Extra-low permeability reservoir fracture network quality characterization method based on entropy weight-TOPSIS analysis

Abstract

The invention provides an entropy weight-TOPSIS analysis-based ultra-low permeability reservoir fracturing fracture network quality characterization method, which comprises the following steps of: collecting ultra-low permeability reservoir data, and performing simulated fracturing; establishing a fracture network characterization parameter system on the basis of the simulated fracturing fracture network; and according to the fracture network characterization parameter system, on the basis of entropy weight-TOPSIS analysis, characterizing the fracture network quality. The ultra-low permeability reservoir fracturing fracture network quality characterization method is provided by starting from the ultra-low permeability reservoir and combining the entropy weight-TOPSIS analysis method on the basis of simulating the fracturing fracture network, so that quantitative characterization of the ultra-low permeability reservoir fracturing fracture network quality is achieved, and efficient development of the ultra-low permeability reservoir is facilitated.

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