| Title | The First Enhanced Geothermal System Project in Korea |
|---|---|
| Authors | Tae Jong Lee, Yoonho Song, Woon Sang Yoon, Kwang-Yeom Kim, Jongug Jeon, Ki-Bok Min, Yong-Hee Cho |
| Year | 2011 |
| Conference | Asian Geothermal Symposium |
| Keywords | Enhanced Geothermal System, Doublet system, Geothermal Power Plant, binary GPP, Pohang |
| Abstract | The first proof of concept project for geothermal power generation by enhanced geothermal system (EGS) in Pohang, Korea has been started in Dec. 2010. The project aims to construct a MW scale geothermal power plant (GPP) within 5 km depth. A doublet system (one injection and one production wells) will be made at a first stage for the 5 years of the project period due to the limited budget and the period. The project is divided into two stages; the first stage, the first two years, for geothermal exploration for the site and drilling into 3 km deep to figure out the geology and the temperature over 100 oC, and the second stage, the next three years, will be devoted to complete a doublet system of 5 km depth including deep drilling, hydraulic stimulation, circulation test and eventually to construct a binary GPP of MW scale. The bottom hole temperature at 5 km depth is expected to be about 180 oC based on intensive geothermal exploration during the period 2002-2009 by Korea Institute of Geoscience and Mineral Resources (KIGAM). Assuming the flow rate of 40 kg/sec, the net power generation could be 1.5 MWe for the doublet system. NEXGEO consortium with industry, research institutes and university participation is managing the project. |