Technique characterizes permeability of stress-sensitive reservoirs

A technique has been developed to characterize permeability of stress-sensitive reservoirs as functions rather than unique numbers.These permeability functions obtained by well testing may be thought of as an average of the drainage-area length. Hence, pressure-transient analysis provides large-scale estimates of the permeability function.The functions are required for reservoir modeling of stress-sensitive reservoirs and describe the variation of permeability with pressure. This function may be obtained by integrating either core or well-test data and is required for high pressure and compacted reservoirs.The proposed technique is independent of detailed core analysis. The assumption, ho...

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