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8.2.45.58 octave.dataset.rock ¶

Static Method: out = rock () ¶

Measurements on Petroleum Rock Samples

Description ¶

Measurements on 48 rock samples from a petroleum reservoir.

Format ¶

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.

Details ¶

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.

Source ¶

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

Examples ¶

t = octave.dataset.rock;

figure
scatter (t.area, t.perm)
xlabel ("Area of pores space (pixels out of 256x256)")
ylabel ("Permeability (milli-Darcies)")