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Volume 25 Issue 4
Jul.  2022
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TANG Bin, XIONG Ying, XIAO Xianci. Multiple time delays estimation in wellhead acoustic emission oil/gas influx location[J]. ACTA ACUSTICA, 2000, 25(4): 377-381. DOI: 10.15949/j.cnki.0371-0025.2000.04.016
Citation: TANG Bin, XIONG Ying, XIAO Xianci. Multiple time delays estimation in wellhead acoustic emission oil/gas influx location[J]. ACTA ACUSTICA, 2000, 25(4): 377-381. DOI: 10.15949/j.cnki.0371-0025.2000.04.016
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Multiple time delays estimation in wellhead acoustic emission oil/gas influx location

  • University of Electronic Science and Technolopy of China Chengdu 610054

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  • PACS: 
    • 43.30  (Underwater sound)
    • 43.60  (Acoustic signal processing)
  • Received Date: February 02, 1999
  • Revised Date: March 23, 1999
  • Available Online: July 31, 2022
    Graphical Abstract
    • Abstract
  • In wellhead acoustic emission oil/gas iallux location,by analyzing the refiection acoustic signal,received bypressure sensor in the anllulus closing to wellhead,and its covariance matrix eigen-structure in frequency domain,a fastand computational efficient method for estimating signal multiple time delays simultaneously is proposed.Computersimulation condrms its availability.
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