EA200601883A1 - Применение измерений, осуществлённых в одном пакете эхосигналов, для коррекции реверберации во втором пакете без использования в нём пары с чередованием фаз - Google Patents

Применение измерений, осуществлённых в одном пакете эхосигналов, для коррекции реверберации во втором пакете без использования в нём пары с чередованием фаз

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Publication number
EA200601883A1
EA200601883A1 EA200601883A EA200601883A EA200601883A1 EA 200601883 A1 EA200601883 A1 EA 200601883A1 EA 200601883 A EA200601883 A EA 200601883A EA 200601883 A EA200601883 A EA 200601883A EA 200601883 A1 EA200601883 A1 EA 200601883A1
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EA
Eurasian Patent Office
Prior art keywords
package
reverberation
reverb
correction
application
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Application number
EA200601883A
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English (en)
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EA011960B1 (ru
Inventor
Дейвид Р. Берд
Даниел Т. Джорджи
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Бейкер Хьюз Инкорпорейтед
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.)
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Application filed by Бейкер Хьюз Инкорпорейтед filed Critical Бейкер Хьюз Инкорпорейтед
Publication of EA200601883A1 publication Critical patent/EA200601883A1/ru
Publication of EA011960B1 publication Critical patent/EA011960B1/ru

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N24/00—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects
    • G01N24/08—Investigating or analyzing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects by using nuclear magnetic resonance
    • G01N24/081—Making measurements of geologic samples, e.g. measurements of moisture, pH, porosity, permeability, tortuosity or viscosity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00—Arrangements or instruments for measuring magnetic variables
    • G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • 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
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/32—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with electron or nuclear magnetic resonance

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Analytical Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

Предлагается использование данных оценки реверберации, создаваемой последовательностями импульсов с коротким временем восстановления (импульсами КПМГ или измененными импульсами КПМГ), для ослабления влияния реверберации в последовательностях обычных или измененных импульсов КПМГ. При помощи предлагаемого способа эффективно устраняется реверберация, которая меняется за период времени, охватываемый парой обычных последовательностей с чередованием пар. За счет частотного возмущения может быть устранена реверберация, вызываемая возбуждающим импульсом и рефокусирующим импульсом.
EA200601883A 2004-04-19 2005-04-19 Способ коррекции сигналов, принимаемых из толщи горных пород при использовании прибора ядерного магнитного резонанса EA011960B1 (ru)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/827,183 US7126333B2 (en) 2004-04-19 2004-04-19 Method and apparatus for correcting ringing in NMR signals
PCT/US2005/013433 WO2005101061A2 (en) 2004-04-19 2005-04-19 Use of measurements made in one echo train to correct ringing in second to avoid use of phase alternated pair in the second

Publications (2)

Publication Number Publication Date
EA200601883A1 true EA200601883A1 (ru) 2007-04-27
EA011960B1 EA011960B1 (ru) 2009-06-30

Family

ID=35095649

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200601883A EA011960B1 (ru) 2004-04-19 2005-04-19 Способ коррекции сигналов, принимаемых из толщи горных пород при использовании прибора ядерного магнитного резонанса

Country Status (5)

Country Link
US (1) US7126333B2 (ru)
CA (1) CA2563698C (ru)
EA (1) EA011960B1 (ru)
GB (1) GB2429296B (ru)
WO (1) WO2005101061A2 (ru)

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Also Published As

Publication number Publication date
GB2429296A (en) 2007-02-21
EA011960B1 (ru) 2009-06-30
WO2005101061A3 (en) 2005-12-15
CA2563698C (en) 2016-04-05
CA2563698A1 (en) 2005-10-27
WO2005101061A2 (en) 2005-10-27
US20050231198A1 (en) 2005-10-20
GB2429296B (en) 2007-10-31
GB0619838D0 (en) 2006-11-15
US7126333B2 (en) 2006-10-24

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MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

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