臺灣能源期刊發行
- 創刊日期：
102年11月30日
- 發行所：
經濟部能源署
- 發行人：
游振偉
- 地址：
台北市復興北路2號13樓
- 電話：
02-2772-1370
- 執行單位：
財團法人工業技術研究院
- 地址：
新竹縣竹東鎮中興路四段195號26館
- 服務專線：
03-5916006
- 服務信箱：
- 總編輯：
王漢英胡均立
- 顧問：
王運銘童遷祥楊日昌
- 執行主編：
劉子衙陳志臣
- 編輯委員：
方良吉王錫福李堅明李叢禎林師模馬鴻文陳介力陳希立廖芳玲廖肇寧劉文獻蕭志同顧洋(依筆畫順序排列)
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臺灣能源期刊論文全文
臺灣能源期刊第1卷第3期內容
出刊日期：June, 2014
- 題目
- 增強型地熱系統發展分析與探討
- Title
- The Analysis and Discussion of Enhanced Geothermal Systems Development
- 作者
- 李伯亨、柳志錫、劉力維、謝瑞青、郭泰融、王俊堯
- Authors
- Bo-Heng Lee, Chih-Hsi Liu, Li-Wei Liu, Jui-Ching Hsieh, Tai-Rong Guo, Chun-Jao Wang
- 摘要
- 本文藉由全球18個重要增強型地熱發電系統(Enhanced Geothermal System, EGS)場址分析，吸取早期先導性EGS場址的重要經驗，分析近期的歐盟、澳洲、美國等國家的EGS場址成果，獲得可歸納出場址特性為開發成功的關鍵，其中張裂型(Trans-tensional)的地塹環境較容易製造成功的人工儲集層。分析歐盟的EGS研發項目，其中高溫井測器具研發及地熱儲集層工程誘發地震之規範，是可為臺灣借鏡之項目。美國以開發難易度區分EGS，傳統地熱區內的In Field EGS開發較容易，近傳統地熱區的Near Field EGS開發為中性，典型的Greenfield EGS潛能雖大但開發最難。美國從2007至2013年共投入2.2億美元的EGS研發經費，研發技術項目包含分析工具、新穎探勘、人工儲集層製造、儲集層維護等四項主要EGS技術，其發展目標為2020年達成5個EGS電廠建置，2030年EGS成本降至0.06美元/kWh，2050年達成全美100 GWe地熱發電裝置容量及EGS技術輸出等。臺灣目前地熱井的產能不佳，地熱發電之成本較高，提高生產井的產能為關鍵課題，目前國外以提高回注井數量來進行In Field EGS以提升產能。依臺灣地熱特性，建議建立臺灣地熱探勘資料庫，發展或引進人工裂隙製造與增強技術，增加地熱井產能，降低投資成本；搭配研發地熱儲集層維護技術，降低年維護成本；最後以傳統地熱產業推廣帶動EGS開發，逐步擴大地熱發電。
- 關鍵字
- 增強型地熱系統、傳統地熱系統、新穎探勘技術、人工儲集層製造技術
- Abatract
- The purpose of this study is to review 18 significant enhanced geothermal system (EGS) sites and its applying technologies in European Union, Australia, and USA etc. From the results of earlier cases, site characterization such as transtensional type (i.e. graben) is a key factor to achieve success of EGS development. This study has also introduced enhanced geothermal innovative network for Europe (ENGINE), especially in high temperature instruments for supercritical geothermal reservoir characterization and exploitation (HITI), and geothermal engineering integrating mitigation of induced seismicity in reservoirs (GEISER). USA classified easy, mild, and difficult for its development application on traditional-hydrothermal field, near traditional-hydrothermal field, and Greenfield, respectively. Greenfield EGS, however, has huge potential can be utilized, the technologies still remain to develop. In view of immature technologies for EGS, USA has fund total 0.22 billion USD during 2007-2013 to develop technology of economic analysis models, innovative exploration, reservoir stimulation, and sustainability reservoir to commercialize EGS. The goals of EGS in USA are construction and operation of 5 EGS power plant before 2020, cost reduction to 0.06 USD/kWh before 2030, and installation of 100 GWe capacity for geothermal power generation, furthermore, technical authorization to foreign countries. The crucial issue in Taiwan’s geothermal development is to enhance poor productivity of geothermal production well. From foreign experience, to add reinjection well in traditional-hydrothermal field EGS to enhance productivity should be feasible approach. Therefore, the study suggests that Taiwan should establish a geothermal exploration database. Meanwhile, to develop reservoir stimulation and reservoir maintaining technologies to enhance geothermal production productivity will lead to cost reduction. Furthermore, by promoting traditional-hydrothermal geothermal power plant to drive EGS development that will gradually expand Taiwan’s geothermal industry.
- Keywords
- Enhanced Geothermal System, Traditional-hydrothermal System, Innovative Exploration Technology, Reservoir Stimulation Technology