Numerical analysis of hydrate exploitation performances of depressurization combined with thermal fluid injection in marine hydrate reservoir with impermeable boundary
文献类型：期刊论文
| 作者 | Pan, Dongbin2; Ma, Xiaolong1; Chen, Chen3; Zhong, Xiuping3 |
| 刊名 | GAS SCIENCE AND ENGINEERING
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 110期号:-页码:- |
| ISSN号 | 2949-9097 |
| 关键词 | Natural gas hydrate Impermeable boundaries Numerical simulation Depressurization combined thermal injection Exploitation performance |
| 英文摘要 | The combination of depressurization and thermal fluid injection (D + T-i) is a very promising method to realize the efficient development of marine natural gas hydrate (NGH). However, the performance of D + T-i for hydrate production in the reservoir with impermeable boundaries has received little attention. In this work, the hydrate exploitation performances of D + T-i in NGH reservoir with impermeable overlying layer or impermeable underlying layer (O-imp + U-p, O-p + U-imp, O-imp + U-imp) were numerically investigated. The reservoir with permeable overlying layer and underlying layer (O-p + U-p) was used for comparison. Moreover, the effect of thermal fluid injection temperature (T-i) and injection pressure (P-i) on hydrate decomposition and gas production behaviors in the reservoir with O-imp + U-imp or O-p + U-p were studied in detail. The results indicate that the hydrate decomposition potential of the reservoir with O-p + U-p, O-imp + U-p or O-p + U-imp is similar, which is significantly lower than that of the reservoir with O-imp + U-imp. The presence of impermeable layer in reservoir can enhance gas production and reduce water production, especially when both overlying and underlying layers are all impermeable. The gas to water ratio and energy ratio of the reservoir with O-imp + U-imp are 5.0-7.4 times and 5.5-8.6 times that of the other three reservoirs, respectively. On the other hand, the improvement of Pi increase on hydrate decomposition and gas production is far superior to the improvement caused by T-i rise. Moreover, the increase of Pi and Ti has a more significant improvement on gas production in the reservoir with O-imp + U-imp than that in the reservoir with Op + Up. The maximum improvement of gas production in the reservoir with O-imp + U-imp is 69.6%. These results can provide theoretical support for the exploitation of marine NGH by D + T-i. |
| 学科主题 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001010570300001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35055]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 2.College of Resources and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China 3.College of Construction Engineering, Jilin University, Changchun 130000, China |
| 推荐引用方式 GB/T 7714 | Pan, Dongbin,Ma, Xiaolong,Chen, Chen,et al. Numerical analysis of hydrate exploitation performances of depressurization combined with thermal fluid injection in marine hydrate reservoir with impermeable boundary[J]. GAS SCIENCE AND ENGINEERING,2023,110(-):-. |
| APA | Pan, Dongbin,Ma, Xiaolong,Chen, Chen,&Zhong, Xiuping.(2023).Numerical analysis of hydrate exploitation performances of depressurization combined with thermal fluid injection in marine hydrate reservoir with impermeable boundary.GAS SCIENCE AND ENGINEERING,110(-),-. |
| MLA | Pan, Dongbin,et al."Numerical analysis of hydrate exploitation performances of depressurization combined with thermal fluid injection in marine hydrate reservoir with impermeable boundary".GAS SCIENCE AND ENGINEERING 110.-(2023):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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