Abstract
Capillary effects in low flow rate displacement experiments cause error in relative permeability values calculated by JBN or Jones and Roszelle methods. The results from a series of displacement and capillary pressure experiments were used along with a history matching package to quantify the changes in relative permeabilities with rate. The experiments were conducted with different rates on short and long cores. The history matching procedure was developed using a one-dimensional, two phase finite difference simulator, and the Levenberg-Marquardt optimization algorithm.
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