NO20024297D0 - Fremgangsmåte og apparat for å måle strömningshastighet i en brönnboring ved hjelp av NMR samt anvendelser av samme - Google Patents

Fremgangsmåte og apparat for å måle strömningshastighet i en brönnboring ved hjelp av NMR samt anvendelser av samme

Info

Publication number
NO20024297D0
NO20024297D0 NO20024297A NO20024297A NO20024297D0 NO 20024297 D0 NO20024297 D0 NO 20024297D0 NO 20024297 A NO20024297 A NO 20024297A NO 20024297 A NO20024297 A NO 20024297A NO 20024297 D0 NO20024297 D0 NO 20024297D0
Authority
NO
Norway
Prior art keywords
wellbore
nmr
applications
same
flow velocity
Prior art date
Application number
NO20024297A
Other languages
English (en)
Other versions
NO323315B1 (no
NO20024297L (no
Inventor
Peter Speier
Julian Pop
Martin E Poitzsch
Original Assignee
Schlumberger Technology Bv
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 Schlumberger Technology Bv filed Critical Schlumberger Technology Bv
Publication of NO20024297D0 publication Critical patent/NO20024297D0/no
Publication of NO20024297L publication Critical patent/NO20024297L/no
Publication of NO323315B1 publication Critical patent/NO323315B1/no

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
    • G01R33/44—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
    • G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Geophysics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measuring Volume Flow (AREA)
NO20024297A 2001-09-10 2002-09-09 Fremgangsmate a bestemme fluidstromningshastighet i en undergrunnsformasjon ved bruk av et kjernemagnetisk-resonans-verktoy i et borehull NO323315B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/951,914 US6528995B1 (en) 2001-09-10 2001-09-10 Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same

Publications (3)

Publication Number Publication Date
NO20024297D0 true NO20024297D0 (no) 2002-09-09
NO20024297L NO20024297L (no) 2003-03-11
NO323315B1 NO323315B1 (no) 2007-03-12

Family

ID=25492321

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20024297A NO323315B1 (no) 2001-09-10 2002-09-09 Fremgangsmate a bestemme fluidstromningshastighet i en undergrunnsformasjon ved bruk av et kjernemagnetisk-resonans-verktoy i et borehull

Country Status (7)

Country Link
US (6) US6528995B1 (no)
CN (3) CN1235061C (no)
AU (1) AU2002300756B2 (no)
CA (1) CA2401940C (no)
GB (1) GB2384315B (no)
MX (1) MXPA02008715A (no)
NO (1) NO323315B1 (no)

