Geostatistical Analysis Of Surface Morphology
And Its Relationship With Hydro-mechanical
Properties Of Natural Fractures
Author(s)
W. Kosasih & V. Rasouli
Abstract
The morphological properties of rock fractures are intimately linked with its
hydro-mechanical behaviours. In this paper, the relationship between the two
properties for a real rock like fracture is studied using geostatistical analysis
techniques. Surface morphology of the fracture is modelled through variograms
for different directions to determine the anisotropy extent of the fracture’s
roughness. The results are then compared to the results of a fluid flow simulation
undertaken for a separate study to determine whether any correlation exists
between the two properties. Observations suggest a clear correlation between
directional dependence of the asperity elevations of a fracture surface and fluid
pressure drop. Thus, geostatistical modelling of surface morphology can
potentially be used to predict and understand the hydro-mechanical properties of
a fracture which can prove to be valuable in real applications such as minimising
the negative impacts of fractures to hydrocarbon production.
Keywords: fracture morphology, fluid flow, geostatistical analysis, variogram
modelling, anisotropy.
Keywords
fracture morphology, fluid flow, geostatistical analysis, variogram
modelling, anisotropy.
Related Book
Other papers in this volume
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