A Study Of Seismic Data Processing Of Amplitude Preserving Amplitude Preserving Establishing Evaluation Rules And Key Technology

Exploration for subtle reservoirs have very high requirements for amplitude&authenticitypreserved of seismic achievements data, but there is no corresponding amplitude-preservedevaluation standards and methods. So it is very necessary to carry out the study ofamplitude-preserved evaluation standards and the amplitude-preserved feature of keytechnology.Basing on summarizing existing research results, the paper adopts Viscoelastic mediumstaggered grids high order difference elastic wave simulation method which has betteramplitude-preserved, to ensure the accuracy of forward modelling, the computationalefficiency and the channel sand body and gravel rock mass forward modeling data conformingto the study of amplitude-preserved. On the basis, aiming at the stage of feature andrequirements of seismic exploration, we divide the seismic data processing to5phases andestablish amplitude-preserved evaluation standard separately； By means of testing andanalyzing the forward data and actual seismic data, we complete the study of preservedamplitude of analysis and evaluation of the key technology, such as amplitude compensation,pre-stack noise attenuation, deconvolution and so on. Through the research, we providereasonable basis and effective means of monitoring for the preserved amplitude processing ofseismic data, the higher preserved amplitude and fidelity can be provided for the developmentof subtle reservoirs.