Evaluation of oil-gas based grey fisher method

Combining gray correlative analysis with Fisher´s guiding principle and using 2-ary correlative grade to work out gray judgment function by Fisher´s guiding principle, the author sets up gray judgment method for oil-layer. It is successful to analyze the data of surveying well in Qiaokou region, Huazhong plain oil field by this method. In this application, grey Fisher method is superior to both of the method of total correlative rank and the ordinary Fisher´s method.