Determining Relative Permeability From Unsteady-State Radial Fluid Displacements

摘要

The practical interpretation formulae which can be used forrndetermination of the relative permeability data from thernproduction and/or injection performance data are derivedrnbased on the formulation of the near-well-bore immisciblernfluid displacement process. The formulations for convenientrncalculation of the relative permeability data similar to the JBNrnmethod are provided and validated using the laboratory datarnobtained by the radial immiscible fluid displacement tests inrnhorizontal porous disks. The applications demonstrate therncapabilities of the present interpretation method.