Families Citing this family (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6566874B1 (en) * 1998-07-30 2003-05-20 Schlumberger Technology Corporation Detecting tool motion effects on nuclear magnetic resonance measurements
US6492809B1 (en) * 1998-12-04 2002-12-10 Schlumberger Technology Corporation Preconditioning spins near a nuclear magnetic resonance region
US6518756B1 (en) * 2001-06-14 2003-02-11 Halliburton Energy Services, Inc. Systems and methods for determining motion tool parameters in borehole logging
US6528995B1 (en) * 2001-09-10 2003-03-04 Schlumberger Technology Corporation Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same
US6774628B2 (en) * 2002-01-18 2004-08-10 Schlumberger Technology Corporation Nuclear magnetic resonance imaging using phase encoding with non-linear gradient fields
FR2838120B1 (fr) 2002-04-04 2004-06-11 Chryso Sas Compositions de cure de mortiers ou betons assurant la retention d'eau(pendant la prise) et procede de mise en oeuvre
US6714009B2 (en) * 2002-05-16 2004-03-30 Schlumberger Technology Corporation Method for the inversion of CPMG measurements enhanced by often repeated short wait time measurements
US6765380B2 (en) * 2002-05-23 2004-07-20 Schlumberger Technology Corporation Determining wettability of an oil reservoir using borehole NMR measurements
FR2840298B1 (fr) * 2002-05-30 2005-04-08 Chryso Sas Composition de traitement de surfaces de mortiers ou betons frais assurant simultanement retention d'eau et capacite d'adhesion renforcee
US6937013B2 (en) * 2002-06-19 2005-08-30 Schlumberger Technology Corporation NMR tool for making formation evaluation measurements using gradient echoes
US6956370B2 (en) * 2002-10-04 2005-10-18 Schlumberger Technology Corporation Method for reducing ringing in NMR measurements by combining NMR signals having a spin echo and spurious signal component
US6856132B2 (en) * 2002-11-08 2005-02-15 Shell Oil Company Method and apparatus for subterranean formation flow imaging
US6808028B2 (en) * 2002-12-03 2004-10-26 Schlumberger Technology Corporation Method and apparatus utilizing NMR measurements to gather information on a property of the earth formation surrounding a wellbore
WO2004090557A2 (en) * 2003-04-01 2004-10-21 Halliburton Energy Services, Inc. Abnormal pressure determination using nuclear magnetic resonance logging
EP1642156B1 (en) * 2003-05-02 2020-03-04 Halliburton Energy Services, Inc. Systems and methods for nmr logging
US6897652B2 (en) * 2003-06-19 2005-05-24 Shell Oil Company NMR flow measurement while drilling
US6958604B2 (en) * 2003-06-23 2005-10-25 Schlumberger Technology Corporation Apparatus and methods for J-edit nuclear magnetic resonance measurement
US6933719B2 (en) * 2003-07-03 2005-08-23 Exxonmobil Research And Engineering Co. Fluid flow properties from acoustically stimulated NMR
GB2405935A (en) * 2003-09-10 2005-03-16 Rolls Royce Plc NMR methods of measuring fluid flow rates
BRPI0414998A (pt) * 2003-10-03 2006-11-21 Halliburton Energy Serv Inc métodos para identificar gás em uma formação geológica, para analisar formações geológicas, e de rmn para analisar formações geológicas, e sistema
US7180288B2 (en) * 2004-11-10 2007-02-20 Schlumberger Technology Corporation Downhole NMR flow and formation characterization while sampling fluids
US7372263B2 (en) * 2005-11-23 2008-05-13 Baker Hughes Incorporated Apparatus and method for measuring cased hole fluid flow with NMR
US7528600B2 (en) * 2006-12-08 2009-05-05 Schlumberger Technology Corporation System and method for downhole time-of-flight sensing, remote NMR detection of fluid flow in rock formations
US7486070B2 (en) * 2006-12-18 2009-02-03 Schlumberger Technology Corporation Devices, systems and methods for assessing porous media properties
US7459907B2 (en) * 2006-12-28 2008-12-02 Schlumberger Technology Corporation Flow measurement using NMR
WO2009048781A1 (en) * 2007-10-12 2009-04-16 Exxonmobil Upstream Research Company Non-destructive determination of the pore size distribution and the distribution of fluid flow velocities
US8593140B2 (en) * 2007-11-02 2013-11-26 Schlumberger Technology Corporation Formation testing and evaluation using localized injection
US7804297B2 (en) * 2008-01-30 2010-09-28 Baker Hughes Incorporated Methodology for interpretation and analysis of NMR distributions
US8330460B2 (en) * 2008-01-30 2012-12-11 Baker Hughes Incorporated Method and apparatus for determining multiscale similarity between NMR measurements and a reference well log
US9051822B2 (en) 2008-04-15 2015-06-09 Schlumberger Technology Corporation Formation treatment evaluation
US8297354B2 (en) 2008-04-15 2012-10-30 Schlumberger Technology Corporation Tool and method for determining formation parameter
US7746069B2 (en) * 2008-05-21 2010-06-29 Schlumberger Technology Corporation Method of determining a radial profile of a formation parameter indicative of formation treatment efficiency
