Abstract:Looking for concealed oil/gas reservoir is becoming one of hot-points of most interest by the people.A year ago,the author used the technical idea forming the mode of "seismic analysis by reservoir evolution"to deeply study the development case of concealed oil/gas reservoir in a oilfield of northern Tarim basin.The set of technical ideas is:first,adopting the processing of improving resolution based on amplitude and waveform preservation;then,picking up seismic attributes along referential markers on a basis of conducting well information labeling for referential markers;finally,the thin reservoir the thickness is less than 1/4 wavelength being identified by spatial changes of seismic attributes.It is proved after over one year’s development of the concealed oil/gas reservoir that the currently developed areas coincided similarly with distributed areas of predicted seismic amplitude anomaly provided before,which proved the author-summed-up interpretation method of "seismic analysis by reservoir evolution" has broad application prospect for exploration of concealed oil/ gas reservoir.