CA2416520A1 - Nuclear magnetic resonance tool with magnetostrictive noise compensation - Google Patents

Nuclear magnetic resonance tool with magnetostrictive noise compensation Download PDF

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Publication number
CA2416520A1
CA2416520A1 CA002416520A CA2416520A CA2416520A1 CA 2416520 A1 CA2416520 A1 CA 2416520A1 CA 002416520 A CA002416520 A CA 002416520A CA 2416520 A CA2416520 A CA 2416520A CA 2416520 A1 CA2416520 A1 CA 2416520A1
Authority
CA
Canada
Prior art keywords
magnetic resonance
nuclear magnetic
negative
noise compensation
positive
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.)
Granted
Application number
CA002416520A
Other languages
French (fr)
Other versions
CA2416520C (en
Inventor
Thomas Kruspe
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.)
Baker Hughes Holdings LLC
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2416520A1 publication Critical patent/CA2416520A1/en
Application granted granted Critical
Publication of CA2416520C publication Critical patent/CA2416520C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

An NMR logging apparatus and method are provided including an antenna having compensation for magnetostrictive ringing. The antenna comprises at least one inductive winding (126) and a core (118) having a first portion having positive magnetostriction in the presence of a radio frequency magnetic field, and a second portion having negative magnetostriction in the presence of the radio frequency magnetic field. The positive and negative portions may be tiles (302, 304) shaped as polygonal cylinders arranged with alternating positive and negative tiles forming at least one layer of a matrix, or the portions may be constructed using ferrite powder fixed in epoxy and shaped in polygonal cylinders.
CA002416520A 2000-07-18 2001-07-18 Nuclear magnetic resonance tool with magnetostrictive noise compensation Expired - Lifetime CA2416520C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/618,851 US6326785B1 (en) 2000-07-18 2000-07-18 Nuclear magnetic resonance tool with magnetostrictive noise compensation
US09/618,851 2000-07-18
PCT/US2001/022806 WO2002006801A2 (en) 2000-07-18 2001-07-18 Nuclear magnetic resonance tool with magnetostrictive noise compensation

Publications (2)

Publication Number Publication Date
CA2416520A1 true CA2416520A1 (en) 2002-01-24
CA2416520C CA2416520C (en) 2005-01-11

Family

ID=24479382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002416520A Expired - Lifetime CA2416520C (en) 2000-07-18 2001-07-18 Nuclear magnetic resonance tool with magnetostrictive noise compensation

Country Status (6)

Country Link
US (1) US6326785B1 (en)
EP (1) EP1301776B1 (en)
AU (1) AU2001280630A1 (en)
CA (1) CA2416520C (en)
DE (1) DE60127558T2 (en)
WO (1) WO2002006801A2 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6956371B2 (en) * 1995-10-12 2005-10-18 Halliburton Energy Services, Inc. Method and apparatus for detecting diffusion sensitive phases with estimation of residual error in NMR logs
US6727696B2 (en) * 1998-03-06 2004-04-27 Baker Hughes Incorporated Downhole NMR processing
US7235970B2 (en) * 2000-06-28 2007-06-26 Baker Hughes Incorporated Antenna core material for use in MWD resistivity measurements and NMR measurements
US6844727B2 (en) * 2000-06-28 2005-01-18 Baker Hughes Incorporated Method and apparatus of reducing ringing in a nuclear magnetic resonance probe
US6650114B2 (en) * 2001-06-28 2003-11-18 Baker Hughes Incorporated NMR data acquisition with multiple interecho spacing
US7301338B2 (en) * 2001-08-13 2007-11-27 Baker Hughes Incorporated Automatic adjustment of NMR pulse sequence to optimize SNR based on real time analysis
US6781371B2 (en) 2002-09-06 2004-08-24 Schlumberger Technology Corporation High vertical resolution antennas for NMR logging
GB2408580B (en) * 2002-09-06 2006-03-15 Schlumberger Holdings NMR well logging
US7164266B2 (en) * 2003-03-07 2007-01-16 Precision Energy Services, Inc. Nuclear magnetic resonance tool with conductive and non-conductive magnet assembly
CA2476787C (en) * 2004-08-06 2008-09-30 Halliburton Energy Services, Inc. Integrated magnetic ranging tool
US7196516B2 (en) * 2004-08-16 2007-03-27 Baker Hughes Incorporated Correction of NMR artifacts due to constant-velocity axial motion and spin-lattice relaxation
GB0418382D0 (en) * 2004-08-18 2004-09-22 Reed Hycalog Uk Ltd Rotary drill bit
JP2006149722A (en) * 2004-11-30 2006-06-15 Ge Medical Systems Global Technology Co Llc Magnet system and magnetic resonance imaging apparatus
GB2449032B (en) * 2006-02-17 2009-12-23 Baker Hughes Inc Compensation of magnetic influence in a mwd system
US8836328B2 (en) * 2010-02-03 2014-09-16 Baker Hughes Incorporated Acoustic excitation with NMR pulse
WO2016159979A1 (en) 2015-03-31 2016-10-06 Halliburton Energy Services, Inc. Fiber optic nuclear magnetic resonance sensor
US10422915B2 (en) 2015-12-29 2019-09-24 Halliburton Energy Services ,Inc. External housing for signal to noise improvement

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB932055A (en) 1959-02-09 1963-07-24 Hollands & Blair Ltd Cutting tool handle
US4350955A (en) 1980-10-10 1982-09-21 The United States Of America As Represented By The United States Department Of Energy Magnetic resonance apparatus
US4433291A (en) * 1981-01-09 1984-02-21 The United States Of America As Represented By The Secretary Of The Navy Optical fiber for magnetostrictive responsive detection of magnetic fields
GB2141236B (en) 1983-06-09 1986-12-10 Nat Res Dev Nuclear magnetic logging
US4710713A (en) * 1986-03-11 1987-12-01 Numar Corporation Nuclear magnetic resonance sensing apparatus and techniques
US5712566A (en) 1996-02-23 1998-01-27 Western Atlas International, Inc. Nuclear magnetic resonance apparatus and method
US6215304B1 (en) * 1998-01-21 2001-04-10 Oxford Instruments (Uk) Ltd. NMR sensor

Also Published As

Publication number Publication date
EP1301776B1 (en) 2007-03-28
AU2001280630A1 (en) 2002-01-30
CA2416520C (en) 2005-01-11
WO2002006801A2 (en) 2002-01-24
US6326785B1 (en) 2001-12-04
WO2002006801A3 (en) 2002-11-28
DE60127558D1 (en) 2007-05-10
DE60127558T2 (en) 2008-01-24
EP1301776A2 (en) 2003-04-16

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Effective date: 20210719