NO994660D0 - Pulssekvens og fremgangsmaate for undertrykkelse av magnetoakustiske artifakter i NMR-data - Google Patents

Pulssekvens og fremgangsmaate for undertrykkelse av magnetoakustiske artifakter i NMR-data

Info

Publication number
NO994660D0
NO994660D0 NO994660A NO994660A NO994660D0 NO 994660 D0 NO994660 D0 NO 994660D0 NO 994660 A NO994660 A NO 994660A NO 994660 A NO994660 A NO 994660A NO 994660 D0 NO994660 D0 NO 994660D0
Authority
NO
Norway
Prior art keywords
magnetoacoustic
artifacts
suppression
procedure
pulse sequence
Prior art date
Application number
NO994660A
Other languages
English (en)
Other versions
NO327598B1 (no
NO994660L (no
Inventor
Manfred G Prammer
Original Assignee
Numar Corp
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 Numar Corp filed Critical Numar Corp
Publication of NO994660D0 publication Critical patent/NO994660D0/no
Publication of NO994660L publication Critical patent/NO994660L/no
Publication of NO327598B1 publication Critical patent/NO327598B1/no

Links

Classifications

    • 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
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5617—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using RF refocusing, e.g. RARE
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Pathology (AREA)
  • Geophysics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Remote Sensing (AREA)
  • Immunology (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Error Detection And Correction (AREA)
NO19994660A 1997-03-26 1999-09-24 Fremgangsmate for bruk av pulssekvenser for undertrykkelse av magnetoakustiske artifakter i NMR-data. NO327598B1 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/826,132 US6204663B1 (en) 1997-03-26 1997-03-26 Pulse sequence and method for suppression of magneto-acoustic artifacts in NMR data
PCT/US1998/005703 WO1998043064A1 (en) 1997-03-26 1998-03-25 Pulse sequence and method for suppression of magneto-acoustic artifacts in nmr data

Publications (3)

Publication Number Publication Date
NO994660D0 true NO994660D0 (no) 1999-09-24
NO994660L NO994660L (no) 1999-11-15
NO327598B1 NO327598B1 (no) 2009-08-31

Family

ID=25245792

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19994660A NO327598B1 (no) 1997-03-26 1999-09-24 Fremgangsmate for bruk av pulssekvenser for undertrykkelse av magnetoakustiske artifakter i NMR-data.

Country Status (6)

Country Link
US (1) US6204663B1 (no)
EP (2) EP0970362B1 (no)
AR (1) AR012188A1 (no)
DE (2) DE69841513D1 (no)
NO (1) NO327598B1 (no)
WO (1) WO1998043064A1 (no)

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US6121774A (en) * 1998-06-22 2000-09-19 Schlumberger Technology Corporation Method for eliminating ringing during a nuclear magnetic resonance measurement
US6326784B1 (en) 1998-11-05 2001-12-04 Schlumberger Technology Corporation Nuclear magnetic resonance logging with azimuthal resolution using gradient coils
US6891369B2 (en) * 1998-08-13 2005-05-10 Schlumberger Technology Corporation Nuclear magnetic resonance method and logging apparatus for fluid analysis
US6570381B1 (en) * 1999-03-25 2003-05-27 Schlumberger Technology Corporation Nuclear magnetic resonance well logging method and apparatus
US6541969B2 (en) * 1999-12-15 2003-04-01 Halliburton Energy Services, Inc. Method and apparatus for improving the vertical resolution of NMR logs
US6600315B1 (en) * 2000-03-03 2003-07-29 Schlumberger Technology Corporation Method for improving resolution of nuclear magnetic resonance measurements by combining low resolution high accuracy measurements with high resolution low accuracy measurements
US6459262B1 (en) * 2000-04-25 2002-10-01 Baker Hughes Incorporated Toroidal receiver for NMR MWD
US6498484B1 (en) * 2000-06-15 2002-12-24 Schlumberger Technology Corporation Method for reducing ringing in nuclear magnetic resonance well logging instruments
US6388441B1 (en) 2000-10-18 2002-05-14 Baker Hughes Incorporated Method for processing NMR data without phase-alternating-pair (PAP) averaging
US6525534B2 (en) 2001-06-15 2003-02-25 Halliburton Energy Services, Inc. System and methods for NMR signal processing without phase alternated pair stacking
US6956370B2 (en) * 2002-10-04 2005-10-18 Schlumberger Technology Corporation Method for reducing ringing in NMR measurements by combining NMR signals having a spin echo and spurious signal component
WO2004090557A2 (en) * 2003-04-01 2004-10-21 Halliburton Energy Services, Inc. Abnormal pressure determination using nuclear magnetic resonance logging
EP1642156B1 (en) * 2003-05-02 2020-03-04 Halliburton Energy Services, Inc. Systems and methods for nmr logging
US6897651B2 (en) * 2003-05-15 2005-05-24 Baker Hughes Incorporated Method for eliminating effects of acoustic excitations in NMR data
GB2404026B (en) * 2003-07-14 2005-09-21 Rolls Royce Plc Method for filtering spurious resonances from an NMR dataset
US7301337B2 (en) * 2003-09-30 2007-11-27 Baker Hughes Incorporated Frequency dithering to avoid excitation pulse ringing
GB2422201B (en) * 2003-10-03 2007-06-06 Halliburton Energy Serv Inc System And Methods For T1-Based Logging
US7026814B2 (en) * 2003-12-19 2006-04-11 Schlumberger Technology Corporation Tuning of nuclear magnetic resonance logging tools
US7126333B2 (en) * 2004-04-19 2006-10-24 Baker Hughes Incorporated Method and apparatus for correcting ringing in NMR signals
US7034529B2 (en) * 2004-06-10 2006-04-25 Baker Hughes Incorporated Phase-alternated Carr-Purcell NMR echo sequence
US7336071B2 (en) 2005-08-26 2008-02-26 Baker Hughes Incorporated Enhancement of NMR vertical resolution using walsh function based inversion
US7253618B1 (en) * 2006-12-19 2007-08-07 Schlumberger Technology Corporation Method for determining more accurate diffusion coefficient distributions of reservoir fluids using Bi-polar pulsed field gradients
WO2009048781A1 (en) * 2007-10-12 2009-04-16 Exxonmobil Upstream Research Company Non-destructive determination of the pore size distribution and the distribution of fluid flow velocities
JP5827989B2 (ja) 2010-03-31 2015-12-02 リージェンツ オブ ザ ユニバーシティ オブ ミネソタ 放射状ｍｒｉデータに対するオシログラム・フィルタリング方法
US9638673B2 (en) * 2012-10-18 2017-05-02 Olympus Scientific Solutions Americas Inc. Ultrasonic testing instrument with dithery pulsing
EP3052969A1 (en) * 2013-12-13 2016-08-10 Halliburton Energy Services, Inc. Single-transient phase cycling during spin echo acquisition
US10215829B2 (en) 2016-04-29 2019-02-26 Schlumberger Technology Corporation Use of echo shapes in nuclear magnetic resonance log data acquisition and quality control
EP3759524A4 (en) 2018-03-01 2021-12-08 Services Pétroliers Schlumberger NUCLEAR MAGNETIC RESONANCE DATA ACQUISITION SYSTEM

