For the carbonate reservoir the Jialingjiang group in the X area,it is not always correct to identify fluid property using t
he conventional methods, such as the oil and gas saturation and the formation resistivity features from the logging data because of the complexity and variance  of the carbonate geological characteristics and fluid distribution state.Combining the grey correlation analysis method with the fuzzy set theory,a method of the fuzzy grey correlation pattern recognition is proposed herd to determine the f
luid property more precisely.Use the fuzzy relative subordination degree to normalize the sequence of the object to be identified;and a vector of the fuzzy greycorrelation degree os derived.Then the identification is made by thd principle  and precise compared with the production test conclusions,which have brought for  ward some geological effect.