US8794318B2 (en) * 2008-07-14 2014-08-05 Schlumberger Technology Corporation Formation evaluation instrument and method
US7675287B2 (en) * 2008-07-29 2010-03-09 Schlumberger Technology Corporation Method for estimating formation skin damage from nuclear magnetic resonance measurements
US9176252B2 (en) * 2009-01-19 2015-11-03 Schlumberger Technology Corporation Estimating petrophysical parameters and invasion profile using joint induction and pressure data inversion approach
US8330459B2 (en) * 2009-05-08 2012-12-11 Baker Hughes Incorporated Method and apparatus for NMR measurements in small boreholes
US8471560B2 (en) * 2009-09-18 2013-06-25 Schlumberger Technology Corporation Measurements in non-invaded formations
US8860412B2 (en) * 2010-08-31 2014-10-14 Schlumberger Technology Corporation Methods and systems for measuring NMR characteristics in production logging
US9507047B1 (en) 2011-05-10 2016-11-29 Ingrain, Inc. Method and system for integrating logging tool data and digital rock physics to estimate rock formation properties
US20150028867A1 (en) * 2011-11-23 2015-01-29 Jutta Gaguen Method and system for measuring relative velocity between a vehicle and the surrounding atmosphere
US20130181706A1 (en) * 2012-01-18 2013-07-18 Baker Hughes Incorporated System and method to estimate a property of a fluid flow
US9575204B2 (en) 2012-02-08 2017-02-21 Halliburton Energy Services, Inc. Nuclear magnetic resonance logging tool having multiple pad-mounted atomic magnetometers
US10370965B2 (en) * 2012-02-13 2019-08-06 Schlumberger Technology Corporation Method for determining a permeability or mobility of a radial flow response of a reservoir
US9465133B2 (en) 2013-03-01 2016-10-11 Halliburton Energy Services, Inc. Downhole differentiation of light oil and oil-based filtrates by NMR with oleophilic nanoparticles
CA2897329A1 (en) * 2013-03-01 2014-09-04 Halliburton Energy Services, Inc. Downhole differentiation of light oil and oil-based filtrates by nmr with oleophilic nanoparticles
US10174569B2 (en) 2013-06-20 2019-01-08 Aspect International (2015) Private Limited NMR/MRI-based integrated system for analyzing and treating of a drilling mud for drilling mud recycling process and methods thereof
US9494503B2 (en) 2013-11-06 2016-11-15 Aspect Imaging Ltd. Inline rheology/viscosity, density, and flow rate measurement
US10197696B2 (en) 2013-11-15 2019-02-05 Baker Hughes, A Ge Company, Llc NMR logging interpretation of solid invasion
WO2015099714A1 (en) * 2013-12-24 2015-07-02 Halliburton Energy Services, Inc. Downhole viscosity sensor with smart fluid
US9891300B2 (en) * 2014-08-21 2018-02-13 University Of Virginia Patent Foundation Method and apparatus for acquiring magnetic resonance data
US20170336489A1 (en) * 2014-11-03 2017-11-23 Aspect Imaging Ltd. Mri method for measuring velocity profiles in drilling mud
JP6730995B2 (ja) * 2014-11-07 2020-07-29 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 環境内に動きがある物体のｍｒ画像を生成する方法及びシステム
US10338267B2 (en) * 2014-12-19 2019-07-02 Schlumberger Technology Corporation Formation properties from time-dependent nuclear magnetic resonance (NMR) measurements
WO2016116926A1 (en) 2015-01-19 2016-07-28 Aspect International (2015) Private Limited Nmr-based systems for crude oil enhancement and methods thereof
CN106053299B (zh) 2015-04-12 2020-10-30 艾斯拜克特Ai有限公司 非圆形横截面管道中的流体的nmr成像
CN106324010A (zh) 2015-07-02 2017-01-11 艾斯拜克特Ai有限公司 使用mr设备对在管道中流动的流体的分析
CN106324009B (zh) * 2015-07-06 2018-05-11 中国石油化工股份有限公司 岩心驱替实验设备和实验方法
US10466381B2 (en) * 2015-12-28 2019-11-05 Baker Hughes, A Ge Company, Llc NMR logging in formation with micro-porosity by using first echoes from multiple measurements
WO2017173305A1 (en) * 2016-03-31 2017-10-05 Akbari Babak Magnetic gradient drilling
US10655996B2 (en) 2016-04-12 2020-05-19 Aspect Imaging Ltd. System and method for measuring velocity profiles
CN106153662A (zh) * 2016-06-17 2016-11-23 北京大学 岩心应力敏感性的测量方法
AU2017288054A1 (en) * 2016-07-01 2019-01-17 Nmr Services Australia Downhole diffusion coefficient measurement
CN107064838B (zh) * 2017-04-25 2023-04-28 北京青檬艾柯科技有限公司 一种能够形成变梯度静磁场的磁体系统结构及测量方法
CN107525819A (zh) * 2017-07-17 2017-12-29 中国石油大学(北京) 核磁共振流体分析仪探头以及核磁共振流体分析仪
CN108254588B (zh) * 2018-01-11 2020-06-09 中国石油大学(北京) 核磁共振测量流体流速的方法与装置
CN108414560B (zh) * 2018-03-06 2020-07-07 中国石油大学(华东) 一种核磁-驱替联用装置评价致密油充注过程的方法
CN108918573A (zh) * 2018-08-23 2018-11-30 中国石油天然气股份有限公司 油水两相流组分含量测量方法及系统
CN109001243B (zh) * 2018-08-30 2020-06-30 中国地质大学（北京） 一种采用低场核磁共振评价煤的动态水锁效应的方法与装置
US10562541B1 (en) * 2018-11-15 2020-02-18 GM Global Technology Operations LLC Contextual autonomous vehicle support through speech interaction
CN109597134B (zh) * 2019-01-28 2020-02-18 吉林大学 基于绝热脉冲激发源的核磁共振地下水探测装置及其方法
CN110761782B (zh) * 2019-11-13 2024-02-09 中国石油天然气集团有限公司 一种用于地质导向的方位随钻核磁共振测井装置
CN111637962B (zh) * 2020-06-05 2021-04-20 无锡鸣石峻致医疗科技有限公司 一种剪切波衰减系数测量方法与系统

