Font Size: a A A

An Analysis Of The Method To Improve The Resolution Of Seismic Data-deconvolution

Posted on:2015-09-09Degree:MasterType:Thesis
Country:ChinaCandidate:W L ChenFull Text:PDF
GTID:2180330422485935Subject:Geological engineering
Abstract/Summary:PDF Full Text Request
Nearly into the21st century, with the demand of the growing oil and gas resources and ashortage of oil and gas exploration and the further development of oil and gas resources, suchas more complex geological conditions, the increasing depth of exploration, the moreadvanced accuracy requirements of exploration, these characteristics to seismic explorationwork has brought a lot of difficulties and challenges, finding ways to improve the resolutionhas become the core and the key of the problem and the various stages of seismic explorationeternal topic.This paper introduces the basic concepts of the resolution, several factors affect theresolution and several basic ways to improve the resolution, pointing out the differencesbetween visual resolution, resolution and resolution. This article focuses on the deconvolutionto improve seismic resolution, gives the seismic convolution model, the seismic wave model;introduces the basic concepts of deconvolution; specifically introduces several classicdeconvolution method and their basic principles and the key issues of implementation andparameter selection,then makes programs to realize related methods.Deconvolution is a common processing technology of seismic data processing, whichaims to improve the resolution of seismic data through compressing seismic wave, extractingthe reflection coefficient sequence, enhancing high-frequency components of the seismic data,broadening the bandwidth of seismic data. But there deconvolution algorithm is unstable,many assumptions, reducing the signal to noise ratio of seismic data, and many other defects.Finally, through the analysis of the theoretical model and verify the actual dataprocessing deconvolution method improves the resolution and its limitations seismic records.Specifically, the paper uses predictive deconvolution and Radon transform combination filterto eliminate multiple waves, and achieves good results.
Keywords/Search Tags:improving resolution, seismic processing, seismic resolution, spikingdeconvolution, predictive deconvolution, combination filter
PDF Full Text Request
Related items