BR0003210A - Método de análise de sinais adquiridos para localização automática nele de pelo menos um instante significativo - Google Patents

Método de análise de sinais adquiridos para localização automática nele de pelo menos um instante significativo

Info

Publication number
BR0003210A
BR0003210A BR0003210-7A BR0003210A BR0003210A BR 0003210 A BR0003210 A BR 0003210A BR 0003210 A BR0003210 A BR 0003210A BR 0003210 A BR0003210 A BR 0003210A
Authority
BR
Brazil
Prior art keywords
signal
acquired
instant
limit value
significant instant
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
BR0003210-7A
Other languages
English (en)
Inventor
Jean-Pierre Deflandre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IFP Energies nouvelles
Original Assignee
IFP Energies nouvelles
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 IFP Energies nouvelles filed Critical IFP Energies nouvelles
Publication of BR0003210A publication Critical patent/BR0003210A/pt
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V1/00Seismology; Seismic or acoustic prospecting or detecting
    • G01V1/28Processing seismic data, e.g. for interpretation or for event detection
    • G01V1/288Event detection in seismic signals, e.g. microseismics

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Acoustics & Sound (AREA)
  • Geology (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

Patente de Invenção: <B>"MéTODO DE ANáLISE DE SINAIS ADQUIRIDOS PARA LOCALIZAçãO AUTOMáTICA NELE DE PELO MENOS UM INSTANTE SIGNIFICATIVO"<D>. Método pretendido para uma análise automática de sinais adquiridos por um ou mais captadores de onda elástica ou acústica, de modo a localizar automaticamente neles, com alta precisão, pelo menos um instante significativo , tal como o tempo de primeira chegada em cada captador (t~ i~) e/ou o tempo final (t~ f~) desses sinais. O método essencialmente compreende a determinação do pseudoperíodo correspondente ao inverso da freq³ência dominante do espectro de freq³ência de cada sinal adquirido, a codificação de cada sinal adquirido, de modo a formar um sinal codificado binário com referência a um primeiro valor limite, que depende do sinal adquirido, a formação, para cada um deles, de um sinal integral pelo empilhamento do sinal codificado binário em uma janela deslizante, de modo a determinar um segundo valor limite, e o posicionamento do instante significativo buscado (t~,i~ t~ f~) em cada sinal adquirido, com referência a um instante em que o sinal integral correspondente atinge este segundo valor limite. O método é auto-adaptativo, porque ele usa parâmetros (notadamente os valores limite) que dependem das características dos sinais recebidos. Ele pode ser aplicado notadamente para monitoração sísmica (ativa ou passiva) de reservatórios subterrâneos, no campo da acústica em geral, em sonares, etc.
BR0003210-7A 1999-07-28 2000-07-28 Método de análise de sinais adquiridos para localização automática nele de pelo menos um instante significativo Pending BR0003210A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9909883A FR2797056B1 (fr) 1999-07-28 1999-07-28 Methode d'analyse de signaux acquis pour pointer automatiquement sur eux au moins un instant significatif

Publications (1)

Publication Number Publication Date
BR0003210A true BR0003210A (pt) 2001-03-13

Family

ID=9548687

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0003210-7A Pending BR0003210A (pt) 1999-07-28 2000-07-28 Método de análise de sinais adquiridos para localização automática nele de pelo menos um instante significativo

Country Status (7)

Country Link
US (1) US6598001B1 (pt)
EP (1) EP1074858B1 (pt)
BR (1) BR0003210A (pt)
CA (1) CA2316710C (pt)
DE (1) DE60006906T2 (pt)
FR (1) FR2797056B1 (pt)
NO (1) NO332717B1 (pt)

