NO20080311L - Fremgangsmate for smabolge-stoyfjerning pa kontrollert-kilde elektromagnetisk undersokelsesdata - Google Patents

Fremgangsmate for smabolge-stoyfjerning pa kontrollert-kilde elektromagnetisk undersokelsesdata

Info

Publication number
NO20080311L
NO20080311L NO20080311A NO20080311A NO20080311L NO 20080311 L NO20080311 L NO 20080311L NO 20080311 A NO20080311 A NO 20080311A NO 20080311 A NO20080311 A NO 20080311A NO 20080311 L NO20080311 L NO 20080311L
Authority
NO
Norway
Prior art keywords
source electromagnetic
controlled
smoldering
coefficients
decomposition
Prior art date
Application number
NO20080311A
Other languages
English (en)
Inventor
Dennis E Willen
Original Assignee
Exxonmobil Upstream Res Co
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 Exxonmobil Upstream Res Co filed Critical Exxonmobil Upstream Res Co
Publication of NO20080311L publication Critical patent/NO20080311L/no

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/083—Controlled source electromagnetic [CSEM] surveying

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Noise Elimination (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Error Detection And Correction (AREA)

Abstract

Fremgangsmåte for begrensning av støy i et mottakersignal fra en elektromagnetisk undersøkelse med styrt kilde. En diskret wavelettransformasjon utføres på signalet, og de resulterende detaljkoeffisientene trunkeres ved å anvende en valgt terskelverdi, som kan være null. Ytterligere nivåer av dekomponering kan bli utført på tilnærmingskoeffisientene fra det foregående nivået. Etter det siste dekomponeringsnivået gjenoppbygges et støybegrensningsbehandlet signal ved å utføre den inverse wavelettransformasjonen på det siste settet av tilnærmingskoeffisienter kombinert med de tersklede detaljkoeffisientene akkumulert fra alle dekomponeringsnivåer.
NO20080311A 2005-07-28 2008-01-18 Fremgangsmate for smabolge-stoyfjerning pa kontrollert-kilde elektromagnetisk undersokelsesdata NO20080311L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US70320305P 2005-07-28 2005-07-28
PCT/US2006/027192 WO2007018949A2 (en) 2005-07-28 2006-07-11 Method for wavelet denoising of controlled source electromagnetic survey data

Publications (1)

Publication Number Publication Date
NO20080311L true NO20080311L (no) 2008-02-20

Family

ID=36613506

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20080311A NO20080311L (no) 2005-07-28 2008-01-18 Fremgangsmate for smabolge-stoyfjerning pa kontrollert-kilde elektromagnetisk undersokelsesdata

Country Status (12)

