反射ホライゾン追跡の自動化と速度解析への適用

DOI

書誌事項

タイトル別名
  • Automatic picking of seismic reflection and its application to velocity analysis.

抄録

In the present paper, the algorithm for automatic picking of seismic reflection on seismograms is proposed.<br>The procedure of proposed algorithm is as follows.<br>1. The seismograms are transformed to the maximum amplitude seismograms which contain the amplitudes on both all peaks and all troughs.<br>2. The time to start the picking of reflection is assigned on each trace in the maximum amplitude seismograms.<br>3. A lateral continuity search between the traces on seismograms is carried out by use of amplitude ratio, cross-correlation coefficients and semblance across the traces in order to define reflection segments.<br>4. Each segment is classified into grades according to magnitude of amplitude and length of segment.<br>5. If necessary, after some kinds of scaling are applied to all segments for decreasing the segments to be plotted, the segments are displayed to make cross-section.<br>Judging from the results in model studies of the synthetic seismograms and the output from velocity analysis in which this algorithm was applied, it was concluded that the picking of seismic reflection on seismograms was carried out with enough accuracy.

収録刊行物

詳細情報 詳細情報について

  • CRID
    1390282679037796352
  • NII論文ID
    130003755777
  • DOI
    10.3720/japt.58.237
  • ISSN
    18814131
    03709868
  • 本文言語コード
    ja
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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