A novel system of geothermal enhanced coalbed methane (Gth-ECBM) production: (I) heat extraction modelling
文献类型：期刊论文
| 作者 | Huang, Fengjun; Li, Hong; Ji, Kun; Ma, Qianqian; Gou, Shuaiwu |
| 刊名 | GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES
 |
| 出版日期 | 2022-10-01 |
| 卷号 | 8期号:5 |
| 关键词 | Dry rock heat Medium-enthalpy geothermal energy Coalbed methane recovery Thermal stimulation Numerical simulation |
| ISSN号 | 2363-8419 |
| 英文摘要 | Coalbed methane as one of unconventional natural gases has many advantages in its exploitation and utilization. However, due to the constraints of reservoir characteristics, corresponding stimulation measures must be taken to efficiently recover coalbed methane. Among them, thermal injection stimulation technology is highly expected by domestic and foreign researchers. However, the traditional thermal injection stimulation technology had a series of problems, such as poor stimulation effect and waste of resources. In order to break through the disadvantages of the traditional thermal injection stimulation technology, a new method to use medium enthalpy dry rock geothermal stimulation to increase CBM production-Gth-ECBM system is proposed in this paper. The principle of this system is to take geothermal energy as heat supply and coalbed methane as injection source, which avoids the existing problems in traditional heat injection stimulation technology and achieves better stimulation effect. The construction and operation process of the system is introduced in detail in this paper, its advantages are evaluated, and the heat extraction part of the system is studied by numerical simulation. The simulation results show that the working fluid flows through the cold water injection well into the heat recovery well. In this process, the temperatures in the surrounding rocks of injection well and recovery well both gradually decrease. The fluid temperature in either well began to rise rapidly in the beginning and then decreased along with time going by. After running the modelling, the water temperature at the outlet of the hot water collection well can reach 106 degrees C, it tells that after 20 years of production, above 80 degrees C will be remained there and this state can be used as the newly initial condition of enhancedcoalbed methane recovery in the next step. It is preliminarily demonstrated that the geothermal heat extraction part of this system is a feasible engineering. |
| 学科主题 | Energy & Fuels ; Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000850560900001 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34886]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Dalian University of Technology; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Huang, Fengjun,Li, Hong,Ji, Kun,et al. A novel system of geothermal enhanced coalbed methane (Gth-ECBM) production: (I) heat extraction modelling[J]. GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES,2022,8(5). |
| APA | Huang, Fengjun,Li, Hong,Ji, Kun,Ma, Qianqian,&Gou, Shuaiwu.(2022).A novel system of geothermal enhanced coalbed methane (Gth-ECBM) production: (I) heat extraction modelling.GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES,8(5). |
| MLA | Huang, Fengjun,et al."A novel system of geothermal enhanced coalbed methane (Gth-ECBM) production: (I) heat extraction modelling".GEOMECHANICS AND GEOPHYSICS FOR GEO-ENERGY AND GEO-RESOURCES 8.5(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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