Country Link
US (1) US20090103395A1 (no)
EP (1) EP1922567B1 (no)
AT (1) ATE479118T1 (no)
AU (1) AU2006276732B2 (no)
BR (1) BRPI0614103A2 (no)
CA (1) CA2616390C (no)
DE (1) DE602006016451D1 (no)
EA (1) EA011104B1 (no)
MX (1) MX2008001243A (no)
MY (1) MY143284A (no)
NO (1) NO20080311L (no)
WO (1) WO2007018949A2 (no)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2450641B (en) 2006-01-30 2010-06-09 Exxonmobil Upstream Res Co Method for spatial filtering of electromagnetic survey data
US7675812B2 (en) * 2008-06-30 2010-03-09 Pgs Geophysical As Method for attenuation of multiple reflections in seismic data
AU2009296959B2 (en) * 2008-09-24 2014-08-07 Exxonmobil Upstream Research Company Systems and methods for subsurface electromagnetic mapping
US8773949B2 (en) * 2009-11-03 2014-07-08 Westerngeco L.L.C. Removing noise from a seismic measurement
JP5596982B2 (ja) * 2010-01-08 2014-10-01 キヤノン株式会社 電磁波の測定装置及び方法
US20120179372A1 (en) 2010-07-22 2012-07-12 Alexander Edward Kalish Collecting Control Source Electromagnetic Signals
US9128206B2 (en) * 2010-12-23 2015-09-08 Westerngeco L.L.C. Removing noise from a seismic measurement
MX347881B (es) * 2012-08-28 2017-05-17 Halliburton Energy Services Inc Aparato de transformación de medición, métodos y sistemas.
CN103135133A (zh) * 2013-01-25 2013-06-05 中国石油天然气股份有限公司 一种多分量地震资料的矢量降噪方法及设备
CN105487115A (zh) * 2014-09-17 2016-04-13 中国石油化工股份有限公司 一种基于小波变换的高频延拓方法
CN106291680A (zh) * 2015-05-29 2017-01-04 中国石油化工股份有限公司 一种数据低频延拓方法
CN106932828A (zh) * 2015-12-30 2017-07-07 中国石油天然气股份有限公司 大地勘探方法及装置
CN105652166B (zh) * 2016-03-01 2018-04-17 国网江西省电力科学研究院 一种用于局放在线监测的加权阈值小波降噪方法
CN107203004B (zh) * 2016-03-16 2019-10-11 中国石油化工股份有限公司 一种通过时变频谱延拓提高分辨率的方法
WO2018118744A1 (en) * 2016-12-19 2018-06-28 Knowles Electronics, Llc Methods and systems for reducing false alarms in keyword detection
CN106772601B (zh) * 2016-12-21 2018-10-23 成都理工大学 一种基于叠前地震数据的裂缝储层快速预测方法
CN106871891B (zh) * 2017-01-16 2020-09-01 中北大学 一种基于累加累减混合微分器的信号去噪方法
CN107121705B (zh) * 2017-04-28 2018-10-12 中南大学 一种基于自动反相校正和峰度值比较的探地雷达回波信号去噪算法
CN106911410B (zh) * 2017-05-02 2020-10-23 广东工业大学 一种通信主用户感知方法及系统
CN110046476B (zh) * 2019-06-05 2020-10-16 厦门大学 滚动轴承故障的三元二进分形小波稀疏诊断方法
CN111144230B (zh) * 2019-12-06 2023-06-20 天津大学 一种基于vmd的时域载荷信号的去噪方法
CN111585663B (zh) * 2020-04-20 2022-04-08 杭州华立电力系统工程有限公司 低压电力线载波通信特征干扰噪声的复现方法
CN111474594B (zh) * 2020-05-27 2021-08-17 长安大学 一种三维时间域航空电磁快速反演方法
CN111898567B (zh) * 2020-08-04 2023-11-07 昆山九毫米电子科技有限公司 基于经验小波变换的弹丸激波信号噪声抑制方法
CN111912879B (zh) * 2020-08-11 2023-04-25 长沙学院 一种基于最优小波基的地质雷达弱反射信号识别方法
CN112213782B (zh) * 2020-09-29 2022-03-04 中国石油大学(北京) 分相位地震数据的处理方法、装置和服务器
CN112259069B (zh) * 2020-10-21 2023-03-14 上海协格空调工程有限公司 一种动态主动降噪方法及空调设备
CN113341469B (zh) * 2021-06-02 2022-07-01 山东大学 一种半航空瞬变电磁数据校正方法及系统
CN114035238A (zh) * 2021-10-18 2022-02-11 西南交通大学 基于双树复小波变换的超前地质预报方法
CN114222241A (zh) * 2021-10-29 2022-03-22 中国石油大学(华东) 一种基于小波变换模极大值的无线定位方法
CN114510976B (zh) * 2022-02-15 2024-05-24 杭州电子科技大学 基于双变量阈值函数的呼吸信号去噪方法及装置
CN114814963B (zh) * 2022-03-03 2023-03-21 吉林大学 一种基于b样条抽道的时间域电磁数据甚低频噪声压制方法
CN115017933B (zh) * 2022-03-11 2024-04-05 吉林大学 基于类周期性小波系数恢复的核磁信号尖峰噪声抑制方法
CN114861720B (zh) * 2022-04-29 2024-09-24 中南大学 基于联合稀疏模型的海洋可控源电磁数据降噪方法及系统
