GB2434875B - System and methods for T1-based logging - Google Patents

System and methods for T1-based logging

Info

Publication number
GB2434875B
GB2434875B GB0706262A GB0706262A GB2434875B GB 2434875 B GB2434875 B GB 2434875B GB 0706262 A GB0706262 A GB 0706262A GB 0706262 A GB0706262 A GB 0706262A GB 2434875 B GB2434875 B GB 2434875B
Authority
GB
United Kingdom
Prior art keywords
methods
based logging
logging
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
GB0706262A
Other versions
GB0706262D0 (en
GB2434875A (en
Inventor
Ridvan Akkurt
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
Halliburton Energy Services Inc
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 Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Priority to GB0706262A priority Critical patent/GB2434875B/en
Priority claimed from GB0606829A external-priority patent/GB2422201B/en
Publication of GB0706262D0 publication Critical patent/GB0706262D0/en
Publication of GB2434875A publication Critical patent/GB2434875A/en
Application granted granted Critical
Publication of GB2434875B publication Critical patent/GB2434875B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G01R33/50—NMR imaging systems based on the determination of relaxation times, e.g. T1 measurement by IR sequences; T2 measurement by multiple-echo sequences
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB0706262A 2003-10-03 2004-10-01 System and methods for T1-based logging Expired - Fee Related GB2434875B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0706262A GB2434875B (en) 2003-10-03 2004-10-01 System and methods for T1-based logging

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US50844203P 2003-10-03 2003-10-03
GB0706262A GB2434875B (en) 2003-10-03 2004-10-01 System and methods for T1-based logging
GB0606829A GB2422201B (en) 2003-10-03 2004-10-01 System And Methods For T1-Based Logging

Publications (3)

Publication Number Publication Date
GB0706262D0 GB0706262D0 (en) 2007-05-09
GB2434875A GB2434875A (en) 2007-08-08
GB2434875B true GB2434875B (en) 2008-04-02

Family

ID=39149201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0706262A Expired - Fee Related GB2434875B (en) 2003-10-03 2004-10-01 System and methods for T1-based logging

Country Status (1)

Country Link
GB (1) GB2434875B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2339914A (en) * 1998-05-26 2000-02-09 Schlumberger Ltd NMR well logging
US6032101A (en) * 1997-04-09 2000-02-29 Schlumberger Technology Corporation Methods for evaluating formations using NMR and other logs

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6032101A (en) * 1997-04-09 2000-02-29 Schlumberger Technology Corporation Methods for evaluating formations using NMR and other logs
GB2339914A (en) * 1998-05-26 2000-02-09 Schlumberger Ltd NMR well logging

Also Published As

Publication number Publication date
GB0706262D0 (en) 2007-05-09
GB2434875A (en) 2007-08-08

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Legal Events

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

Effective date: 20171001