Analysis Of Quality Control Process Of Seismic Data Processing

Seismic data processing is one of the three major links in seismic exploration and a bridge connecting acquisition and interpretation.The quality of seismic data processing determines the accuracy of seismic data interpretation and reservoir prediction.On the one hand,the complexity of underground structures and surface conditions and the limitations of seismic data processing methods lead to a certain degree of error in the processing results.Moreover,the limited frequency of seismic bands and observation apertures also reduces the reliability of processing results.In addition,the processing parameters and processing procedures selected by different processors according to geological targets and processing targets are not the same,and the processing results are more or less different.Therefore,strengthen the quality monitoring of seismic data processing,give full play to the technical potential of existing processing methods,eliminate the impact of various non-geological factors on the quality of seismic data processing,and enhance the reliability of seismic data processing,in the exploration and development of complex oil and gas reservoirs,has a very important foundational role.Based on the carding and analysis of the results of many years of seismic data processing in Dagang Oilfield and Xinjiang Oilfield,this paper has developed quality evaluation factors such as signal-to-noise ratio,resolution,reflection energy and frequency characteristics for the problems existing in the existing quality control process.The main processing links such as statics correction,noise attenuation,deconvolution,velocity modeling and migration imaging propose relatively complete quality control methods and quality control processes,tracking and quality control seismic data processing from point,line,surface and volume.It enhances the scientific,objective and normative nature of seismic data processing quality control.The analysis and research work of this paper has great reference value for fully exploiting the wave field information of field seismic data,reducing the influence of acquisition factors,surface factors and processing factors on the quality of seismic data processing,and improving the processing accuracy of seismic data.