Sampling procedure for small-scale heterogeneities (crossbedding) for reservoir modelling |
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| Authors: | D Mikes |
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| Institution: | aHof van Groenen 21, 1083 JR, Amsterdam, The Netherlands;bDepartment of Applied Earth Sciences, Delft University of Technology, P.O. Box 5028, NL-2600GA Delft, The Netherlands |
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| Abstract: | Sampling permeability from individual laminae in crossbedded rocks is very well possible by making use of a so-called probe permeameter. The methodology and calculation of permeabilities from the output of this instrument are fairly well-established. However, what is hardly established is a sampling strategy that guarantees adequate representation of permeability contrast between laminae. Especially so, because finer foreset and bottomset are difficult to sample, yet their permeabilities are critical to fluid flow through a crossbed. Therefore we propose to systematically sample laminae. To this end we suggest a sampling strategy that is adapted to the heterogeneity under study, namely to the thickness of the finer foreset. |
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| Keywords: | Permeability sampling Small-scale heterogeneity Lamina |
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