Measurements on Petroleum Rock Samples

Arguments

area The area of the pores space (in pixels out of 256 x 256).
peri The total perimeter of the pores (in pixels).
shape The shape of the pores space defined as peri/sqrt(area).
perm The permeability in milli-Darcies.

SUMMARY

The rock data frame has 48 rows and 4 columns.

Twelve core samples from petroleum reservoirs were sampled by 4 cross-sections. Each core sample was measured for permeability, and each cross-section has total area of pores, total perimeter of pores, and shape.

DATA DESCRIPTION

This data frame contains the following columns:

SOURCE

The data were collected and kindly made available by R. Katz of the Department of Statistics at the University of Oxford.

Katz, R. (1995) Spatial Analysis of Pore Images. D.Phil. thesis, Department of Statistics, University of Oxford.

OTHER REFERENCES

Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.

Venables, W.N. and Ripley, B.D. (1994) Modern Applied Statistics with S-Plus. Springer-Verlag.


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