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 language | English |
|---|---|
| Pages (from-to) | 351-3514 |
| Number of pages | 3164 |
| Journal | Water Resources Research |
| Volume | 38 |
| Issue number | 8 |
| Publication status | Published - Aug 1 2002 |
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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 journal › Article
}
TY - JOUR
T1 - Determination of anisotropy of spatial correlation structure in a three-dimensional permeability field accompanied by shallow faults
AU - Nakaya, Shinji
AU - Yohmei, Taiyoh
AU - Koike, Akihisa
AU - Hirayama, Tetsuhiro
AU - Yoden, Toshiaki
AU - Nishigaki, Makoto
PY - 2002/8/1
Y1 - 2002/8/1
N2 - 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.
AB - 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.
KW - Anisotropy
KW - Fault
KW - Geostatistics
KW - Permeability of rocks
KW - Spatial correlation structure
UR - http://www.scopus.com/inward/record.url?scp=0036702596&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036702596&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0036702596
VL - 38
SP - 351
EP - 3514
JO - Water Resources Research
JF - Water Resources Research
SN - 0043-1397
IS - 8
ER -