地下き裂の相対座標を推定するための近接型AEダブレットの自動検出法 Automatic Detection of Proximity AE Doublets for Relative Location of Subsurface Fracture Reservoir

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Automatic detection of proximity Acoustic Emission (AE) doublets is described in this paper. Proximity AE doublets are microseismic data in which the second event with a similar waveform arrives before attenuation of the first event. Number of AE events is much more than thousand when a subsurface fracture reservoir is stimulated during hydraulic fracturing. It is routine and huge work to detect proximity AE doublets in the many AE events. Cepstrum of proximity AE doublets has a peak at quefrency that shows interval between P-waves. We analyze three-component AE signal, which represents three-dimensional particle motion of AE. Three-component AE measurement is often carried out in subsurface AE measurement. Quefrency of the maximum of cepstrum is compared among three components. Cepstrums of proximity AE doublets have the maximum at similar quefrency in three components. On the other hands, cepstrums of AE events except for proximity AE doublets have the maximum at different quefrency in three components. 94 % of proximity AE doublets are detected automatically and 100 % of AE events that are not proximity AE doublets are not recognized as proximity AE doublets in the automatic detection.

収録刊行物

  • 電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society  

    電気学会論文誌. C, 電子・情報・システム部門誌 = The transactions of the Institute of Electrical Engineers of Japan. C, A publication of Electronics, Information and System Society 128(6), 1005-1010, 2008-06-01 

    The Institute of Electrical Engineers of Japan

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各種コード

  • NII論文ID(NAID)
    10021132866
  • NII書誌ID(NCID)
    AN10065950
  • 本文言語コード
    JPN
  • 資料種別
    ART
  • ISSN
    03854221
  • NDL 記事登録ID
    9532101
  • NDL 雑誌分類
    ZN31(科学技術--電気工学・電気機械工業)
  • NDL 請求記号
    Z16-795
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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