Abstract:

On the base of gray theory and fuzzy mathematics, the optimal decision-making of the block profile modification and displacement project were discussed with the gray association. The study indicated the gray association model can deal with optimal decision-making of project with correlation among element. With the increase semidiameter of the deal with, the water and oil product was improved obviously, but the project was not the best one while considered the fact of water and oil and the cost of project etc.

Key words: modification and displacement project, association-degree, authority layer, decision-making model