Formation of anomalous gas fields of helium and hydrogen in the Cat Ba, Co To and Bach Long Vi islands, northern Vietnam

Syrbu  Nadezhda; Luong Le Duc; Kholmogorov  Andre; Hoang Nguyen

doi:10.15625/2615-9783/16197

Author affiliations

Authors

Syrbu Nadezhda V.I. Il`ichev Pacific Oceanological Institute Far Eastern Branch Russian Academy of Science, Baltiyskaya str., 43, Vladivostok, Primorsky Kray, 690041 Russia
Le Duc Luong 1- Institute of Geological Sciences, Vietnam Academy of Science and Technology, 84 Chua Lang, Dong Da, Hanoi. 2- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam
Kholmogorov Andre V.I. Il`ichev Pacific Oceanological Institute Far Eastern Branch Russian Academy of Science, Baltiyskaya str., 43, Vladivostok, Primorsky Kray, 690041 Russia
Nguyen Hoang 1- Institute of Geological Sciences, Vietnam Academy of Science and Technology, 84 Chua Lang, Dong Da, Hanoi. 2- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/2615-9783/16197

Keywords:

hydrogen, helium, methane, Cat Ba Island, northern Vietnam shelf

Abstract

Data of methane, helium and hydrogen concentrations in the mineral waters, as well as in the subsurface atmosphere, of the Cat Ba, Co To and Bach Long Vi islands, shows that the regions belong to degassing zones of hydrogen and helium, and points at gas condensate potential of the Bac Bo sedimentary basin. A joint transit of these gases via the fault structures was established. Distribution patterns of hydrogen and helium concentrations from these islands (Tonkin Gulf) were obtained from the gas and water sample data. Thermogenic and metamorphogenic gases detected in hydrogeological wells on Cat Ba island and gas anomalies in subsurface gas indicate natural gas emission through permeability zones.

The work was carried out within the framework of the joint Russian-Vietnamese Laboratory on Marine Geosciences (V.I.Il`ichev Pacific Oceanological Institute FEB RAS and Institute of Marine Geology and Geophysics, VAST). The research involves the staff and scientific equipment of the new innovative Laboratory for Integrated Research of the Environment and Mineral Resources (LIREMR) of the POI FEB RAS, created within the framework of the SCIENCE national project.

Downloads

Download data is not yet available.

References

Areshev E.G., 2003. Oil-and-gas content of the Far East and Southeast Asia shelf seas. Moscow, Avanti, pp.288.

Dai Jinxing, Deyu Gong, Yunyan Ni, Shipeng Huang, Wei Wu. 2014. Stable carbon isotopes of coal-derived gases sourced from the Mesozoic coal measures in China. Organic Geochemistry, 74,123-142.

Drogue С., Cat N.N., Daz J., 2000. Geological factors affecting the chemical characteristics of the thermal waters of the carbonate karstified aquifers of Northern Vietnam. Hydrology and Earth System Sciences, 4(2), 332-340.

Duong Quoc Hung, et al., 2019. A study on the relationship between gas-geochemical field and tectonic fault activities in the river mouth of Gulf of Tonkin. Vietnam Journal of Marine Science and Technology, 19(2), 191-198.

Gavrilov V.P., Leonova E.A., Rybal’chenko V.V., 2011. Mud volcanism and petroleum potential in the Song Hong trough, northern shelf of Vietnam, in Tr. Ross. Gos. Univ. Nefti Gaza, 4, 28-37.

GOST R 53239-2008, 2009. Khranilishcha prirodnykh gazov podzemnye. Pravila monitoringa pri sozdanii i ekspluatatsii (GOST R 53239-2008. Repository of Underground Gases: Monitoring Rules during Building and Exploitation). pp. 19, Moscow, Standartinform.

Normativno-metodicheskoe obespechenie okhrany atmosfernogo vozdukha (Normative-Methodical Provisions for the Protection of Atmospheric Air). 1995. Perm, Intereko, 2, pp.249.

Obzhirov A., et al., 2004. Relations between methane venting, geological structure and seismo-tectonics in the Okhotsk Sea. Geo-Marine Letters, 24, 135-139.

Porotov G.S., 1977. Matematicheskie metody pri poiskakh i razvedke poleznykh iskopaemykh (Mathematical Methods in the Prospecting and Exploration of Mineral Resources). Leningrad. Leningr. Gorn. Inst., pp.106.

Shakirov R.B., 2018. Gazogeokhimicheskie polya morei Vostochnoi Azii (Gas-Geochemical Fields in Seas of East Asia), Moscow, GEOS, pp.341.

Shakirov R.B., et al., 2020. First complex Russian-Vietnamese geological-geophysical and oceanographic expedition in the South China Sea, R/V Akademik M.A. Lavrentev (Cruise 88, 2019). Vestn. DVO RAN, 3, 138-152.

Shakirov R.B., et al., 2015. Peculiarities in the distribution of natural gases in bottom sediments and water in the northwestern Tonkin Gulf. Geogr. Prirodn. Resursy, 4, 178-188.

Shakirov R.B., et al., 2019. Methane anomalies, its flux on the sea-atmosphere interface and their relations to the geological structure of the South-Tatar sedimentary basin (Tatar Strait, the Sea of Japan). Mar. Geophys. Res., 40, 581-600. https://doi.org/10.1007/s11001-019-09389-3. https://doi.org/10.1007/s11001-019-09389-3.">

Smirnov B.V., 1983. Veroyatnostnye metody pognozirovaniya v inzhenernoi geologii (Probabilistic Methods of Prognosis in Engineering Geology), Moscow, Nedra, pp.134.

Sokolov V.A., 1971. Geokhimiya prirodnykh gazov (Geochemistry of Natural Gases). Moscow, Nedra, pp.336.

Syrbu N.S., et al., 2020. Formation of abnormal gas-geochemical fields of methane, helium and hydrogen in the area of northern Vietnam, coastal and adjacent area. Lithology and Mineral Resources, 55(6), 512-527.

Ta Hoa Phuong, Tran Trong Hoa, Tran Duc Thanh, Nguyen Huu Cu, 2009. Diverse geology at Cat Ba archipelago - base to build a geopark. Journal of Sciences of the Earth, 31(3), 236-247 (in Vietnamese).

Truong Thanh Phi, et al., 2018. Features of the Cenozoic deformation phases on Co To - Thanh Lan islands (Quang Ninh province, Tonkin gulf, Vietnam). Pacific Geology, 37(2), 87-101.