Diapir zone has great potential for oil and gas exploration,but due to the shallow gas clouds,its poor imaging quality and inaccurate structure in seismic section bring difficul-ties to the implementation of potential targets of oil bearing structures on the periphery.To solve the problem of fuzzy zone imaging,this paper discusses the practice of fuzzy zone seis-mic acquisition in recent years,analyses the advantage of new acquisition and the common characteristics of old and new seismic data of different periods,based on several key process-ing techniques,including the protection of weak signals processing,high resolution velocity inversion and Q PSDM,puts forward some universality strategy for different acquisitions.In Yinggehai L Basin processing practices,the signal-to-noise ratio of the seismic data in the core of diapir fuzzy area is improved,the correlation coefficient of well earthquake is in-creased by 38％compared with the original processing,the depth domain structure is in good agreement with the measured well,especially the reprocessing image quality of the old data is as good as the new data,which verify the effectiveness of this method for exploring the potential of diapiric fuzzy region imaging,and can provide a reference for the subsequent acquisition and processing of similar areas.
万方数据
维普
