Darcy’s-Law; Macroscopic-scale; Experimental parameters measured at a scale that is lesser than macroscopic-scale:
When we characterize a petroleum reservoir with the Darcian approach,
it essentially implies that we are going to replace
the actual ensemble of sand-grains/clay, shale, silt-particles/rock-fragments
that make up the petroleum reservoir by a representative continuum,
for which,
we can define macroscopic parameters, such as the reservoir-permeability, and
utilize macroscopic-laws, such as Darcy’s law
in order to provide
the macroscopically averaged descriptions of the microscopic behavior.
If so, can we consider any (laboratory based) parameter
that is measured
at a scale lesser than the macroscopic-scale,
when the reservoir is characterized
using Darcian approach?
Suresh,
can you please clarify your question. Do you mean ‘can we use permeability values as measured in the laboratory directly in a 3-D reservoir model’ or do you mean something different? If the latter, what do you really ask?
Regards,
W J Evert van de Graaff
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