The quality of seismic data is poor and imaging is difficult in case of deep layers because of complex near-surface and underground geological structural conditions in western exploration area,and the structure attributes of deep strata are difficult to be identified only by seismic data due to the inherent non-unique problem and the low resolution problem.The gravity interface inversion method based on 3D seismic stripping was adopted in this study,with the addition of drilling-geological data constraints,which can carry out gravity field source separation by means of forward "stripping" under the seismic structural interface constraints,and then the method could carry out interface inversion for target gravity anomaly.The popular frequency domain Parker-Oldenburg iterative algorithm was adopted in the forward inversion stage,which guaranteed the fast and stable convergence of the inversion.The results show that the three-dimensional seismic peeling method can effectively peel off the high-frequency signals,achieve the accurate acquisition of the gravity anomaly caused by the geological target body and calibrate the deep interface accurately.Deep structural interface inversion was carried out in eastern Junggar basin,which proved the method is an effective method for studying deep geological targets.
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