Effective processing technology and application of seismic data in Ashele metal mine,Xinjiang
Due to the special surface and underground seismic geological conditions,it is quite difficult to obtain high-quality imaging in Ashele,Xinjiang.For the fact that the raw seismic records are mixed with various interference waves,the signal-to-noise ratio of the data is low.According to the actual scenarios,the raw seismic data and the characteristics of interference waves are analyzed,and an effective processing scheme is designed.First,the influence of topographic relief and low deceleration zones is eliminated by static correction technology.The interference of surface wave,acoustic wave,linear noise and noise from mechanical vibration is suppressed by multi-domain joint denoising.Through parameter debugging and comparative analysis,the denoising parameters suitable for this metal mining area are found.Combined with velocity analysis and the residual static correction technology,the problem of short-wavelength static correction is solved,and reliable stacking speed is obtained,which improves the effect of in-phase stacking and provides a good foundation for subsequent data interpretation work.The research shows that the key processing technologies including static correction,pre-stack series denois-ing and velocity analysis have strong adaptability in Ashele metal mining area in Xinjiang,which can provide some reference for seismic data processing of metal mines in such areas.
seismic exploration of metal minessignal-to-noise ratiostatic correctionprestack denoisingvelocity analysis
万方数据
维普
