Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China
In order to investigate the potential of the Lower Cambrian shale gas in South China, a study on the accumulation condition of shale gas from the Niutitang Formation was conducted. In addition, the favorable accumulation area of shale gas in northern Guizhou was evaluated. The study and evaluation w...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2018-02-01
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| Series: | Journal of Natural Gas Geoscience |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2468256X18300075 |
| _version_ | 1797720688648257536 |
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| author | Xianqing Li Jizhen Zhang Yuan Wang Man Guo Zhe Wang Feiyu Wang |
| author_facet | Xianqing Li Jizhen Zhang Yuan Wang Man Guo Zhe Wang Feiyu Wang |
| author_sort | Xianqing Li |
| collection | DOAJ |
| description | In order to investigate the potential of the Lower Cambrian shale gas in South China, a study on the accumulation condition of shale gas from the Niutitang Formation was conducted. In addition, the favorable accumulation area of shale gas in northern Guizhou was evaluated. The study and evaluation were both analyzed according to the geochemical analysis data of the core and outcrop samples in this paper. The result shows that the Niutitang Formation shale in northern Guizhou is formed in the shallow sea sedimentary environment, which features moderate buried depth (<3000 m), high organic-rich shale thickness (30–110 m), high organic abundance (average TOC>3.0%), type I kerogens, over-mature thermal evolution level (Ro>2.0%), low porosity, abundant micro- and nano-meter pores and fractures, rich brittle mineral (average content >40%), and relatively high gas content (average 1.5 m3/t). The aforementioned feature indicates that the Niutitang Formation in northern Guizhou has good accumulation condition for shale gas. Through the studies above, it is proposed that the southeastern Shiqian—Yuqing—Shibing area is the most favorable area for shale gas accumulation in northern Guizhou. Keywords: Shale gas, Accumulation condition, Favorable area evaluation, Niutitang Formation, Organic-rich shale, Northern Guizhou |
| first_indexed | 2024-03-12T09:23:05Z |
| format | Article |
| id | doaj.art-475cbabeb1f34a7a8362663814112fe9 |
| institution | Directory Open Access Journal |
| issn | 2468-256X |
| language | English |
| last_indexed | 2024-03-12T09:23:05Z |
| publishDate | 2018-02-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Natural Gas Geoscience |
| spelling | doaj.art-475cbabeb1f34a7a8362663814112fe92023-09-02T14:22:25ZengKeAi Communications Co., Ltd.Journal of Natural Gas Geoscience2468-256X2018-02-0131110Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South ChinaXianqing Li0Jizhen Zhang1Yuan Wang2Man Guo3Zhe Wang4Feiyu Wang5State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, China; Corresponding author. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China.State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, ChinaState Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, ChinaState Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, ChinaState Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology (Beijing), Beijing, 100083, China; College of Geosciences and Surveying Engineering, China University of Mining and Technology (Beijing), Beijing, 100083, ChinaState Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum (Beijing), Beijing, 102249, China; College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249, ChinaIn order to investigate the potential of the Lower Cambrian shale gas in South China, a study on the accumulation condition of shale gas from the Niutitang Formation was conducted. In addition, the favorable accumulation area of shale gas in northern Guizhou was evaluated. The study and evaluation were both analyzed according to the geochemical analysis data of the core and outcrop samples in this paper. The result shows that the Niutitang Formation shale in northern Guizhou is formed in the shallow sea sedimentary environment, which features moderate buried depth (<3000 m), high organic-rich shale thickness (30–110 m), high organic abundance (average TOC>3.0%), type I kerogens, over-mature thermal evolution level (Ro>2.0%), low porosity, abundant micro- and nano-meter pores and fractures, rich brittle mineral (average content >40%), and relatively high gas content (average 1.5 m3/t). The aforementioned feature indicates that the Niutitang Formation in northern Guizhou has good accumulation condition for shale gas. Through the studies above, it is proposed that the southeastern Shiqian—Yuqing—Shibing area is the most favorable area for shale gas accumulation in northern Guizhou. Keywords: Shale gas, Accumulation condition, Favorable area evaluation, Niutitang Formation, Organic-rich shale, Northern Guizhouhttp://www.sciencedirect.com/science/article/pii/S2468256X18300075 |
| spellingShingle | Xianqing Li Jizhen Zhang Yuan Wang Man Guo Zhe Wang Feiyu Wang Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China Journal of Natural Gas Geoscience |
| title | Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China |
| title_full | Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China |
| title_fullStr | Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China |
| title_full_unstemmed | Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China |
| title_short | Accumulation condition and favorable area evaluation of shale gas from the Niutitang Formation in northern Guizhou, South China |
| title_sort | accumulation condition and favorable area evaluation of shale gas from the niutitang formation in northern guizhou south china |
| url | http://www.sciencedirect.com/science/article/pii/S2468256X18300075 |
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