EA200900650A1 - Способ подавления множественных отражений в сейсмических сигналах - Google Patents

Способ подавления множественных отражений в сейсмических сигналах

Info

Publication number
EA200900650A1
EA200900650A1 EA200900650A EA200900650A EA200900650A1 EA 200900650 A1 EA200900650 A1 EA 200900650A1 EA 200900650 A EA200900650 A EA 200900650A EA 200900650 A EA200900650 A EA 200900650A EA 200900650 A1 EA200900650 A1 EA 200900650A1
Authority
EA
Eurasian Patent Office
Prior art keywords
signals
seismic signals
pass filtered
multiple reflections
mask
Prior art date
Application number
EA200900650A
Other languages
English (en)
Other versions
EA017331B1 (ru
Inventor
Эдвард Джеймс Феррис
Original Assignee
Пгс Геофизикал Ас
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Пгс Геофизикал Ас filed Critical Пгс Геофизикал Ас
Publication of EA200900650A1 publication Critical patent/EA200900650A1/ru
Publication of EA017331B1 publication Critical patent/EA017331B1/ru

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
    • G01V1/3808—Seismic data acquisition, e.g. survey design
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/36—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
    • G01V1/364—Seismic filtering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/20—Trace signal pre-filtering to select, remove or transform specific events or signal components, i.e. trace-in/trace-out
    • G01V2210/21—Frequency-domain filtering, e.g. band pass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/50—Corrections or adjustments related to wave propagation
    • G01V2210/56—De-ghosting; Reverberation compensation

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Acoustics & Sound (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Oceanography (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

Предложенный способ подавления множественных отражений в сейсмических сигналах включает когерентное фильтрование сейсмических сигналов. Сейсмические сигналы представляют собой сейсмические сигналы, отфильтрованные через фильтр низких частот, и сейсмические сигналы, отфильтрованные через фильтр высоких частот, относительно частоты, выбранной так, что в сейсмических сигналах выше этой частоты по существу присутствуют только множественные отражения. Генерируют маску со значением, равным единице, когда амплитуда сигнала, отфильтрованного через фильтр высоких частот, превышает выбранное пороговое значение. Для всех прочих отфильтрованных сигналов маска имеет значение, равное нулю. Значение маски умножают на величины сигналов, отфильтрованных через фильтр низких частот. Умноженные сигналы прибавляют к сигналам, отфильтрованным через фильтр высоких частот, и применяют когерентное фильтрование с целью удаления оставшихся первичных волн для получения модели множественных отражений. Эта модель множественных отражений вычитается из когерентно отфильтрованных сейсмических сигналов.
EA200900650A 2008-06-30 2009-06-03 Способ подавления множественных отражений в сейсмических сигналах EA017331B1 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/215,862 US7675812B2 (en) 2008-06-30 2008-06-30 Method for attenuation of multiple reflections in seismic data

Publications (2)

Publication Number Publication Date
EA200900650A1 true EA200900650A1 (ru) 2010-04-30
EA017331B1 EA017331B1 (ru) 2012-11-30

Family

ID=41172445

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200900650A EA017331B1 (ru) 2008-06-30 2009-06-03 Способ подавления множественных отражений в сейсмических сигналах

Country Status (12)

Country Link
US (1) US7675812B2 (ru)
EP (1) EP2141514B1 (ru)
CN (1) CN101620276B (ru)
AT (1) ATE555401T1 (ru)
AU (1) AU2009202480B2 (ru)
BR (1) BRPI0902020B1 (ru)
CA (1) CA2668376C (ru)
EA (1) EA017331B1 (ru)
EG (1) EG25387A (ru)
MX (1) MX2009007165A (ru)
MY (1) MY147741A (ru)
SG (1) SG158010A1 (ru)

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AU2011337162B2 (en) 2010-12-01 2014-11-06 Exxonmobil Upstream Research Company Primary estimation on OBC data and deep tow streamer data
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WO2012158456A1 (en) * 2011-05-13 2012-11-22 Saudi Arabian Oil Comapny Frequency-varying filtering of simultaneous source seismic data
AU2012290435B2 (en) * 2011-07-29 2014-11-20 Shell Internationale Research Maatschappij B.V. Method for increasing broadside sensitivity in seismic sensing system
US9075162B2 (en) * 2011-11-10 2015-07-07 Pgs Geophysical As Method and system for separating seismic sources in marine simultaneous shooting acquisition
US9612351B2 (en) 2012-07-10 2017-04-04 Chevron U.S.A. Inc. System and method for estimating and attenuating noise in seismic data
US20150032379A1 (en) * 2013-03-13 2015-01-29 Westerngeco L.L.C. Attenuation of multiple reflections
US9784869B2 (en) 2013-05-15 2017-10-10 Pgs Geophysical As Noise models by selection of transform coefficients
US9817143B2 (en) 2013-10-30 2017-11-14 Pgs Geophysical As Methods and systems for constraining multiples attenuation in seismic data
US11391857B2 (en) * 2013-12-30 2022-07-19 Pgs Geophysical As Methods and systems for attenuating residual acoustic energy in seismic data
US10670757B2 (en) * 2014-02-26 2020-06-02 Pgs Geophysical As Methods and systems for quantifying coherency and constraining coherency-based separation in simultaneous shooting acquisition
US9964656B2 (en) 2014-08-29 2018-05-08 Pgs Geophysical As Methods and systems to remove particle-motion-sensor noise from vertical-velocity data
US10444386B2 (en) 2014-08-29 2019-10-15 Pgs Geophysical As Methods and systems that determine a velocity wavefield from a measured pressure wavefield
MX2019004317A (es) * 2016-10-13 2019-09-18 Downunder Geosolutions Pty Ltd Método para la atenuación de múltiples reflexiones en instalaciones de agua superficial.
CN108919357B (zh) * 2018-05-16 2019-10-11 中国海洋石油集团有限公司 一种基于频谱重构的鬼波压制方法
CN108732624A (zh) * 2018-05-29 2018-11-02 吉林大学 一种基于pca-emd的并行震源地震数据随机噪声压制方法
WO2020171816A1 (en) * 2019-02-21 2020-08-27 Halliburton Energy Services, Inc. Waveform processing utilizing an amplitude adaptive data mask
CN111929726B (zh) * 2019-09-04 2023-02-10 中国石油天然气股份有限公司 地震相干数据体处理方法及装置
GB2590177B (en) * 2019-11-21 2023-11-01 Cgg Services Sas Methods and devices performing adaptive subtraction of multiples

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Also Published As

Publication number Publication date
BRPI0902020A2 (pt) 2010-04-13
MX2009007165A (es) 2010-02-17
SG158010A1 (en) 2010-01-29
US20090323470A1 (en) 2009-12-31
CA2668376A1 (en) 2009-12-30
CN101620276A (zh) 2010-01-06
CN101620276B (zh) 2015-03-25
EP2141514A2 (en) 2010-01-06
BRPI0902020B1 (pt) 2019-10-15
ATE555401T1 (de) 2012-05-15
CA2668376C (en) 2014-09-09
MY147741A (en) 2013-01-15
EP2141514B1 (en) 2012-04-25
US7675812B2 (en) 2010-03-09
AU2009202480A1 (en) 2010-01-14
AU2009202480B2 (en) 2014-03-27
EA017331B1 (ru) 2012-11-30
EG25387A (en) 2011-12-25
EP2141514A3 (en) 2011-02-23

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