EG22906A - Nuclear magnetic resonance logging with azimuthal resolution using gradient - Google Patents

Nuclear magnetic resonance logging with azimuthal resolution using gradient

Info

Publication number
EG22906A
EG22906A EG91899A EG91899A EG22906A EG 22906 A EG22906 A EG 22906A EG 91899 A EG91899 A EG 91899A EG 91899 A EG91899 A EG 91899A EG 22906 A EG22906 A EG 22906A
Authority
EG
Egypt
Prior art keywords
gradient
magnetic resonance
nuclear magnetic
resonance logging
azimuthal resolution
Prior art date
Application number
EG91899A
Other languages
English (en)
Inventor
Ganesan Krishnamurthy
Original Assignee
Schlumberger Holdings
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 US09/186,951 external-priority patent/US6326784B1/en
Application filed by Schlumberger Holdings filed Critical Schlumberger Holdings
Application granted granted Critical
Publication of EG22906A publication Critical patent/EG22906A/xx

Links

Classifications

    • 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
    • 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
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
EG91899A 1998-07-30 1999-07-27 Nuclear magnetic resonance logging with azimuthal resolution using gradient EG22906A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US9468098P 1998-07-30 1998-07-30
US09/186,951 US6326784B1 (en) 1998-11-05 1998-11-05 Nuclear magnetic resonance logging with azimuthal resolution using gradient coils

Publications (1)

Publication Number Publication Date
EG22906A true EG22906A (en) 2003-10-30

Family

ID=26789138

Family Applications (1)

Application Number Title Priority Date Filing Date
EG91899A EG22906A (en) 1998-07-30 1999-07-27 Nuclear magnetic resonance logging with azimuthal resolution using gradient

Country Status (8)

Country Link
EP (1) EP0981062A3 (no)
CN (1) CN1249436A (no)
AR (1) AR019488A1 (no)
AU (1) AU737283B2 (no)
CA (1) CA2277662C (no)
EG (1) EG22906A (no)
ID (1) ID23708A (no)
NO (1) NO993690L (no)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6429653B1 (en) * 1999-02-09 2002-08-06 Baker Hughes Incorporated Method and apparatus for protecting a sensor in a drill collar
US7295005B2 (en) 2001-05-30 2007-11-13 Baker Hughes Incorporated Azimuthal NMR imaging while drilling
US6937013B2 (en) * 2002-06-19 2005-08-30 Schlumberger Technology Corporation NMR tool for making formation evaluation measurements using gradient echoes
US7027926B2 (en) * 2004-04-19 2006-04-11 Pathfinder Energy Services, Inc. Enhanced measurement of azimuthal dependence of subterranean parameters
US7821260B2 (en) * 2005-03-18 2010-10-26 Baker Hughes Incorporated NMR echo train compression using only NMR signal matrix multiplication to provide a lower transmission bit parametric representation from which estimate values of earth formation properties are obtained
CN102928888A (zh) * 2006-09-15 2013-02-13 哈里伯顿能源服务公司 用于井下器具的多轴天线和方法
CN101536252B (zh) 2006-09-15 2012-12-05 哈里伯顿能源服务公司 用于井下器具的多轴天线和方法
US8117018B2 (en) * 2008-01-25 2012-02-14 Baker Hughes Incorporated Determining structural dip and azimuth from LWD resistivity measurements in anisotropic formations
US8324895B2 (en) 2009-01-23 2012-12-04 Baker Hughes Incorporated MWD/LWD NMR imaging with long echo trains
US8373412B2 (en) 2009-01-23 2013-02-12 Baker Hughes Incorporated NMR-LWD imaging tool
US8195400B2 (en) 2009-05-08 2012-06-05 Smith International, Inc. Directional resistivity imaging using harmonic representations
US8271199B2 (en) 2009-12-31 2012-09-18 Smith International, Inc. Binning method for borehole imaging
US8600115B2 (en) 2010-06-10 2013-12-03 Schlumberger Technology Corporation Borehole image reconstruction using inversion and tool spatial sensitivity functions
GB2533228B (en) * 2013-08-30 2017-03-22 Halliburton Energy Services Inc Downhole nuclear magnetic resonance (NMR) tool with transversal-dipole antenna configuration
CN105940185A (zh) * 2013-12-08 2016-09-14 普拉德研究及开发股份有限公司 使用核磁共振进行的井下流体监测
US10114142B2 (en) * 2015-12-18 2018-10-30 Schlumberger Technology Corporation Imaging subterranean formations and features using multicoil NMR measurements
US10605950B2 (en) 2016-04-20 2020-03-31 Halliburton Energy Services, Inc. Downhole formation evaluation using nuclear magnetic resonance inversion matrix reduction
CA3057064C (en) * 2017-06-28 2022-07-19 Halliburton Energy Services, Inc. Constructing nuclear magnetic resonance (nmr) devices based on cost and structural constraints
CN115234219B (zh) * 2022-08-16 2024-08-16 中国海洋石油集团有限公司 一种核磁共振探头及井下作业工具

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4769602A (en) * 1986-07-02 1988-09-06 Shell Oil Company Determining multiphase saturations by NMR imaging of multiple nuclides
US4715383B1 (en) * 1986-11-10 1995-10-31 Mayo Medical Resources Method for reducing artifacts in NMR images
DE4113952C2 (de) * 1991-04-29 1995-05-18 Laukien Guenther Verfahren und Vorrichtung zum Vorhersagen von Erdbeben
US5557200A (en) * 1991-05-16 1996-09-17 Numar Corporation Nuclear magnetic resonance determination of petrophysical properties of geologic structures
EP0581666B1 (en) * 1992-07-30 1997-10-01 Schlumberger Limited Pulsed nuclear magnetism tool for formation evaluation while drilling
AU711508B2 (en) * 1995-03-23 1999-10-14 Schlumberger Technology B.V. Nuclear magnetic resonance borehole logging apparatus and method
US6018243A (en) * 1997-10-29 2000-01-25 Western Atlas International, Inc. NMR well logging apparatus and method

Also Published As

Publication number Publication date
EP0981062A3 (en) 2002-12-18
CA2277662A1 (en) 2000-01-30
AU3687499A (en) 2000-02-24
EP0981062A2 (en) 2000-02-23
NO993690L (no) 2000-01-31
NO993690D0 (no) 1999-07-29
CN1249436A (zh) 2000-04-05
AU737283B2 (en) 2001-08-16
CA2277662C (en) 2003-02-04
AR019488A1 (es) 2002-02-20
ID23708A (id) 2000-05-11

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