Fluid flow in fractally rough synthetic fractures

P. W.J. Glover, K. Matsuki, R. Hikima, Kazuo Hayashi

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

Fluid flow through fractures in rocks depends upon the roughness of the fracture surfaces. In this work the height of both surfaces of a fracture in a core from the Higashi Hachimantai geothermal test field in northern Japan have been measured and analyzed to determine the monofractal behavior of the surfaces and resulting aperture, and the extent of surface matching. We have used these parameters to create synthetic fractures that are extremely good imitations of the measured fracture by using a new technique for controlling surface mismatching. These numerically synthesized fractures have been used in flow modeling by solving Reynolds equation in the three dimensions, and for calculating the transmissivity of the field fracture. The modeled transmissivity showed good agreement with the fracture transmissivity obtained from field pressure tests, and indicates that such an approach is able to estimate larger scale flow through real sub-surface fractures.

Original languageEnglish
Article number97GL01670
Pages (from-to)1803-1806
Number of pages4
JournalGeophysical Research Letters
Volume24
Issue number14
DOIs
Publication statusPublished - 1997 Jan 1

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

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    Glover, P. W. J., Matsuki, K., Hikima, R., & Hayashi, K. (1997). Fluid flow in fractally rough synthetic fractures. Geophysical Research Letters, 24(14), 1803-1806. [97GL01670]. https://doi.org/10.1029/97GL01670