According to the seismic and geological differences among every oil measures in mid-deep layers at west slope in Qikou Sag, varieties of new techniques on geophysics and geochemistry were introduced , such as seismic pro-cess of target and CWS, neural network seismic microfacies cluster analysis, 3D interval velocity analysis. Taking advan-tage of the series of new techniques aims at predicting synthetically and quantitatively the deep gravity flow channel sandbody. Furthermore, considering the structural setting data, potential structural-lithologic traps were specified. As a re-sult, the geological and drilling effect is obviously promoted. According to the seismic and geological differences among every oil measures in mid-deep layers at west slope in Qikou Sag, varieties of new techniques on geophysics and geochemistry were introduced, such as seismic pro-cess of target and CWS, neural network seismic microfacies cluster Analysis, 3D interval velocity analysis. Taking advan-tage of the series of new invention aims at predicting synthetically and quantitatively the deep gravity flow channel sandbody. Further, considering the structural setting data, potential structural- lithologic traps were specified. As a re- sult, the geological and drilling effect is as promoted