GB2441692A - Method for coherence-filtering of acoustic array signal - Google Patents
Method for coherence-filtering of acoustic array signalInfo
- Publication number
- GB2441692A GB2441692A GB0723967A GB0723967A GB2441692A GB 2441692 A GB2441692 A GB 2441692A GB 0723967 A GB0723967 A GB 0723967A GB 0723967 A GB0723967 A GB 0723967A GB 2441692 A GB2441692 A GB 2441692A
- Authority
- GB
- United Kingdom
- Prior art keywords
- data
- coherence
- processing
- signals
- transformed
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000001914 filtration Methods 0.000 title 1
- 230000001427 coherent effect Effects 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000000717 retained effect Effects 0.000 abstract 1
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
- G01V1/364—Seismic filtering
-
- 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
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
A method waveform processing technique utilizing signal coherence of the array data for processing signals having poor signal-to-noise ratio. Raw waveform data is first transformed into f-k (frequency-wavenumber) domain. A coherence function is then calculated and convolved with the data in the f-k domain, which effectively suppresses non-coherent signals in the data. For the remaining coherent data, the unwanted part is muted and the wanted part is retained and inverse-transformed to yield the coherence-filtered array waveform data. After this processing, small signals that are hidden in the original data are extracted with much enhanced coherence. Subsequent processing of the data yields reliable information about formation acoustic property.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US37607005A | 2005-06-15 | 2005-06-15 | |
PCT/US2006/021922 WO2006138112A2 (en) | 2005-06-15 | 2006-06-06 | Method for coherence-filtering of acoustic array signal |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0723967D0 GB0723967D0 (en) | 2008-01-30 |
GB2441692A true GB2441692A (en) | 2008-03-12 |
GB2441692B GB2441692B (en) | 2009-04-29 |
Family
ID=37570967
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0723967A Active GB2441692B (en) | 2005-06-15 | 2006-06-06 | Method for coherence-filtering of acoustic array signals |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA2610997C (en) |
EA (1) | EA013384B1 (en) |
GB (1) | GB2441692B (en) |
WO (1) | WO2006138112A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103605165A (en) * | 2013-11-29 | 2014-02-26 | 中国神华能源股份有限公司 | Method and device for monitoring earth surface medium objects |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103901474A (en) * | 2014-04-18 | 2014-07-02 | 成都新核中创信息科技有限公司 | Microseism weak signal extracting method based on middle course wavelet threshold analysis |
US20190293823A1 (en) * | 2016-12-14 | 2019-09-26 | Halliburton Energy Services, Inc. | Acoustic logging data processing using waveform amplitude and phase |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2558602B1 (en) * | 1984-01-19 | 1986-05-30 | Petroles Cie Francaise | METHOD FOR OBTAINING AND COMPUTER PROCESSING OF SEISMIC DATA RECORDED FROM AN EXPLORATION WELL |
US5237538A (en) * | 1992-02-20 | 1993-08-17 | Mobil Oil Corporation | Method for removing coherent noise from an array of seismic traces |
US5392213A (en) * | 1992-10-23 | 1995-02-21 | Exxon Production Research Company | Filter for removal of coherent noise from seismic data |
US6427124B1 (en) * | 1997-01-24 | 2002-07-30 | Baker Hughes Incorporated | Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries |
-
2006
- 2006-06-06 EA EA200702585A patent/EA013384B1/en not_active IP Right Cessation
- 2006-06-06 CA CA2610997A patent/CA2610997C/en not_active Expired - Fee Related
- 2006-06-06 WO PCT/US2006/021922 patent/WO2006138112A2/en active Application Filing
- 2006-06-06 GB GB0723967A patent/GB2441692B/en active Active
Non-Patent Citations (1)
Title |
---|
Not yet advised * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103605165A (en) * | 2013-11-29 | 2014-02-26 | 中国神华能源股份有限公司 | Method and device for monitoring earth surface medium objects |
Also Published As
Publication number | Publication date |
---|---|
WO2006138112A3 (en) | 2008-05-08 |
WO2006138112A2 (en) | 2006-12-28 |
CA2610997C (en) | 2013-08-13 |
CA2610997A1 (en) | 2006-12-28 |
GB2441692B (en) | 2009-04-29 |
EA013384B1 (en) | 2010-04-30 |
EA200702585A1 (en) | 2008-10-30 |
GB0723967D0 (en) | 2008-01-30 |
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