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FR2830623B1 (fr) 2001-10-05 2004-06-18 Inst Francais Du Petrole Methode pour la detection et le classement automatique suivant differents criteres de selection, d'evenements sismiques dans une formation souterraine
GB2403803B (en) 2003-07-05 2005-09-21 Westerngeco Ltd Processing seismic data
JP2005243907A (ja) * 2004-02-26 2005-09-08 Renesas Technology Corp 半導体装置
US20060020412A1 (en) * 2004-07-23 2006-01-26 Bruensteiner Matthew M Analog waveform information from binary sampled measurements
US20090279387A1 (en) * 2008-05-06 2009-11-12 Pgs Geophysical As Marine passive seismic method for direct hydrocarbon detection
FR2931953B1 (fr) 2008-05-28 2010-06-18 Inst Francais Du Petrole Procede pour localiser l'origine spatiale d'un evenement sismique se produisant au sein d'une formation souterraine
CN101620241B (zh) * 2008-07-01 2011-05-04 鸿富锦精密工业(深圳)有限公司 信号解码系统及其解码方法
US8321134B2 (en) 2008-10-31 2012-11-27 Saudi Arabia Oil Company Seismic image filtering machine to generate a filtered seismic image, program products, and related methods
US11774616B2 (en) 2011-08-29 2023-10-03 Seismic Innovations Method and system for microseismic event location error analysis and display
US9945970B1 (en) * 2011-08-29 2018-04-17 Seismic Innovations Method and apparatus for modeling microseismic event location estimate accuracy
CA2931805C (en) * 2013-12-05 2022-07-12 Cgg Services Sa Methods and systems of detecting a microseismic event using an iterative non-linear inversion algorithm
CN110210296B (zh) * 2019-04-25 2021-09-17 长江大学 一种结合U-net网络和DenseNet网络的微地震有效信号检测方法

Family Cites Families (16)

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US4258423A (en) * 1979-12-05 1981-03-24 The United States Of America As Represented By The Secretary Of The Army Microprocessor controlled digital detector
US4319329A (en) * 1980-02-21 1982-03-09 Iowa State University Research Foundation, Inc. Frequency measuring and monitoring apparatus, methods and systems
US4516206A (en) * 1982-10-21 1985-05-07 Mcevilly Thomas V Post-processing of seismic parameter data based on valid seismic event determination
US4794543A (en) * 1984-12-24 1988-12-27 Hazeltine Corporation Multi level split gate signal processor determining the centroid of a signal
FR2614997B1 (fr) * 1987-05-07 1989-09-01 Inst Francais Du Petrole Methode de prospection sismique permettant une connaissance amelioree des discontinuites geologiques du sous-sol
FR2650676B1 (fr) * 1989-08-04 1991-10-04 Elf Aquitaine Procede de traitement de donnees de sismique reflexion pour l'obtention de coupes sismiques ameliorees
US5278805A (en) * 1992-10-26 1994-01-11 Schlumberger Technology Corporation Sonic well logging methods and apparatus utilizing dispersive wave processing
US5426618A (en) * 1993-05-03 1995-06-20 Chen; Hong-Bin Method of high resolution and high SNR data acquisition for probing using pulse-compression
US6263290B1 (en) * 1995-02-22 2001-07-17 Michael K. Williams Process and machine for signal waveform analysis
US6229316B1 (en) * 1995-09-08 2001-05-08 Advantest Corporation Measuring method by spectrum analyzer
US5933808A (en) * 1995-11-07 1999-08-03 The United States Of America As Represented By The Secretary Of The Navy Method and apparatus for generating modified speech from pitch-synchronous segmented speech waveforms
US5937078A (en) * 1996-04-10 1999-08-10 The United States Of America As Represented By The Secretary Of The Navy Target detection method from partial image of target
FR2747796B1 (fr) * 1996-04-22 1998-07-03 Elf Aquitaine Methode pour la determination des vitesses de migration dans un traitement sismique
US6067569A (en) 1997-07-10 2000-05-23 Microsoft Corporation Fast-forwarding and filtering of network packets in a computer system
US6208587B1 (en) * 1997-07-10 2001-03-27 Pgs Tensor, Inc. Method of detecting seismic events and for detecting and correcting geometry and statics error in seismic data
FR2772137B1 (fr) * 1997-12-08 1999-12-31 Inst Francais Du Petrole Methode de surveillance sismique d'une zone souterraine en cours d'exploitation permettant une meilleure identification d'evenements significatifs

Also Published As

Publication number Publication date
US6598001B1 (en) 2003-07-22
NO332717B1 (no) 2012-12-27
FR2797056A1 (fr) 2001-02-02
EP1074858B1 (fr) 2003-12-03
EP1074858A1 (fr) 2001-02-07
CA2316710A1 (fr) 2001-01-28
NO20003856D0 (no) 2000-07-27
DE60006906T2 (de) 2004-05-19
NO20003856L (no) 2001-01-29
DE60006906D1 (de) 2004-01-15
CA2316710C (fr) 2010-02-23
FR2797056B1 (fr) 2001-09-07

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Legal Events

Date Code Title Description
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B11B Dismissal acc. art. 36, par 1 of ipl - no reply within 90 days to fullfil the necessary requirements