MXPA03000767A - Estimacion de dispersion de alta resolucion en la actividad acustica de un pozo. - Google Patents

Estimacion de dispersion de alta resolucion en la actividad acustica de un pozo.

Info

Publication number
MXPA03000767A
MXPA03000767A MXPA03000767A MXPA03000767A MXPA03000767A MX PA03000767 A MXPA03000767 A MX PA03000767A MX PA03000767 A MXPA03000767 A MX PA03000767A MX PA03000767 A MXPA03000767 A MX PA03000767A MX PA03000767 A MXPA03000767 A MX PA03000767A
Authority
MX
Mexico
Prior art keywords
subspace
slowness
test vector
test
signals
Prior art date
Application number
MXPA03000767A
Other languages
English (en)
Inventor
Georgios L Varsamis
Original Assignee
Halliburton Energy Serv 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 Halliburton Energy Serv Inc filed Critical Halliburton Energy Serv Inc
Publication of MXPA03000767A publication Critical patent/MXPA03000767A/es

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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)

Abstract

La especificacion expone una tecnica de procesamiento de senal aplicable en aparatos de actividad acustica. El metodo envuelve el recibir un conjunto de senales acusticas y convertirlas en su representacion de dominio de frecuencia. Los valores de las representaciones de dominio de frecuencia a lo largo de de las frecuencias constantes son correlacionados para producir una matriz de correlacion. Los vectores y valores Eigen de la matriz de correlacion son determinados, y los vectores Eigen correspondiendo a las senakles de interes son removidos para crear un sub-espacio. Por lo tanto, una serie de vectores de prueba, cuyos vectores de prueba envuelven una serie de valores de lentitud estimada, son aplicados al vector del sub-espacio. Si el vector de prueba representa a o puede ser representado por el sub-espacio, entonces la lentitud estimada comprendida en los vectores de prueba representa un ruido del sistema y no es el valor correcto para la formacion. Mas sin embargo, el vector de prueba no representa al sub-espacio, entonces la lentitud comprendida en el vector de prueba se aproxima a la lentitud actual de la formacion.
MXPA03000767A 2002-01-24 2003-01-24 Estimacion de dispersion de alta resolucion en la actividad acustica de un pozo. MXPA03000767A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/056,747 US6766252B2 (en) 2002-01-24 2002-01-24 High resolution dispersion estimation in acoustic well logging

Publications (1)

Publication Number Publication Date
MXPA03000767A true MXPA03000767A (es) 2004-10-29

Family

ID=22006346

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA03000767A MXPA03000767A (es) 2002-01-24 2003-01-24 Estimacion de dispersion de alta resolucion en la actividad acustica de un pozo.

Country Status (7)

Country Link
US (1) US6766252B2 (es)
AU (1) AU2003200065A1 (es)
BR (1) BR0302683A (es)
CA (1) CA2416930A1 (es)
GB (1) GB2388429A (es)
MX (1) MXPA03000767A (es)
NO (1) NO20030354L (es)

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US7075215B2 (en) * 2003-07-03 2006-07-11 Pathfinder Energy Services, Inc. Matching layer assembly for a downhole acoustic sensor
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US7039524B2 (en) * 2004-02-20 2006-05-02 Pathfinder Energy Services, Inc. Shear wave velocity determination using multi-pole wave
US7643374B2 (en) * 2004-02-27 2010-01-05 Schlumberger Technology Corporation Slowness-frequency projection display and animation
US7739049B2 (en) * 2004-05-05 2010-06-15 Halliburton Energy Services, Inc. Method and apparatus for multi-mode signal processing
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US7392135B2 (en) * 2005-12-30 2008-06-24 Halliburton Energy Services Inc. Adaptive equalization of downhole acoustic receivers
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US8117907B2 (en) * 2008-12-19 2012-02-21 Pathfinder Energy Services, Inc. Caliper logging using circumferentially spaced and/or angled transducer elements
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US8625390B2 (en) 2010-08-18 2014-01-07 Schlumberger Technology Corporation Acoustic waveform stacking using azimuthal and/or standoff binning
CN103388473B (zh) * 2012-05-10 2016-04-13 中国石油集团长城钻探工程有限公司 在声波测井中消除直达波干扰的方法、系统及声波测井仪
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GB2512391B (en) * 2013-03-28 2020-08-12 Reeves Wireline Tech Ltd Improved borehole log data processing methods
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BR112017012769A2 (pt) 2015-01-13 2017-12-26 Halliburton Energy Services Inc método e sistema para detectar uma ou mais fontes acústicas subterrâneas.
US11112519B2 (en) * 2016-04-01 2021-09-07 Halliburton Energy Services, Inc. Automatic slowness-frequency range determination for advanced borehole sonic data processing
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Also Published As

Publication number Publication date
GB0301352D0 (en) 2003-02-19
US6766252B2 (en) 2004-07-20
AU2003200065A8 (en) 2010-04-22
NO20030354D0 (no) 2003-01-23
AU2003200065A1 (en) 2003-08-14
US20030139884A1 (en) 2003-07-24
GB2388429A (en) 2003-11-12
NO20030354L (no) 2003-07-25
BR0302683A (pt) 2004-08-24
CA2416930A1 (en) 2003-07-24

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