rock {MASS}R Documentation

Measurements on Petroleum Rock Samples

Description

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.

Usage

data(rock)

Format

A data frame with 48 rows and 4 numeric columns.
area area of pores space, in pixels out of 256 by 256
peri perimeter in pixels
shape perimeter/sqrt(area)
perm permeability in milli-Darcies

Source

Data from BP Research, image analysis by Ronit Katz, U. Oxford.

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


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