Effect of Vertical Permeability Heterogeneity in Stratified Formation on Electricity Generation Performance of Enhanced Geothermal System
文献类型：期刊论文
| 作者 | Zeng, Yuchao2; Sun, Fangdi1; Zhai, Haizhen3 |
| 刊名 | PROCESSES
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 9期号:5页码:16 |
| 关键词 | vertical permeability heterogeneity reservoir permeability enhanced geothermal system electricity generation performance Yangbajing geothermal field |
| DOI | 10.3390/pr9050744 |
| 通讯作者 | Sun, Fangdi(sfd_geo@gzhu.edu.cn) |
| 英文摘要 | Because geologic sedimentation and hydrofracturing processes are not homogeneous, the reservoirs of enhanced geothermal systems (EGSs) are also heterogeneous; this has a significant influence on the electricity generation performance of EGS. Presently, there are a lack of systematic and profound studies on the effect of vertical permeability heterogeneity in stratified formation on the electricity generation performance of EGS. In order to uncover the effect of vertical permeability heterogeneity on electricity generation performance of EGS, in this work we analyzed the influence of vertical permeability heterogeneity on electricity generation performance of EGS through a numerical method based on geological data at the Yangbajing geothermal field. The results indicate that when the average permeability of stratified formations is constant for a homogeneous reservoir, the system attains maximum water production rate, maximum electric power, minimum reservoir impedance and maximum pump power; with the increasing of the vertical permeability heterogeneity, the water production rate gradually decreases, the electric power gradually declines, the reservoir impedance gradually increases and the pump power gradually declines. When the average permeability of stratified formations is constant, with the increasing of the vertical permeability heterogeneity, the injection pressure and energy efficiency only changes very slightly; this indicates that the vertical permeability heterogeneity is not the main factor affecting the system injection pressure and energy efficiency. |
| WOS关键词 | FRACTURED GRANITE RESERVOIR ; 3-DIMENSIONAL TRANSIENT MODEL ; HOT DRY ROCK ; NUMERICAL-SIMULATION ; HEAT EXTRACTION ; HORIZONTAL WELLS ; SONGLIAO BASIN ; COUPLED MODEL ; EGS ; ENERGY |
| 资助项目 | GDAS' Project of Science and Technology Development[2020GDASYL-20200102020] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200102013] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200301003] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200402003] ; GDAS' Project of Science and Technology Development[2020GDASYL-20200302007] ; GDAS' Project of Science and Technology Development[2019GDASYL-0102002] ; Guangdong Foundation for Program of Science and Technology Research[2019B121205006] ; Guangdong Foundation for Program of Science and Technology Research[2019B121201004] ; National Natural Science Foundation of China[NSFC: 41930865] ; Open Foundation of Key Laboratory of Natural Gas Hydrate, CAS[E0290206] ; Northern Guangdong Soil Environment Observation and Research Station ; Guangdong Engineering Center of Non-point Source Pollution Control |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000654477600001 |
| 出版者 | MDPI |
| 资助机构 | GDAS' Project of Science and Technology Development ; Guangdong Foundation for Program of Science and Technology Research ; National Natural Science Foundation of China ; Open Foundation of Key Laboratory of Natural Gas Hydrate, CAS ; Northern Guangdong Soil Environment Observation and Research Station ; Guangdong Engineering Center of Non-point Source Pollution Control |
| 源URL | [http://ir.giec.ac.cn/handle/344007/33289]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Sun, Fangdi |
| 作者单位 | 1.Guangzhou Univ, Sch Geog & Remote Sensing, Guangzhou 510006, Peoples R China 2.Guangdong Acad Sci, Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Integrated Agroenvironm Pollut, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Guangzhou 510650, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Yuchao,Sun, Fangdi,Zhai, Haizhen. Effect of Vertical Permeability Heterogeneity in Stratified Formation on Electricity Generation Performance of Enhanced Geothermal System[J]. PROCESSES,2021,9(5):16. |
| APA | Zeng, Yuchao,Sun, Fangdi,&Zhai, Haizhen.(2021).Effect of Vertical Permeability Heterogeneity in Stratified Formation on Electricity Generation Performance of Enhanced Geothermal System.PROCESSES,9(5),16. |
| MLA | Zeng, Yuchao,et al."Effect of Vertical Permeability Heterogeneity in Stratified Formation on Electricity Generation Performance of Enhanced Geothermal System".PROCESSES 9.5(2021):16. |
入库方式： OAI收割
来源：广州能源研究所
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