Patent ID: 9477009
Filing Date: 2016-10-25
CPC Classification: E21B,G01V

Claim Text:
1. A method of evaluating a recovery potential of hydrocarbons contained in porous matrix blocks of a reservoir limited by fractures, using a recovery technique wherein a fluid is injected into the reservoir, for at least one matrix block comprising: i) acquiring data characteristic of the reservoir, data obtained from well tests and data relative to development conditions of the reservoir; ii) estimating a pressure gradient related to a flow of the fluid in the fractures, from data acquired in i), iii) calculating a recovery coefficient for the hydrocarbons initially in place in the at least one block, by estimating a fluid saturation for a state of equilibrium of the a least one matrix block, from the pressure gradient and from data acquired in i); and iv) estimating a hydrocarbon recovery time under an effect of flow of the fluid in the fractures by determining a time required for changing from an initial state to an equilibrium state of the matrix block, by applying two-phase displacement laws, from the pressure gradient and from data acquired in i).