DE69838782D1 - Verfahren zur unterdrückung von magneto-akustischen artefakten in kernresonanzdaten - Google Patents

Verfahren zur unterdrückung von magneto-akustischen artefakten in kernresonanzdaten

Info

Publication number
DE69838782D1
DE69838782D1 DE69838782T DE69838782T DE69838782D1 DE 69838782 D1 DE69838782 D1 DE 69838782D1 DE 69838782 T DE69838782 T DE 69838782T DE 69838782 T DE69838782 T DE 69838782T DE 69838782 D1 DE69838782 D1 DE 69838782D1
Authority
DE
Germany
Prior art keywords
magneto
suppressing
acoustic artifacts
resonant data
core resonant
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.)
Expired - Lifetime
Application number
DE69838782T
Other languages
English (en)
Other versions
DE69838782T2 (de
Inventor
Manfred G Prammer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Energy Services Inc
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 DE69838782D1 publication Critical patent/DE69838782D1/de
Application granted granted Critical
Publication of DE69838782T2 publication Critical patent/DE69838782T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
DE69838782T 1997-03-26 1998-03-25 Verfahren zur unterdrückung von magnetoakustischen artefakten in kernresonanzdaten Expired - Lifetime DE69838782T2 (de)

Applications Claiming Priority (3)

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
US826132 1997-03-26
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 (2)

Publication Number Publication Date
DE69838782D1 true DE69838782D1 (de) 2008-01-10
DE69838782T2 DE69838782T2 (de) 2008-04-24

Family

ID=25245792

Family Applications (2)

Application Number Title Priority Date Filing Date
DE69841513T Expired - Lifetime DE69841513D1 (de) 1997-03-26 1998-03-25 Verfahren zur NMR-Bohrlochmessung
DE69838782T Expired - Lifetime DE69838782T2 (de) 1997-03-26 1998-03-25 Verfahren zur unterdrückung von magnetoakustischen artefakten in kernresonanzdaten

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE69841513T Expired - Lifetime DE69841513D1 (de) 1997-03-26 1998-03-25 Verfahren zur NMR-Bohrlochmessung

Country Status (6)

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

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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
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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
US6954066B2 (en) * 2003-04-01 2005-10-11 Halliburton Energy Services, Inc. Abnormal pressure determination using nuclear magnetic resonance logging
WO2004099817A2 (en) * 2003-05-02 2004-11-18 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
CA2828175A1 (en) 2003-10-03 2005-04-21 Halliburton Energy Services, 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
CA2701762C (en) * 2007-10-12 2016-06-21 Robert D. Nielsen Non-destructive determination of the pore size distribution and the distribution of fluid flow velocities
WO2011123647A1 (en) 2010-03-31 2011-10-06 Regents Of The University Of Minnesota Method of oscillogram filtering for radial mri data
US9638673B2 (en) * 2012-10-18 2017-05-02 Olympus Scientific Solutions Americas Inc. Ultrasonic testing instrument with dithery pulsing
MX2016006258A (es) * 2013-12-13 2016-07-26 Halliburton Energy Services Inc Ciclos de fase transitoria unica durante la adquisicion de eco de espin.
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
US11294093B2 (en) 2018-03-01 2022-04-05 Schlumberger Technology Corporation 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
US4717876A (en) 1986-08-13 1988-01-05 Numar NMR magnet system for well logging
US4933638A (en) 1986-08-27 1990-06-12 Schlumber Technology Corp. Borehole measurement of NMR characteristics of earth formations, and interpretations thereof
US5055788A (en) 1986-08-27 1991-10-08 Schlumberger Technology Corporation Borehole measurement of NMR characteristics of earth formations
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US5212447A (en) 1990-12-03 1993-05-18 Numar Corporation Apparatus and technique for nmr diffusion measurement
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US5389877A (en) * 1991-11-27 1995-02-14 Schlumberger Technology Corporation Nuclear magnetic resonance pulse sequences for determining bound fluid volume
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US5565775A (en) 1995-06-23 1996-10-15 Exxon Research And Engineering Company Producible fluid volumes in porous media determined by pulsed field gradient nuclear magnetic resonance
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Also Published As

Publication number Publication date
DE69841513D1 (de) 2010-04-01
EP0970362A4 (de) 2002-07-03
AR012188A1 (es) 2000-09-27
EP1898235A1 (de) 2008-03-12
NO994660D0 (no) 1999-09-24
WO1998043064A1 (en) 1998-10-01
US6204663B1 (en) 2001-03-20
EP0970362A1 (de) 2000-01-12
DE69838782T2 (de) 2008-04-24
EP0970362B1 (de) 2007-11-28
EP1898235B1 (de) 2010-02-17
NO327598B1 (no) 2009-08-31
NO994660L (no) 1999-11-15

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: HALLIBURTON ENERGY SERVICES, INC., DALLAS, TEX, US

8364 No opposition during term of opposition