Abstract：Nowadays the seismic data Q absorption and compensation technique is facing 3 challenges, they are accurate estimation of Q factor, high frequency noise control in Q absorption and compensation and the evaluation for the results of Q absorption and compensation respectively. For better compensation effects, it is suggested in this paper that the selection of compensation operator's amplitude change with frequency needs to be more flexible so that it can fit the signal to noise ratio's change with the frequency for the input data. Through analysis for application of theoretical data and field data, the evaluation method for Q absorption and compensation of field data was summarized, it is revealed that regarding signal fidelity and raising resolution, the Q absorption and compensation technique is superior to statistic deconvolution technique which is currently being used in routine seismic data processing.
