Abstract: In order to improve the efficiency of water flooding, various kinds of measures to carry on comprehensive adjustments and management is taken as water cut increasing. But how to evaluate those measures is very critical for choosing the optimal measure. If indexes chosen are different, 1the evaluated results are also different, which puts forward a difficult problem for the oil field worker’s choice. Fuzzy comprehensive analysis theory in fuzzy mathematics is used and evaluation indexs of measures and develops fuzzy comprehensive arragement method of appraising measure effect is formed.This method is applied to evaluate the effect of those adjust measures used at Xi SanYao
Cai 9th well block of Cai Nan oil field . The results show the method is accurate, simple and convenient, and has important reference value for further studying measures to dig up the potential productivity.

Key words: fuzzy comprehensive, analysis, order, measure