| Origin and Distribution of Hydrogen Sulfide in Oil-Bearing Basins, China |
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| 作者姓名： | ZHU Guangyou ZHANG Shuichang and LIANG Yingbo |
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| 作者单位： | 1 Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation, Beijing 100083, China; 2 State Key Laboratory of Enhanced Oil Recovery (Research Institute of Petroleum Exploration and Development) , Beijing 100083, China |
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| 基金项目： | This research was supported by the National Natural Science Foundation of China (Grant Nos 40602016; 40773032) and the National Basic Research Program of China (contract No. 2007CB209500). |
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| 摘 要： | Abstract: The concentration of hydrogen sulfide gas (H2S) varies greatly in the oil-bearing basins of China, from zero to 90%. At present, oil and gas reservoirs with high H2S concentration have been discovered in three basins, viz. the Bohai Bay Basin, Sichuan Basin and the Tarim Basin, whereas natural gas with low H2S concentration has been found in the Ordos Basin, the Songliao Basin and the Junggar Basin. Studies suggest that in China H2S origin types are very complex. In the carbonate reservoir of the Sichuan Basin, the Ordos Basin and the Tarim Basin, as well as the carbonate-dominated reservoir in the Luojia area of the Jiyang depression in the Bohai Bay Basin, Wumaying areas of the Huanghua depression, and Zhaolanzhuang areas of the Jizhong depression, the H2S is of Thermochemical Sulfate Reduction (TSR) origin. The H2S is of Bacterial Sulphate Reduction (BSR) origin deduced from the waterflooding operation in the Changheng Oilfield (placanticline oil fields) in the Songliao Basin. H2S originates from thermal decomposition of sulfur-bearing crude oil in the heavy oil area in the Junggar Basin and in the Liaohe heavy oil steam pilot area in the western depression of the Bohai Bay Basin. The origin types are most complex, including TSR and thermal decomposition of sulfcompounds among other combinations of causes. Various methods have been tried to identify the origin mechanism and to predict the distribution of H2S. The origin identification methods for H2S mainly comprise sulfur and carbon isotopes, reservoir petrology, particular biomarkers, and petroleum geology integrated technologies; using a combination of these applications can allow the accurate identification of the origins of H2S. The prediction technologies for primary and secondary origin of H2S have been set up separately.
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| 关 键 词： | Key words: H2S TSR BSR distribution origin mechanism oil-bearing basins |
| 收稿时间： | 2008/11/17 0:00:00 |
| 修稿时间： | 2009/5/14 0:00:00 |
Origin and Distribution of Hydrogen Sulfide in Oil-Bearing Basins,China |
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| Authors: | ZHU Guangyou ZHANG Shuichang LIANG Yingbo Research Institute of Petroleum Exploration Development China National Petroleum Corporation Beijing China State Key Laboratory of Enhanced Oil Recovery China |
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| Institution: | ZHU Guangyou1,2,ZHANG Shuichang1,2 and LIANG Yingbo1 1 Research Institute of Petroleum Exploration and Development,China National Petroleum Corporation,Beijing 100083,China 2 State Key Laboratory of Enhanced Oil Recovery (Research Institute of Petroleum Exploration and Development),China |
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| Abstract: | The concentration of hydrogen sulfide gas (H2S) varies greatly in the oil-bearing basins of China, from zero to 90%. At present, oil and gas reservoirs with high H2S concentration have been discovered in three basins, viz. the Bohai Bay Basin, Sichuan Basin and the Tarim Basin, whereas natural gas with low H2S concentration has been found in the Ordos Basin, the Songliao Basin and the Junggar Basin. Studies suggest that in China H2S origin types are very complex. In the carbonate reservoir of the Sichuan Ba... |
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| Keywords: | H_2S TSR BSR distribution origin mechanism off-bearing basins |
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