Comprehensive analyzing method and apparatus for fracture-vug type carbonate reservoir exhaustion exploitation features

Abstract

The invention discloses a comprehensive analyzing method and apparatus for fracture-vug type carbonate reservoir exhaustion exploitation features. The method comprises the following steps of selecting feature attribute parameters of the fracture-vug type carbonate reservoir to build an evaluating sample set for fracture-vug type carbonate reservoir exhaustion exploitation features, conducting disperse particle swarm global optimization processing to the evaluating sample set to self-adaptively solve an initial clustering center and an optimal clustering grouping number for the evaluating sample set, and conducting fuzzy clustering analysis for the fracture-vug type carbonate reservoir exhaustion exploitation features based on the initial clustering center and an optimal clustering grouping number. Fuzzy clustering analysis can be conducted to the fracture-vug type carbonate reservoir exhaustion exploitation features, so comprehensive analysis result reliability can be improved; and theoretical foundation can be laid for oil recovery enhancement and differential comprehensive treatment of different types of exhaust exploitation oil wells; and development effect of the fracture-vug type carbonate reservoir can be improved.

Description

technical field [0001] The invention relates to the technical field of oil reservoir exploitation, in particular to a comprehensive analysis method and device for the depletion exploitation characteristics of fracture-cavity carbonate rock reservoirs. Background technique [0002] Compared with continental clastic reservoirs, marine carbonate reservoirs are especially fractured-cavity carbonate reservoirs formed after multi-stage tectonic movements, multi-stage karst overlay reformation, and multi-stage accumulation. , various reservoir development models, complex types of reservoir space (including large caves, dissolved pores or fractures, etc.), serious heterogeneity, and difficult development. At present, depletion mining is the main method. How to comprehensively and quantitatively classify and evaluate its depletion It is very meaningful to improve the development effect of fractured-cavity carbonate reservoirs by analyzing the production characteristics and classifyin...

AI Technical Summary

Problems solved by technology

However, due to the inherent shortcomings of being sensitive to initial data, relying on artificially setting the initial clustering center and number of clustering groups, and easily falling into a local optimal solution, the conventional fuzzy clustering algorithm is not suitable for cracks and holes with many types of media and large scale differences. Poor adaptability to carbonate reservoirs

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