Evaluation criteria, major types, characteristics and resource prospects of tight oil in China
Abstract: Tight oil refers to a petroleum play that occurs in a free or adsorbed state in source rocks or tight reservoir rocks (e.g., sandstone and carbonate rock) interbedded with or close to source rocks. Tight oil has generally not experienced large-scale, long-distance migration. According to s...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2016-09-01
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| Series: | Petroleum Research |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2096249517300261 |
| _version_ | 1818621518977957888 |
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| author | Chengzao Jia Caineng Zou Jianzhong Li Denghua Li Min Zheng |
| author_facet | Chengzao Jia Caineng Zou Jianzhong Li Denghua Li Min Zheng |
| author_sort | Chengzao Jia |
| collection | DOAJ |
| description | Abstract: Tight oil refers to a petroleum play that occurs in a free or adsorbed state in source rocks or tight reservoir rocks (e.g., sandstone and carbonate rock) interbedded with or close to source rocks. Tight oil has generally not experienced large-scale, long-distance migration. According to such a definition and its characteristics, 10 key indices are proposed for tight oil resource evaluation in China. Tight oil reservoirs are divided into three groups in terms of porosity and permeability. Tight oil can be classified into three types according to the contact relationship between the tight oil reservoirs and source rocks, i.e., tight lacustrine carbonate oil, tight deep-lake gravity flow sandstones oil, and tight deep-lake deltaic sandstones oil. In China, tight oil resources are widely distributed and significant exploration discoveries have been achieved in the sixth member and seventh member of the Triassic Yanchang Formation in the Ordos Basin, the Permian Lucaogou Formation in the Junggar Basin, the Middle-Lower Jurassic strata of the Sichuan Basin, and the Cretaceous Qingshankou and Quantou Formations in the Songliao Basin. The total geological resources of tight oil in China assessed by using the “analog” method are estimated to be (10.67−11.15) ×109 tones. Taking into account of the future prospects of petroleum development, tight oil may become a realistic alternative to the conventional oil resources in China. Key words: tight oil, evaluation criteria, classification, reservoir characteristics, resource potential |
| first_indexed | 2024-12-16T18:10:33Z |
| format | Article |
| id | doaj.art-03dbdb55659b4036b45d7e4b4923b1f7 |
| institution | Directory Open Access Journal |
| issn | 2096-2495 |
| language | English |
| last_indexed | 2024-12-16T18:10:33Z |
| publishDate | 2016-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Petroleum Research |
| spelling | doaj.art-03dbdb55659b4036b45d7e4b4923b1f72022-12-21T22:21:48ZengKeAi Communications Co., Ltd.Petroleum Research2096-24952016-09-011119Evaluation criteria, major types, characteristics and resource prospects of tight oil in ChinaChengzao Jia0Caineng Zou1Jianzhong Li2Denghua Li3Min Zheng4China National Petroleum Corporation, Beijing 100724, China; Corresponding author.Research Institute of Petroleum Exploration and Development, Beijing 100083, ChinaResearch Institute of Petroleum Exploration and Development, Beijing 100083, ChinaResearch Institute of Petroleum Exploration and Development, Beijing 100083, ChinaResearch Institute of Petroleum Exploration and Development, Beijing 100083, ChinaAbstract: Tight oil refers to a petroleum play that occurs in a free or adsorbed state in source rocks or tight reservoir rocks (e.g., sandstone and carbonate rock) interbedded with or close to source rocks. Tight oil has generally not experienced large-scale, long-distance migration. According to such a definition and its characteristics, 10 key indices are proposed for tight oil resource evaluation in China. Tight oil reservoirs are divided into three groups in terms of porosity and permeability. Tight oil can be classified into three types according to the contact relationship between the tight oil reservoirs and source rocks, i.e., tight lacustrine carbonate oil, tight deep-lake gravity flow sandstones oil, and tight deep-lake deltaic sandstones oil. In China, tight oil resources are widely distributed and significant exploration discoveries have been achieved in the sixth member and seventh member of the Triassic Yanchang Formation in the Ordos Basin, the Permian Lucaogou Formation in the Junggar Basin, the Middle-Lower Jurassic strata of the Sichuan Basin, and the Cretaceous Qingshankou and Quantou Formations in the Songliao Basin. The total geological resources of tight oil in China assessed by using the “analog” method are estimated to be (10.67−11.15) ×109 tones. Taking into account of the future prospects of petroleum development, tight oil may become a realistic alternative to the conventional oil resources in China. Key words: tight oil, evaluation criteria, classification, reservoir characteristics, resource potentialhttp://www.sciencedirect.com/science/article/pii/S2096249517300261 |
| spellingShingle | Chengzao Jia Caineng Zou Jianzhong Li Denghua Li Min Zheng Evaluation criteria, major types, characteristics and resource prospects of tight oil in China Petroleum Research |
| title | Evaluation criteria, major types, characteristics and resource prospects of tight oil in China |
| title_full | Evaluation criteria, major types, characteristics and resource prospects of tight oil in China |
| title_fullStr | Evaluation criteria, major types, characteristics and resource prospects of tight oil in China |
| title_full_unstemmed | Evaluation criteria, major types, characteristics and resource prospects of tight oil in China |
| title_short | Evaluation criteria, major types, characteristics and resource prospects of tight oil in China |
| title_sort | evaluation criteria major types characteristics and resource prospects of tight oil in china |
| url | http://www.sciencedirect.com/science/article/pii/S2096249517300261 |
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