GB2348506B - Nuclear magnetic resonance logging - Google Patents
Nuclear magnetic resonance loggingInfo
- 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
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)
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)
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)
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)
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 |
-
1999
- 1999-05-14 GB GB0015058A patent/GB2348506B/en not_active Expired - Fee Related
Patent Citations (3)
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)
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 |