CN114924328B (zh) * 2022-05-24 2024-05-24 山东大学 一种带垂直磁场参考道的城市人工源电磁勘探方法及系统
CN115712154B (zh) * 2022-11-02 2023-11-03 中国人民解放军92859部队 一种探测船载重力测量粗差的移位双小波迭代方法
CN116548928B (zh) * 2023-07-11 2023-09-08 西安浩阳志德医疗科技有限公司 一种基于互联网的护理服务系统
CN117520752B (zh) * 2024-01-05 2024-04-12 梁山公用水务有限公司 基于大数据的水利工程信息管理方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4244223A (en) * 1979-07-10 1981-01-13 Geiger Allen R System and method for geophysical prospecting by measurement of earth tides
US4617518A (en) * 1983-11-21 1986-10-14 Exxon Production Research Co. Method and apparatus for offshore electromagnetic sounding utilizing wavelength effects to determine optimum source and detector positions
US5237538A (en) * 1992-02-20 1993-08-17 Mobil Oil Corporation Method for removing coherent noise from an array of seismic traces
US5287328A (en) * 1993-01-28 1994-02-15 Mobil Oil Corporation Method for removing random source and receiver noise from seismic traces
US5619998A (en) * 1994-09-23 1997-04-15 General Electric Company Enhanced method for reducing ultrasound speckle noise using wavelet transform
US5673191A (en) * 1995-04-10 1997-09-30 Atlantic Richfield Company Method and apparatus for identifying geological structures using wavelet analysis of potential fields
US5740036A (en) * 1995-09-15 1998-04-14 Atlantic Richfield Company Method and apparatus for analyzing geological data using wavelet analysis
RU2102781C1 (ru) * 1995-11-02 1998-01-20 Сибирский научно-исследовательский институт геологии, геофизики и минерального сырья Способ геологической разведки нефти и газа
US5963507A (en) * 1998-05-13 1999-10-05 Western Atlas International, Inc. Method for improving the accuracy of ocean bottom reflectivity estimations using the inverse backus filter
US6182018B1 (en) * 1998-08-25 2001-01-30 Ford Global Technologies, Inc. Method and apparatus for identifying sound in a composite sound signal
US6741739B1 (en) * 2000-05-03 2004-05-25 Itt Manufacturing Enterprises Method and apparatus for improving signal to noise ratio using wavelet decomposition and frequency thresholding
US6556922B2 (en) * 2001-05-22 2003-04-29 Conoco Inc. Non-stationary filter design and application for seismic signals
RU2208818C2 (ru) * 2001-07-27 2003-07-20 Саратовская геофизическая экспедиция Способ электроразведки при поисках нефтегазовых месторождений
US7099417B2 (en) * 2001-12-28 2006-08-29 Agilent Technologies, Inc. Trace video filtering using wavelet de-noising techniques
US7502690B2 (en) * 2005-02-18 2009-03-10 Bp Corporation North America Inc. System and method for using time-distance characteristics in acquisition, processing, and imaging of t-CSEM data

Also Published As

Publication number Publication date
CA2616390A1 (en) 2007-02-15
EA011104B1 (ru) 2008-12-30
DE602006016451D1 (de) 2010-10-07
EP1922567A4 (en) 2009-05-06
CA2616390C (en) 2014-04-08
ATE479118T1 (de) 2010-09-15
US20090103395A1 (en) 2009-04-23
AU2006276732B2 (en) 2011-04-28
MY143284A (en) 2011-04-15
EA200800446A1 (ru) 2008-06-30
EP1922567A2 (en) 2008-05-21
WO2007018949A3 (en) 2007-09-20
BRPI0614103A2 (pt) 2012-11-20
MX2008001243A (es) 2008-03-24
WO2007018949A2 (en) 2007-02-15
EP1922567B1 (en) 2010-08-25
AU2006276732A1 (en) 2007-02-15

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