NO20065533L - Reduksjon av bevegelsesartefakter ved NMR - Google Patents

Reduksjon av bevegelsesartefakter ved NMR

Info

Publication number
NO20065533L
NO20065533L NO20065533A NO20065533A NO20065533L NO 20065533 L NO20065533 L NO 20065533L NO 20065533 A NO20065533 A NO 20065533A NO 20065533 A NO20065533 A NO 20065533A NO 20065533 L NO20065533 L NO 20065533L
Authority
NO
Norway
Prior art keywords
pulse
logging tool
earth formation
refocusing
excitation pulse
Prior art date
Application number
NO20065533A
Other languages
English (en)
Inventor
Martin Blanz
Thomas Kruspe
Holger F Thern
Peter Rottengatter
Radu Fechete
Original Assignee
Baker Hughes 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 Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of NO20065533L publication Critical patent/NO20065533L/no

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
    • 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)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Signal Processing (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Foreliggende oppfinnelse vedrører en fremgangsmåte og apparat for å oppnå NMR-spinnekkosignaler fra en jordformasjon. Fremgangsmåten er særpreget ved at den omfatter de trinn å føre et loggeverktøy inn i et borehull i jordformasjonen, å polarisere kjernespinn i jordformasjonen ved bruk av en magnet på loggeverktøyet, å pulse en antenne p'a loggeverktøyet med en pulssekvens og frembringe spinnekkosignaler, idet pulssekvensen omfatter en eksiteringspuls og minst én refokuseringspuls, idet eksiteringspulsen og nevnte minst ene refokuseringspuls begge har hver sine første og andre assosierte volumer hvor en resonansbetingelse tilfredsstilles, idet loggeverktøyet er en bevegelse mellom et tidspunkt for påtrykking av eksiteringspulsing og et tidspunkt for påtrykking av den minst ene refokuseringspulsen, og å selektere en parameter ved minst én av (A) eksiteringspulsen, og, (B) den minst ene refokuseringspuls, og opprettelse av et forutbestemt forhold mellom det første og andre volum.
NO20065533A 2004-05-05 2006-11-30 Reduksjon av bevegelsesartefakter ved NMR NO20065533L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/839,478 US7180287B2 (en) 2004-05-05 2004-05-05 Reduction of motion artifacts in NMR
PCT/US2005/015613 WO2005109038A2 (en) 2004-05-05 2005-05-05 Reduction of motion artifacts in nmr

Publications (1)

Publication Number Publication Date
NO20065533L true NO20065533L (no) 2006-12-04

Family

ID=34979189

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20065533A NO20065533L (no) 2004-05-05 2006-11-30 Reduksjon av bevegelsesartefakter ved NMR

Country Status (5)

Country Link
US (1) US7180287B2 (no)
CA (1) CA2565587C (no)
GB (1) GB2429297B (no)
NO (1) NO20065533L (no)
WO (1) WO2005109038A2 (no)

