3D-VSP and Surface Full-azimuth Seismic Integrated Study in Daqing Oil Field

Along with the progress of VSP techniques, especially the improvement of downhole geophone manufacture and VSP data<br>processing methods, now the survey mode has developed from zero offset VSP, offset VSP to Walkaway-VSP, Walkaround-<br>VSP and 3D-VSP corresponding to different geological objectives. VSP techniques have obtained partial success in parameter<br>estimation, high precision imaging and reservoir characterization, but obtained dataset is range limited and imaging still need<br>to be improved. In order to broaden the range of survey and expand the advantages of VSP to surface seismic, large array 3DVSP<br>and full-azimuth surface seismic survey were carry out in XJWZ area of Daqing oil field.