Opening of a fault and resulting slip due to injection of fluid for the extraction of geothermal heat.

K. Hayashi, H. Abe

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

The behavior of a fault with a fluid-filled region is studied for the extraction of heat from hot, dry rock masses. A fault is viewed as a prefractured plane in the earth's crust and is modeled by an interface across which two elastic bodies contact with each other, where frictional forces against the relative movement between two surfaces of the interface are taken into account. Once fluid is injected between the two surfaces, the fault will be opened up over a region where the pressure acting on the fault plane before the injection is locally smaller than that on the neighboring regions. The size of the fluid-filled region is compared with that of a crack opened by a hydraulic pressure in a homogeneous medium to show that the fluid-filled region could be used as a reservoir for the extraction of geothermal heat.-Authors

Original languageEnglish
Pages (from-to)1049-1054
Number of pages6
JournalJournal of Geophysical Research
Volume87
Issue numberB2
DOIs
Publication statusPublished - 1982 Jan 1

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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