Progress in the HDR/HWR projects at Tohoku University, Japan

Kazuo Hayashi, Hiroaki Niitsuma

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This paper presents an outline of the series of HDR/HWR projects conducted by Tohoku University since 1983, starting with the Γ-project, which was followed by the HWR, Fractal and MTC projects. The final goal of these projects is to establish/develop the design methodology for engineered geothermal reservoirs. A brief review of each project is also presented, with empahsis upon the progress of the main research topics, such as monitoring of reservoirs by active/passive acoustic techniques, rock mass properties, in situ stress, modeling and simulation and water/rock chemical interaction.

Original languageEnglish
Pages (from-to)647-653
Number of pages7
Issue number4-5
Publication statusPublished - 1999 Aug 1


  • HDR
  • HWR
  • Hot dry rock
  • Japan
  • Reservoir

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Geotechnical Engineering and Engineering Geology
  • Geology


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