Patent ID: 7333892

Claim:
A method for developing or evaluating an oil field by carrying out laboratory experiments to determine multiphase flow parameters of the oil field while taking account of local heterogeneity of the oil field, from experimental measurements resulting from at least one multi-flow rate type displacement experiment of injecting a fluid into a sample of the oil field initially saturated with one other displaced fluid during which a rate of injection of the injected fluid is increased at least once after a displaced fluid production stabilization, comprising: determining a local saturation profile of at least one of the fluids in at least one section of the sample; determining, by means of a numerical flow simulator, and for each section, a simulated capillary pressure profile fitted to the experimental measurements and the local saturation profile, from an initial set of relative permeability values as a function of the saturation and from a mean capillary pressure curve as a function of the saturation; deducing, for each section, a local capillary pressure curve as a function of the saturation, from local capillary pressure values obtained by combining the simulated capillary pressure profile and the local saturation profile; determining an injected fluid relative permeability curve, as a function of the saturation and a displaced fluid relative permeability curve as a function of the saturation for the entire sample, by means of the simulator and from the local capillary pressure curves; and using the injected relative fluid permeability curve to evaluate the oil field or to provide production of oil from the oil field.