GB2348506B - Nuclear magnetic resonance logging - Google Patents

Nuclear magnetic resonance logging

Info

Publication number
GB2348506B
GB2348506B GB0015058A GB0015058A GB2348506B GB 2348506 B GB2348506 B GB 2348506B GB 0015058 A GB0015058 A GB 0015058A GB 0015058 A GB0015058 A GB 0015058A GB 2348506 B GB2348506 B GB 2348506B
Authority
GB
United Kingdom
Prior art keywords
magnetic resonance
nuclear magnetic
resonance logging
logging
nuclear
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 - Fee Related
Application number
GB0015058A
Other versions
GB0015058D0 (en
GB2348506A (en
Inventor
Martin E Poitzsch
Peter Speir
Krishnamurthy Ganesan
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.)
Schlumberger Holdings Ltd
Original Assignee
Schlumberger Holdings Ltd
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
Priority claimed from US09/094,201 external-priority patent/US6255817B1/en
Application filed by Schlumberger Holdings Ltd filed Critical Schlumberger Holdings Ltd
Publication of GB0015058D0 publication Critical patent/GB0015058D0/en
Publication of GB2348506A publication Critical patent/GB2348506A/en
Application granted granted Critical
Publication of GB2348506B publication Critical patent/GB2348506B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • G01V3/18—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
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3607—RF waveform generators, e.g. frequency generators, amplitude-, frequency- or phase modulators or shifters, pulse programmers, digital to analog converters for the RF signal, means for filtering or attenuating of the RF signal
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
    • G01R33/3664—Switching for purposes other than coil coupling or decoupling, e.g. switching between a phased array mode and a quadrature mode, switching between surface coil modes of different geometrical shapes, switching from a whole body reception coil to a local reception coil or switching for automatic coil selection in moving table MR or for changing the field-of-view
    • 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
    • G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
    • G01R33/5612—Parallel RF transmission, i.e. RF pulse transmission using a plurality of independent transmission channels

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Analytical Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB0015058A 1998-06-09 1999-05-14 Nuclear magnetic resonance logging Expired - Fee Related GB2348506B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/094,201 US6255817B1 (en) 1997-06-23 1998-06-09 Nuclear magnetic resonance logging with azimuthal resolution
GB9911228A GB2339024B (en) 1998-06-09 1999-05-14 Nuclear magnetic resonance logging with azimuthal resolution

Publications (3)

Publication Number Publication Date
GB0015058D0 GB0015058D0 (en) 2000-08-09
GB2348506A GB2348506A (en) 2000-10-04
GB2348506B true GB2348506B (en) 2001-09-19

Family

ID=26315545

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0015058A Expired - Fee Related GB2348506B (en) 1998-06-09 1999-05-14 Nuclear magnetic resonance logging

Country Status (1)

Country Link
GB (1) GB2348506B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105888655A (en) * 2016-05-05 2016-08-24 中国海洋石油总公司 While-drilling acoustic wave insulating structure

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6518756B1 (en) 2001-06-14 2003-02-11 Halliburton Energy Services, Inc. Systems and methods for determining motion tool parameters in borehole logging
FR2828736A1 (en) * 2001-08-17 2003-02-21 Innov Pro Device for studying material using NMR comprises permanent magnet and device for creating radio frequency magnetic field in two half-spaces
WO2003016935A2 (en) * 2001-08-17 2003-02-27 Innov-Pro Device for the nmr analysis of a material
US6586932B1 (en) * 2002-10-16 2003-07-01 Schlumberger Technology Corporation Enhanced performance antennas for NMR logging
US7212173B2 (en) * 2003-06-30 2007-05-01 Schlumberger Technology Corporation Flex (or printed) circuit axial coils for a downhole logging tool
CN115579621B (en) * 2022-11-18 2023-03-10 中海油田服务股份有限公司 Antenna structure and electromagnetic wave probe device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5629623A (en) * 1992-07-30 1997-05-13 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling
GB2310500A (en) * 1996-02-23 1997-08-27 Western Atlas Int Inc NMR well logging tool suitable for measurement-while-drilling (MWD)
US5705927A (en) * 1992-07-30 1998-01-06 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling including a shortened or truncated CPMG sequence

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5629623A (en) * 1992-07-30 1997-05-13 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling
US5705927A (en) * 1992-07-30 1998-01-06 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling including a shortened or truncated CPMG sequence
GB2310500A (en) * 1996-02-23 1997-08-27 Western Atlas Int Inc NMR well logging tool suitable for measurement-while-drilling (MWD)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105888655A (en) * 2016-05-05 2016-08-24 中国海洋石油总公司 While-drilling acoustic wave insulating structure
CN105888655B (en) * 2016-05-05 2021-07-06 中国海洋石油集团有限公司 While-drilling sound wave sound insulation structure

Also Published As

Publication number Publication date
GB0015058D0 (en) 2000-08-09
GB2348506A (en) 2000-10-04

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030514

728V Application for restoration filed (sect. 28/1977)
728Y Application for restoration allowed (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170514