WO2011144215A3 - Method for attenuating harmonic noise in vibroseis by means of referenced time-variant filtering - Google Patents

Method for attenuating harmonic noise in vibroseis by means of referenced time-variant filtering Download PDF

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Publication number
WO2011144215A3
WO2011144215A3 PCT/DZ2011/000003 DZ2011000003W WO2011144215A3 WO 2011144215 A3 WO2011144215 A3 WO 2011144215A3 DZ 2011000003 W DZ2011000003 W DZ 2011000003W WO 2011144215 A3 WO2011144215 A3 WO 2011144215A3
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WO
WIPO (PCT)
Prior art keywords
vibroseis
options
estimated
recording
calculated
Prior art date
Application number
PCT/DZ2011/000003
Other languages
French (fr)
Other versions
WO2011144215A2 (en
Inventor
Farid Chegrouche
Foudil Babaia
Mourad Mender
Chouaib Benchabana
Atman Guerchaoui
Original Assignee
Entreprise Nationale De Geophysique - Enageo- Filiale Du Groupe Sonatrach
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Application filed by Entreprise Nationale De Geophysique - Enageo- Filiale Du Groupe Sonatrach filed Critical Entreprise Nationale De Geophysique - Enageo- Filiale Du Groupe Sonatrach
Publication of WO2011144215A2 publication Critical patent/WO2011144215A2/en
Publication of WO2011144215A3 publication Critical patent/WO2011144215A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28—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
    • G01V1/37—Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy specially adapted for seismic systems using continuous agitation of the ground, e.g. using pulse compression of frequency swept signals for enhancement of received signals
    • G01V1/375—Correlating received seismic signals with the emitted source signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V2210/00—Details of seismic processing or analysis
    • G01V2210/30—Noise handling
    • G01V2210/32—Noise reduction
    • G01V2210/324—Filtering
    • G01V2210/3246—Coherent noise, e.g. spatially coherent or predictable

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The invention relates to a method for improving the quality of vibroseismic data, particularly vibroseismic data acquired in slip-sweep mode, by estimation and attenuation of the different harmonic components (see fig. 3). Said components are estimated from the Ground-Force signal using a separation technique with two options, namely least squares or time-frequency, both of which are adapted to the component to be extracted, and the noise is subdivided into classes. The harmonics specific to the recording in question are calculated and subtracted. Finally, the reference noises relative to each class are calculated and re-estimated using a multiple input/output method with dynamic management of the frequency band, which can be achieved using one of three options: global, cascade or multi-reference, followed by subtraction from the contaminated recording. The data quality is improved by means of appropriate source signal shaping.
PCT/DZ2011/000003 2010-05-20 2011-04-17 Method for attenuating harmonic noise in vibroseis by means of referenced time-variant filtering WO2011144215A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DZ100292 2010-05-20
DZ100292 2010-05-20

Publications (2)

Publication Number Publication Date
WO2011144215A2 WO2011144215A2 (en) 2011-11-24
WO2011144215A3 true WO2011144215A3 (en) 2012-12-06

Family

ID=44545402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DZ2011/000003 WO2011144215A2 (en) 2010-05-20 2011-04-17 Method for attenuating harmonic noise in vibroseis by means of referenced time-variant filtering

Country Status (1)

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WO (1) WO2011144215A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105929453B (en) * 2016-05-13 2017-04-26 东北石油大学 State estimation method for infinite distribution time lag neural network system with channel fading
CN109655893B (en) * 2017-10-12 2020-06-19 中国石油化工股份有限公司 Method and system for eliminating harmonic waves of vibroseis in waveform self-adaptive matching manner
CN114167495B (en) * 2021-11-30 2023-08-11 长江大学 Superimposed autocorrelation filtering method and device for reducing longitudinal wave suppression
CN116413803A (en) * 2021-12-29 2023-07-11 中国石油天然气集团有限公司 Method and device for improving DAS signal-to-noise ratio by utilizing local FK conversion
CN117111155B (en) * 2023-10-25 2023-12-26 东北石油大学三亚海洋油气研究院 Microseism data denoising method based on integrated framework

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805897A1 (en) * 2000-03-01 2001-09-07 Westerngeco Llc Seismic prospecting using vibratory source for geophysical surveys, involves activating vibratory source, measuring outgoing or near-field signal from the vibratory source, and defining basis signals
US20020091487A1 (en) * 2000-10-17 2002-07-11 Western Geco Llc Method of using cascaded sweeps for source coding and harmonic cancellation
WO2004031806A2 (en) * 2002-10-04 2004-04-15 Compagnie Generale De Geophysique Method of reducing harmonic noise in vibroseismic signals
US20090010103A1 (en) * 2007-07-06 2009-01-08 Cggveritas Services Inc. Efficient seismic data acquisition with source separation

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984805A (en) 1973-10-18 1976-10-05 Daniel Silverman Parallel operation of seismic vibrators without phase control
US4982374A (en) 1989-10-23 1991-01-01 Halliburton Geophysical Services, Inc. Method of source coding and harmonic cancellation for vibrational geophysical survey sources
US5550786A (en) 1995-05-05 1996-08-27 Mobil Oil Corporation High fidelity vibratory source seismic method
US6366857B1 (en) 1999-06-25 2002-04-02 Trimble Navigation Limited Noise estimator for seismic exploration
US6418079B1 (en) 1999-09-10 2002-07-09 Westerngeco, L.L.C. Method of reducing harmonic interference while using overlapping source point seismic recording techniques
GB2359363B (en) 2000-02-15 2002-04-03 Geco Prakla Processing simultaneous vibratory seismic data
US6603707B1 (en) 2002-02-26 2003-08-05 Compagnie Generale De Geophysique Method of reducing harmonic noise in vibroseis operations
GB2387226C (en) 2002-04-06 2008-05-12 Westerngeco Ltd A method of seismic surveying
US8050867B2 (en) 2006-05-03 2011-11-01 Exxonmobil Upstream Research Co. Data adaptive vibratory source acquisition method
GB2447236B (en) 2007-03-09 2010-02-24 Westerngeco Seismic Holdings Method of estimating harmonic noise within slip-sweep Vibroseis signals

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2805897A1 (en) * 2000-03-01 2001-09-07 Westerngeco Llc Seismic prospecting using vibratory source for geophysical surveys, involves activating vibratory source, measuring outgoing or near-field signal from the vibratory source, and defining basis signals
US20020091487A1 (en) * 2000-10-17 2002-07-11 Western Geco Llc Method of using cascaded sweeps for source coding and harmonic cancellation
WO2004031806A2 (en) * 2002-10-04 2004-04-15 Compagnie Generale De Geophysique Method of reducing harmonic noise in vibroseismic signals
US20090010103A1 (en) * 2007-07-06 2009-01-08 Cggveritas Services Inc. Efficient seismic data acquisition with source separation

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