Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China
The Ordos Basin is the largest natural gas producing region in China. Recent discoveries of two helium-rich natural gas fields (Dongsheng and Qingyang) shows promising helium resource potential. Sulige Gas Field, the largest natural gas field in China, was analyzed to evaluate its helium resource po...
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KeAi Communications Co., Ltd.
2025-06-01
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| Series: | Journal of Natural Gas Geoscience |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468256X2500029X |
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| author | Liyong Fan Jianshe Wei Aiping Hu Yuhong Li Linze Xie Tao Jiang Yuxuan Zhang Shangwei Ma |
| author_facet | Liyong Fan Jianshe Wei Aiping Hu Yuhong Li Linze Xie Tao Jiang Yuxuan Zhang Shangwei Ma |
| author_sort | Liyong Fan |
| collection | DOAJ |
| description | The Ordos Basin is the largest natural gas producing region in China. Recent discoveries of two helium-rich natural gas fields (Dongsheng and Qingyang) shows promising helium resource potential. Sulige Gas Field, the largest natural gas field in China, was analyzed to evaluate its helium resource potential. Comprehensive geochemical analyses were conducted, examining natural gas components, alkane gases, carbon isotopic signatures of carbon dioxide, helium concentrations, and helium isotopic ratios within the gas field. Preliminarily studies identified the geochemical characteristics of natural gas and helium in the Paleozoic strata of Sulige Gas Field, and explored the main controlling factors of helium reservoir formation. The results show that the composition of natural gas in the Upper Paleozoic is obviously different. Specifically, Upper Paleozoic natural gas exhibited typical wet gas at the mature stage and dry gas at the over-mature stage, while Lower Paleozoic natural gas is mainly dry gas with partial contribution of wet gas. The Upper Paleozoic is dominated by thermogenic natural gas, predominantly middle-late humic gas (coal-derived) originating from Carboniferous and Permian coal measure source rocks. In contrast, the Lower Paleozoic is dominated by late sapropelic dry gas and oil cracking gas. The helium concentrations in Paleozoic natural gas is higher than in conventional natural gas (0.03%), which belongs to middle helium gas, and the Upper Paleozoic is exceeding those of the Lower Paleozoic. The helium accumulation in the Sulige Gas Field is influenced by the ancient and modern structural location, the high helium generation intensity and relatively low hydrocarbon generation potential of helium source rocks (such as U–Th-rich basement granite and granite gneiss), the development of basement faults, and the complex gas–water relationship, which is favorable for the helium to dissolve out of the water and enter into the natural gas reservoirs. |
| format | Article |
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| institution | Kabale University |
| issn | 2468-256X |
| language | English |
| publishDate | 2025-06-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Journal of Natural Gas Geoscience |
| spelling | doaj-art-014f96210da74cc1aca9c0f1b8dc672d2025-08-20T03:30:13ZengKeAi Communications Co., Ltd.Journal of Natural Gas Geoscience2468-256X2025-06-0110314515710.1016/j.jnggs.2025.05.004Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, ChinaLiyong Fan0Jianshe Wei1Aiping Hu2Yuhong Li3Linze Xie4Tao Jiang5Yuxuan Zhang6Shangwei Ma7Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an, 710018, China; National Engineering Laboratory of Low-permeability Oil & Gas Exploration and Development, Xi'an, 710018, China; Corresponding author. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an, 710018, China.Xi'an Center of China Geological Survey / Northwest China Center of Geoscience Innovation, Xi'an, 710119, China; Research Center for Helium, CGS, Xi'an, 710119, China; Corresponding author. Xi'an Center of China Geological Survey / Northwest China Center of Geoscience Innovation, Xi'an, 710119, China.Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an, 710018, ChinaXi'an Center of China Geological Survey / Northwest China Center of Geoscience Innovation, Xi'an, 710119, China; Research Center for Helium, CGS, Xi'an, 710119, ChinaResearch Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an, 710018, China; National Engineering Laboratory of Low-permeability Oil & Gas Exploration and Development, Xi'an, 710018, ChinaChinese Academy of Geological Sciences, Beijing, 100037, ChinaXi'an Center of China Geological Survey / Northwest China Center of Geoscience Innovation, Xi'an, 710119, China; Research Center for Helium, CGS, Xi'an, 710119, ChinaXi'an Center of China Geological Survey / Northwest China Center of Geoscience Innovation, Xi'an, 710119, China; Research Center for Helium, CGS, Xi'an, 710119, ChinaThe Ordos Basin is the largest natural gas producing region in China. Recent discoveries of two helium-rich natural gas fields (Dongsheng and Qingyang) shows promising helium resource potential. Sulige Gas Field, the largest natural gas field in China, was analyzed to evaluate its helium resource potential. Comprehensive geochemical analyses were conducted, examining natural gas components, alkane gases, carbon isotopic signatures of carbon dioxide, helium concentrations, and helium isotopic ratios within the gas field. Preliminarily studies identified the geochemical characteristics of natural gas and helium in the Paleozoic strata of Sulige Gas Field, and explored the main controlling factors of helium reservoir formation. The results show that the composition of natural gas in the Upper Paleozoic is obviously different. Specifically, Upper Paleozoic natural gas exhibited typical wet gas at the mature stage and dry gas at the over-mature stage, while Lower Paleozoic natural gas is mainly dry gas with partial contribution of wet gas. The Upper Paleozoic is dominated by thermogenic natural gas, predominantly middle-late humic gas (coal-derived) originating from Carboniferous and Permian coal measure source rocks. In contrast, the Lower Paleozoic is dominated by late sapropelic dry gas and oil cracking gas. The helium concentrations in Paleozoic natural gas is higher than in conventional natural gas (0.03%), which belongs to middle helium gas, and the Upper Paleozoic is exceeding those of the Lower Paleozoic. The helium accumulation in the Sulige Gas Field is influenced by the ancient and modern structural location, the high helium generation intensity and relatively low hydrocarbon generation potential of helium source rocks (such as U–Th-rich basement granite and granite gneiss), the development of basement faults, and the complex gas–water relationship, which is favorable for the helium to dissolve out of the water and enter into the natural gas reservoirs.http://www.sciencedirect.com/science/article/pii/S2468256X2500029XPaleozoicOrigin of helium gasMain controlling factors of reservoir formationGeochemical characteristicsSulige gas fieldOrdos Basin |
| spellingShingle | Liyong Fan Jianshe Wei Aiping Hu Yuhong Li Linze Xie Tao Jiang Yuxuan Zhang Shangwei Ma Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China Journal of Natural Gas Geoscience Paleozoic Origin of helium gas Main controlling factors of reservoir formation Geochemical characteristics Sulige gas field Ordos Basin |
| title | Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China |
| title_full | Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China |
| title_fullStr | Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China |
| title_full_unstemmed | Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China |
| title_short | Geochemical characteristics, origin and main controlling factors of helium gas accumulation of helium-bearing natural gas in Sulige Gas Field, Ordos Basin, China |
| title_sort | geochemical characteristics origin and main controlling factors of helium gas accumulation of helium bearing natural gas in sulige gas field ordos basin china |
| topic | Paleozoic Origin of helium gas Main controlling factors of reservoir formation Geochemical characteristics Sulige gas field Ordos Basin |
| url | http://www.sciencedirect.com/science/article/pii/S2468256X2500029X |
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