The application of grey relevancy predict water blocking in Gu Longnan area of Daqing

Compared to conventional analysis means, grey relevancy is excellent for its simple, intuitive with less calculation, it is not strict with the size of samples, needs not typical distribution rules, and generally the result of quantitative analysis and qualitative analysis are coincident. It has an outstanding advantage on the analysis of gray system with uncertainty knowledge. This paper applies new expression of coefficient of grey relevancy and explores the method of using gray relevancy predicting damage degree of water blocking combined with practical situation of Gu Longnan area of Daqing.