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US9388635B2 (en) * 2008-11-04 2016-07-12 Halliburton Energy Services, Inc. Method and apparatus for controlling an orientable connection in a drilling assembly
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RU2388906C1 (ru) * 2008-12-30 2010-05-10 Шлюмберже Текнолоджи Б.В. Способ определения радиуса области заводнения нефтяного пласта в окрестностях скважины
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US9658358B2 (en) * 2011-12-27 2017-05-23 Schlumberger Technology Corporation Refocusing pulses and excitation pulses for NMR logging
US20130234705A1 (en) * 2012-03-08 2013-09-12 Schlumberger Technology Corporation Method and system for applying nmr pulse sequences using different frequencies
US10488486B2 (en) 2013-05-30 2019-11-26 Halliburton Energy Services, Inc. Nuclear magnetic resonance tool calibration
CA2922314A1 (en) 2013-08-25 2015-03-05 Schlumberger Canada Limited Correction of motion effect in nuclear magnetic resonance (nmr) logging
EP3052969A1 (en) * 2013-12-13 2016-08-10 Halliburton Energy Services, Inc. Single-transient phase cycling during spin echo acquisition
US9671483B2 (en) * 2014-02-26 2017-06-06 Baker Hughes Incorporated T2 inversions with reduced motion artifacts
US10088594B2 (en) * 2014-10-16 2018-10-02 Schlumberger Technology Corporation Methods and apparatuses for echo processing of nuclear magnetic resonance (NMR) data
US10539705B2 (en) * 2014-10-23 2020-01-21 Baker Hughes, A Ge Company, Llc Formation evaluation utilizing dual wait time nuclear magnetic resonance
CN105615882A (zh) * 2014-10-31 2016-06-01 Ge医疗系统环球技术有限公司 磁共振成像方法
US10302733B2 (en) * 2015-12-17 2019-05-28 Vista Clara Inc. NMR spin-echo amplitude estimation
US10473600B2 (en) 2015-12-22 2019-11-12 Halliburton Energy Services, Inc. Selective NMR pulse for downhole measurements
US10126457B2 (en) * 2016-03-04 2018-11-13 Baker Hughes, A Ge Company, Llc Motion detection and correction of magnetic resonance data
US10429536B2 (en) 2016-04-04 2019-10-01 Baker Hughes, A Ge Company, Llc T2 inversions with reduced motion artifacts
DE102016108996A1 (de) * 2016-05-15 2017-11-16 Krohne Ag Verfahren zum Betreiben eines kernmagnetischen Durchflussmessgeräts und kernmagnetisches Durchflussmessgerät
CA3046921C (en) 2017-03-09 2021-02-16 Halliburton Energy Services, Inc. Downhole nuclear magnetic resonance tool with active compensation for motional effects
US10753994B2 (en) * 2017-04-21 2020-08-25 University Of Virginia Patent Foundation Systems and methods for simultaneous multi-slice imaging
US10890685B2 (en) * 2017-08-11 2021-01-12 Schlumberger Technology Corporation Apparatus and methods for determining properties of hydrogen-containing samples using nuclear magnetic resonance
US10724975B2 (en) 2017-08-11 2020-07-28 Schlumberger Technology Corporation Apparatus and methods for determining properties of liquid-bearing solids using nuclear magnetic resonance
WO2019135752A1 (en) 2018-01-04 2019-07-11 Halliburton Energy Services, Inc. Downhole nuclear magnetic resonance (nmr) tool for one-dimensional nmr imaging
US10900916B2 (en) 2018-07-16 2021-01-26 Baker Hughes, A Ge Company, Llc Method and apparatus to detect free induction decay NMR signals
US10895659B2 (en) 2019-04-18 2021-01-19 Halliburton Energy Services, Inc. Detecting nuclear magnetic resonance logging tool motion
US11060398B2 (en) 2019-08-30 2021-07-13 Halliburton Energy Services, Inc. Pulse-sequence design to reduce motion effects and characterize tool motion during logging
US11422283B1 (en) * 2021-07-14 2022-08-23 Halliburton Energy Services, Inc. Reducing motion effects on nuclear magnetic resonance relaxation data
US11899158B2 (en) 2022-03-14 2024-02-13 Halliburton Energy Services, Inc. Logging tool motion error reduction for nuclear magnetic resonance logging via pulse sub-sequences

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Also Published As

Publication number Publication date
WO2005109038B1 (en) 2006-12-14
GB2429297B (en) 2007-12-19
US20050248342A1 (en) 2005-11-10
GB0621703D0 (en) 2006-12-20
CA2565587A1 (en) 2005-11-17
US7180287B2 (en) 2007-02-20
WO2005109038A3 (en) 2006-09-14
GB2429297A (en) 2007-02-21
CA2565587C (en) 2013-01-15
WO2005109038A2 (en) 2005-11-17

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