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US4728892A (en) 1985-08-13 1988-03-01 Shell Oil Company NMR imaging of materials
US4710713A (en) 1986-03-11 1987-12-01 Numar Corporation Nuclear magnetic resonance sensing apparatus and techniques
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US5055787A (en) 1986-08-27 1991-10-08 Schlumberger Technology Corporation Borehole measurement of NMR characteristics of earth formations
US4933638A (en) 1986-08-27 1990-06-12 Schlumber Technology Corp. Borehole measurement of NMR characteristics of earth formations, and interpretations thereof
US4717877A (en) 1986-09-25 1988-01-05 Numar Corporation Nuclear magnetic resonance sensing apparatus and techniques
US4717878A (en) 1986-09-26 1988-01-05 Numar Corporation Nuclear magnetic resonance sensing apparatus and techniques
US5350925A (en) 1988-12-08 1994-09-27 Schlumberger Technology Corporation Methods for determining values for earth formation properties
US5212447A (en) 1990-12-03 1993-05-18 Numar Corporation Apparatus and technique for nmr diffusion measurement
DE69123260T2 (de) 1990-12-05 1997-06-12 Numar Corp., Malvern, Pa. Anordnung zum nmr-messen eines bohrlochs während dessen bohrens
US5309098A (en) 1991-05-16 1994-05-03 Numar Corporation Nuclear magnetic resonance detection of geologic structures
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US5387865A (en) 1991-09-20 1995-02-07 Exxon Research And Engineering Company Permeability determination from NMR relaxation measurements for fluids in porous media
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US5379216A (en) 1992-05-27 1995-01-03 Schlumberger Technology Corporation Method and apparatus for producing a new output record medium illustrating a quantitative description in the volume dimension of mud filtrate invasion into permeable zones of a formation in a wellbore
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US5497087A (en) 1994-10-20 1996-03-05 Shell Oil Company NMR logging of natural gas reservoirs
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US5680043A (en) 1995-03-23 1997-10-21 Schlumberger Technology Corporation Nuclear magnetic resonance technique for determining gas effect with borehole logging tools
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Also Published As

Publication number Publication date
DE69838782D1 (de) 2008-01-10
EP0970362B1 (en) 2007-11-28
EP0970362A1 (en) 2000-01-12
NO327598B1 (no) 2009-08-31
US6204663B1 (en) 2001-03-20
DE69838782T2 (de) 2008-04-24
DE69841513D1 (de) 2010-04-01
EP0970362A4 (en) 2002-07-03
WO1998043064A1 (en) 1998-10-01
EP1898235B1 (en) 2010-02-17
NO994660L (no) 1999-11-15
EP1898235A1 (en) 2008-03-12
AR012188A1 (es) 2000-09-27

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