 34. 31 - 46.

Løseth, H., Wensaas, L., Arntsen, B., Hanken, N. - M., Basire, C. and Graue, K., (2011). 1000 m long gas blow - out pipes. Marine and Petroleum Geology, 28. 1047 - 1060.

Le, A. N. and Ha, M. Q., (2020). Interpretation of mud diapirs using 2D seismic attributes and Unsupervised Neural Network: A case study of the Song Hong Basin. In: BUI, N. X. (ed.) Earth Sciences and Natural resources for sustainable development (ERSD2020) Conference.

Le, A. N., (2021). Seismic Characteristics of Mud Diapir in Song Hong Basin, offshore Vietnam. Iraqi Geological Journal (IGJ), Vol. 54, No. 1F.

Nguyen - Hiep, (2019). The Petroleum Geology and Resources of Vietnam. Science and Technics Publishing House.

Parnell, J. and Kelly, J. (2003). Remobilization of sand from consolidated sandstones: evidence from mixed bitumen - sand intrusions. Geological Society, London. Special Publications, 216. 505 - 513.

Rangin, C., Klein, M., Roques, D. and Le Pichón, X., (1995). The Red River fault system in the Tonkin Gulf, Vietnam. Tectonophysics, 243. 209 - 222.

Svensen, H., Planke, S., Malthe - Sørenssen, A., Jamtveit, B., Myklebust, R., Eidem, T. R. and Rey, S. S., (2004). Release of methane from a volcanic basin as a mechanism for initial Eocene global warming. Nature, 429. 542 - 545.

Wan, Z., Shi, Q., Zhang, Q., Cai, S. and Xia, B., (2015). Characteristics and developmental mechanisms of mud volcanoes on the southern margin of the Junggar Basin, NW China. Geological Journal, 50. 434 - 445.

Wan, Z., Yao, Y., Chen, K., Zhong, S., Xia, B. and Sun, Y., (2019). Characterization of mud volcanoes in the northern Zhongjiannan Basin, Western South China Sea. Geological Journal, 54. 177 - 189.

Zhenfeng, W. and Baojia, H., (2008). Dongfang 1 - 1 gas field in the mud diapir belt of the Yinggehai Basin, South China Sea. Marine and Petroleum Geology, 25. 445 - 455.