Shale Gas Content Calculation of the Triassic Yanchang Formation in the Southeastern Ordos Basin, China
文献类型：期刊论文
| 作者 | Su, Jiao1; Shen, Yingchu2,3; Hao, Jin4,5; Liu, Bo3 |
| 刊名 | ENERGIES
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 10期号:12 |
| 关键词 | Shale Gas Lost Shale Gas Content Oil Dissolved Shale Gas Content Improved Usbm Method Ordos Basin |
| ISSN号 | 1996-1073 |
| DOI | 10.3390/en10121949 |
| 文献子类 | Article |
| 英文摘要 | Shale gas content is the key parameter for shale gas potential evaluation and favorable area prediction. Therefore, it is very important to determine shale gas content accurately. Generally, we use the US Bureau of Mines (USBM) method for coal reservoirs to calculate the gas content of shale reservoirs. However, shale reservoirs are different from coal reservoirs in depth, pressure, core collection, etc. This method would inevitably cause problems. In order to make the USBM method more suitable for shale reservoirs, an improved USBM method is put forward on the basis of systematic analysis of core pressure history and temperature history during shale gas degassing. The improved USBM method modifies the calculation method of the gas loss time, and determines the temperature balance time of water heating. In addition, we give the calculation method of adsorption gas content and free gas content, especially the new method of calculating the oil dissolved gas content and water dissolved gas content that are easily neglected. We used the direct method (USBM and the improved USBM) and the indirect method (including the calculation of adsorption gas, free gas and the dissolved gas method) to calculate the shale gas content of 16 shale samples of the Triassic Yanchang Formation in the Southeastern Ordos Basin, China. The results of the improved USBM method show that the total shale gas content is high, with an average of 3.97 m(3)/t, and the lost shale gas content is the largest proportion with an average of 62%. The total shale gas content calculated by the improved USBM method is greater than that of the USBM method. The results of the indirect method show that the total shale gas content is large, with an average of 4.11 m(3)/t, and the adsorption shale gas content is the largest proportion with an average of 71%. The oil dissolved shale gas content which should be paid attention to accounts for about 7.8%. The discrepancy between the direct method and indirect method is reduced by using the improved USBM method, and the improved USBM method could be more practical and accurate than the USBM method. |
| WOS关键词 | MISSISSIPPIAN BARNETT SHALE ; NORTH-CENTRAL TEXAS ; FORT-WORTH BASIN ; SYSTEMS |
| WOS研究方向 | Energy & Fuels |
| 语种 | 英语 |
| WOS记录号 | WOS:000423156900020 |
| 出版者 | MDPI AG |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/82635]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Liu, Bo |
| 作者单位 | 1.China Univ Geosci, Sch Earth Sci & Resources, Beijing 100083, Peoples R China 2.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 3.Peking Univ, Oil & Gas Res Ctr, Beijing 100871, Peoples R China 4.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China 5.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Jiao,Shen, Yingchu,Hao, Jin,et al. Shale Gas Content Calculation of the Triassic Yanchang Formation in the Southeastern Ordos Basin, China[J]. ENERGIES,2017,10(12). |
| APA | Su, Jiao,Shen, Yingchu,Hao, Jin,&Liu, Bo.(2017).Shale Gas Content Calculation of the Triassic Yanchang Formation in the Southeastern Ordos Basin, China.ENERGIES,10(12). |
| MLA | Su, Jiao,et al."Shale Gas Content Calculation of the Triassic Yanchang Formation in the Southeastern Ordos Basin, China".ENERGIES 10.12(2017). |
入库方式： OAI收割
来源：地质与地球物理研究所
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