Determination of anisotropy of spatial correlation structure in a three-dimensional permeability field accompanied by shallow faults

Shinji Nakaya, Taiyoh Yohmei, Akihisa Koike, Tetsuhiro Hirayama, Toshiaki Yoden, Makoto Nishigaki

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Structural planes, such as fractures, bedding planes, schistosity, and so on, induce heterogeneity of permeability field in geologic bodies. One of the ways to demonstrate the heterogeneity is to geostatistically infer the spatial correlation structure. This paper presents a newly developed geostatistical technique for estimating the three-dimensional heterogeneous permeability field. In the presented method, the plane-directional anisotropy of spatial correlation structure of the three-dimensional permeability field is determined by estimating semivariograms in multiplane directions, using limited in situ measurement data of basement rock permeability. A case study of a dam site shows that the spatial correlation of permeability in the direction parallel to the fault planes is greater than that perpendicular to it. Direction of the largest anisotropy of the spatial correlation of the permeability field is concordant with the strike of the major faults.

Original languageEnglish
Pages (from-to)351-3514
Number of pages3164
JournalWater Resources Research
Volume38
Issue number8
Publication statusPublished - Aug 1 2002

Fingerprint

permeability
Anisotropy
anisotropy
Dams
Rocks
bedding plane
basement rock
fault plane
in situ measurement
Direction compound
dam
rocks
case studies
methodology

Keywords

  • Anisotropy
  • Fault
  • Geostatistics
  • Permeability of rocks
  • Spatial correlation structure

ASJC Scopus subject areas

  • Environmental Science(all)
  • Environmental Chemistry
  • Aquatic Science
  • Water Science and Technology

Cite this

Determination of anisotropy of spatial correlation structure in a three-dimensional permeability field accompanied by shallow faults. / Nakaya, Shinji; Yohmei, Taiyoh; Koike, Akihisa; Hirayama, Tetsuhiro; Yoden, Toshiaki; Nishigaki, Makoto.

In: Water Resources Research, Vol. 38, No. 8, 01.08.2002, p. 351-3514.

Research output: Contribution to journalArticle

Nakaya, Shinji ; Yohmei, Taiyoh ; Koike, Akihisa ; Hirayama, Tetsuhiro ; Yoden, Toshiaki ; Nishigaki, Makoto. / Determination of anisotropy of spatial correlation structure in a three-dimensional permeability field accompanied by shallow faults. In: Water Resources Research. 2002 ; Vol. 38, No. 8. pp. 351-3514.
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