NO954422L - Fremgangsmåte for adskillelse av en komponent fra akustisk bölge - Google Patents

Fremgangsmåte for adskillelse av en komponent fra akustisk bölge

Info

Publication number
NO954422L
NO954422L NO954422A NO954422A NO954422L NO 954422 L NO954422 L NO 954422L NO 954422 A NO954422 A NO 954422A NO 954422 A NO954422 A NO 954422A NO 954422 L NO954422 L NO 954422L
Authority
NO
Norway
Prior art keywords
array
separating
transformed
filtered
dimensional
Prior art date
Application number
NO954422A
Other languages
English (en)
Other versions
NO954422D0 (no
Inventor
Jian-Cheng Zhang
Mathew George Schmidt
Original Assignee
Western Atlas Int Inc
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 Western Atlas Int Inc filed Critical Western Atlas Int Inc
Publication of NO954422D0 publication Critical patent/NO954422D0/no
Publication of NO954422L publication Critical patent/NO954422L/no

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
    • G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
    • G01V1/44—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
    • G01V1/48—Processing data

Landscapes

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

Abstract

Fremgangsmåte for separering av en forutbestemt bolgeutbredende modus fra signaler som genereres av et bronnlogge- verktøy utstyrt med akustisk array. Mottagersignaler fra verktøyet digitali- seres og omformes til en todimensjonal array. Den todimensjonale array omformes til en (f,k)-array ved hjelp av en todimensjonal Fourier-transformasjon. Den aktuelle (f,k)-array blir båndpassfiltrert med henblikk på hastigheten for å utskille den forutbestemte utbredelsesmodus. Den i I filtrerte (f,k)-array omformes tilbake til ' tids/avstands-domenet ved å benytte en in- vers, todimensjonal Fourier-transforma- ', sjon. Ved en spesiell utførelse av forelig- gende oppfinnelse blir de filtrerte tidsdomene-data likhetskorrelert for fast- leggelse av en akustisk hastighet for den forutbestemte utbredelsesmodus i en jordformasjon.
NO954422A 1994-11-08 1995-11-03 Fremgangsmåte for adskillelse av en komponent fra akustisk bölge NO954422L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US33567994A 1994-11-08 1994-11-08

Publications (2)

Publication Number Publication Date
NO954422D0 NO954422D0 (no) 1995-11-03
NO954422L true NO954422L (no) 1996-05-09

Family

ID=23312803

Family Applications (1)

Application Number Title Priority Date Filing Date
NO954422A NO954422L (no) 1994-11-08 1995-11-03 Fremgangsmåte for adskillelse av en komponent fra akustisk bölge

Country Status (3)

Country Link
CA (1) CA2162065A1 (no)
GB (1) GB2295014B (no)
NO (1) NO954422L (no)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2359135B (en) * 1998-11-20 2003-04-16 Schlumberger Ltd Processing well log data
US6611764B2 (en) * 2001-06-08 2003-08-26 Pgs Americas, Inc. Method and system for determining P-wave and S-wave velocities from multi-component seismic data by joint velocity inversion processing
AU2005325123B2 (en) 2005-01-14 2010-11-25 Exxonmobil Upstream Research Company Method and apparatus for estimating formation slowness
CN109597021B (zh) * 2018-11-05 2021-02-05 北京航天控制仪器研究所 一种波达方向估计方法及装置
CN111380957B (zh) * 2020-03-11 2021-02-19 大连理工大学 一种基于频率-波数域滤波的超声导波检测方法
CN112379403B (zh) * 2020-12-14 2024-01-16 北京华晖探测科技股份有限公司 一种地下采空区的探测方法及系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5067112A (en) * 1991-01-04 1991-11-19 Mobil Oil Corporation Method for removing coherent noise from seismic data through f-x filtering

Also Published As

Publication number Publication date
CA2162065A1 (en) 1996-05-09
NO954422D0 (no) 1995-11-03
GB2295014B (en) 1998-04-29
GB2295014A (en) 1996-05-15
GB9522794D0 (en) 1996-01-10

Similar Documents

Publication Publication Date Title
NO20052430L (no) Fremgangsmate for a eliminere virkningene av mottagerkobling fra seismiske data
Radlovic et al. Nonminimum-phase equalization and its subjective importance in room acoustics
JP2659461B2 (ja) 反響抑制のための改良された方法
Scherbaum Seismic imaging of the site response using microearthquake recordings. Part I. Method
FR2682251B1 (fr) Procede et systeme de prise de son, et appareil de prise et de restitution de son.
CA2367018A1 (en) Seismic data processing method for data acquired using overlapping vibratory sweeps
EA199800627A1 (ru) Способ фильтрования искажений данных, получаемых во время сейсмических исследований
Tindle et al. Measurements of the frequency dependence of normal modes
NO20002281L (no) Seismisk prospektering med konverterte bölger
IE893085L (en) Marine seismic exploration
WO2002044758A3 (en) Method and system for deghosting
BR9608744A (pt) Sistema e processo para evitar falsa convergência na presença de tons em um processo de cancelamento de eco de domínio de tempo
DE69530040D1 (de) Verfahren zur echokompensation und echopfadschätzung
ATE343874T1 (de) Echounterdrückung unter verwendung von vordergrund- und hintergrundfiltern
FI963769A (fi) Akustisen kaiun kumoaja, jossa on adaptiivinen suodin, jossa siirrytään taajuustasoon
NO954422L (no) Fremgangsmåte for adskillelse av en komponent fra akustisk bölge
WO1997011390A3 (en) Multiple suppression in geophysical data
Mourjopoulos et al. Modelling and enhancement of reverberant speech using an envelope convolution method
US5398286A (en) System for enhancing an analog signal
Herrmann et al. Ground roll: Rejection using adaptive phase-matched filters
GB2342997A (en) A method of processing seismic data
Womack et al. Encoding techniques for multiple source point seismic data acquisition
CA2219478A1 (en) Method for frequency domain seismic data processing on a massively parallel computer
Martins et al. A time-frequency approach to blind deconvolution in multipath underwater channels
NO940767L (no) Fremgangsmåte for interferensdempning ved overföring og/eller lagring av akustiske eller optiske signaler