터널과지하공간 (Tunnel and Underground Space)

  • 제23권6호
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  • Pages.561-571
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  • 2013
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  • 1225-1275(pISSN)
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  • 2287-1748(eISSN)
한국암반공학회 (Korean Society for Rock Mechanics and Rock Engineering)
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EGS 지열발전 연구사례: The Soultz Project

Enhanced Geothermal System Case Study: The Soultz Project

  • 이태종 (한국지질자원연구원 지열자원연구팀) ;
  • 송윤호 (한국지질자원연구원 지열자원연구팀)
  • 투고 : 2013.11.08
  • 심사 : 2013.12.09
  • 발행 : 2013.12.31
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초록

1984년 프랑스 Soultz-sous-For$\hat{e}$ts 지역에서 시작된 Soultz 프로젝트는 2007년 11월에 1.5 MW급 Organic Rankine Cycle (ORC) binary 발전 설비가 완성되기까지 20여년에 걸쳐 인공 지열저류층 생성기술(EGS; Enhaced Geothermal System) 개발을 위한 다양한 실험과 연구가 이루어져, 그 축적된 기술은 호주의 Cooper basin, 독일의 Landau, Insheim 등의 지열발전 프로젝트에 활용되고 있다. 우리나라의 포항에서도 현재 지열발전 프로젝트가 진행되고 있는 시점에서 이 보고에서는 지열저류층 생성 측면에서 Soultz에서의 경험을 살펴보았다. 포항의 경우, 지질학적인 측면에서 Soultz의 환경과 유사한 부분이 많으며 따라서, Soultz에서의 경험과 know-how를 잘 연구하고 개선하여 적용한다면 불필요한 시행착오나 시간적, 경제적인 낭비요소를 배제할 수 있을 것이며, 이 보고가 그에 보탬이 되기를 기대한다.

Various experiences on enhanced geothermal system (EGS) has been accumulated from the Soultz project through various scientific experiments and research activities for more than 20 years since it started in the year of 1984 until the 1.5 MW Organic Rankine Cycle (ORC) binary power plant has been built up in Soultz-sous-$\hat{e}$ area, France. They have been applied to Cooper basin in Australia, Landau and Insheim in Germany and so forth. This report summaries the experiences from Soultz in the aspect of artificial reservoir creation, expecting to be helpful for reducing any trial and errors or unnecessary expenses in ongoing Korean EGS project in Pohang area, where the geological features are similar to Soultz area.

키워드

참고문헌

  1. Baria, R., Michelet, S., Baumgärtner, J., Dyer, B., Nicholls, J., Hettkamp, T., and Teza, D., 2005, Creation and mapping of 5000 m deep HDR/HFR reservoir to produce electricity, Proceedings World Geothermal Congress 2005, Antalya, Turkey, 24-29 April 2005.
  2. Calo, M., Dorbath, C., Cornet, F. H., and Cuenot, N., 2011, Large-scale aseismic motion identified through 4-D P-wave tomography, Geophysical Journal International, 186, 1295-1314. https://doi.org/10.1111/j.1365-246X.2011.05108.x
  3. Cautru, J. P., 1986, Geological sections GPK-1 determined from seismic reflection profiles, IMRG document.
  4. Cuenot, N., Charlety, J., Dorbath, L., and Haessler, H., 2006, Faulting mechanisms and stress regime at the European HDR site of Soultz-sous-Forets, France, Geothermics, 35, 561-575. https://doi.org/10.1016/j.geothermics.2006.11.007
  5. Cuenot, N., Dorbath, C., and Dorbath, L., 2008, Analysis of the microseismicity induced by fluid injections at the EGS site of Soultz-sous-Forêts (Alsace, France): Implications for the characterization of the geothermal reservoir properties, Pure Appl. Geophys., 165, 797-828. https://doi.org/10.1007/s00024-008-0335-7
  6. Cornet, F. H., and Jiamin, Y., 1995, Analysis of induced seismicity for stress field determination and pore pressure mapping, Pageoph, 145, 677-700. https://doi.org/10.1007/BF00879595
  7. Dezayes, Ch., Gentier, S., and Genter, A., 2005, Deep geothermal energy in western Europe: the Soultz project, BRGM/RP-54227-FR, 48p.
  8. Dorbath, L., 2006, Microseismicity developments during hydraulic stimulation at Soultz-sous-Forets, ENGINE Launching Conference, Feb. 12-15 2006, BRGM, Orleans, France.
  9. Dorbath, L., and Charlety, J., 2007, What can we learn from large induced earthquakes at Soultz-sous-Forets, Soultz Geothermal Conference 2007.
  10. Dorbath, L., Cuenot, N., Genter, A., and Frogneux, M., 2009, Seismic response of the fractured and faulted granite of Soultz-sous-Forets (France) to 5 km deep massive water injections, Geophys. J. Int., 177, 635-675.
  11. Nami, P., Schellschmidt, R., Schindler, M., and Tischner, T., 2008, Chemical stimulation operations for reservoir development of the deep crystalline HDR/EGS system at Soultz-sous-Forets (France), Proceeding, Thirty-Third Workshop on Geothermal Reservoir Engineering, Stanford Univ., Jan. 28-30, SGP-TR-185.
  12. Place, J., Diraison, M., Thinon, I., Dezayes, C., Schaming, M., Garzic, E. L. E., and Geraud, Y., 2008, Recent results from seismic methods applied to the Soultz-sous-Forets area: Toward new approaches?, Soultz Conference 2008.
  13. Schill, E., and Geiermann, J., 2008, Magnetotellurics: An exploration tool for geothermal reservoirs in the upper Rhine valley, Soultz Conference 2008.
  14. Schill, E., Baillieux, P., Klingler, P., and Abdelfettah, Y., 2011, Interpretation of gravity data for EGS in the upper Rhine valley and adjacent areas, Soultz geothermal conference, 2011.

피인용 문헌

  1. Numerical Heat-conduction Modeling to Understand the Genesis of the Observed Geothermal Gradient in Ulleung Island using Experimentally Determined Thermal Properties of the Rocks vol.26, pp.4, 2016, https://doi.org/10.7474/TUS.2016.26.4.266