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4532473A (en) 1983-05-18 1985-07-30 General Electric Company NMR method for measuring and imaging fluid flow
GB9021257D0 (en) * 1990-09-29 1990-11-14 Guilfoyle David N Method and apparatus for measuring the flow of a fluid through porous media by echo planar imaging
US5212447A (en) * 1990-12-03 1993-05-18 Numar Corporation Apparatus and technique for nmr diffusion measurement
US5289124A (en) * 1991-09-20 1994-02-22 Exxon Research And Engineering Company Permeability determination from NMR relaxation measurements for fluids in porous media
US5387865A (en) * 1991-09-20 1995-02-07 Exxon Research And Engineering Company Permeability determination from NMR relaxation measurements for fluids in porous media
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
US5629623A (en) 1992-07-30 1997-05-13 Schlumberger Technology Corporation Pulsed nuclear magnetism tool for formation evaluation while drilling
US5428291A (en) 1993-07-01 1995-06-27 Exxon Research And Engineering Company Determination of fluid transport properties in porous media by nuclear magnetic resonance measurements of fluid flow
US6133795A (en) * 1994-06-24 2000-10-17 Williams; Roscoe Charles Oscillator circuit
AU711508B2 (en) * 1995-03-23 1999-10-14 Schlumberger Technology B.V. Nuclear magnetic resonance borehole logging apparatus and method
US5698979A (en) * 1996-02-23 1997-12-16 Western Atlas International, Inc. Method for NMR diffusion measurement
US5769252A (en) * 1996-12-05 1998-06-23 Volpe And Koenig, P.C. Container closure which converts from a child resistant to a non-child resistant configuration
US6255817B1 (en) 1997-06-23 2001-07-03 Schlumberger Technology Corporation Nuclear magnetic resonance logging with azimuthal resolution
US6268727B1 (en) * 1997-06-24 2001-07-31 Southwest Research Institute Measurement of flow fractions flow velocities and flow rates of a multiphase fluid using ESR sensing
US6166543A (en) * 1997-09-25 2000-12-26 Schlumberger Technology Corporation Method and apparatus for measuring nuclear magnetic resonance
US6140816A (en) * 1997-12-12 2000-10-31 Schlumberger Technology Corporation Method of determining the permeability of sedimentary strata
US6111408A (en) 1997-12-23 2000-08-29 Numar Corporation Nuclear magnetic resonance sensing apparatus and techniques for downhole measurements
US6237404B1 (en) 1998-02-27 2001-05-29 Schlumberger Technology Corporation Apparatus and method for determining a drilling mode to optimize formation evaluation measurements
US7501817B1 (en) * 1998-03-03 2009-03-10 Schlumberger Technology Corporation Method and apparatus for generating an axisymmetric magnetic field
US6291995B1 (en) 1998-03-03 2001-09-18 Schlumberger Technology Corporation Apparatus and method for generating a pulse sequence
US6246236B1 (en) * 1998-03-03 2001-06-12 Schlumberger Technology Corporation Apparatus and method for obtaining a nuclear magnetic resonance measurement while drilling
US6232778B1 (en) 1998-06-11 2001-05-15 Schlumberger Technology Corporation Method for obtaining NMR bound fluid volume using partial polarization
US6492809B1 (en) 1998-12-04 2002-12-10 Schlumberger Technology Corporation Preconditioning spins near a nuclear magnetic resonance region
US6326784B1 (en) * 1998-11-05 2001-12-04 Schlumberger Technology Corporation Nuclear magnetic resonance logging with azimuthal resolution using gradient coils
US6566874B1 (en) * 1998-07-30 2003-05-20 Schlumberger Technology Corporation Detecting tool motion effects on nuclear magnetic resonance measurements
US6346813B1 (en) * 1998-08-13 2002-02-12 Schlumberger Technology Corporation Magnetic resonance method for characterizing fluid samples withdrawn from subsurface formations
US6107796A (en) * 1998-08-17 2000-08-22 Numar Corporation Method and apparatus for differentiating oil based mud filtrate from connate oil
US6570381B1 (en) 1999-03-25 2003-05-27 Schlumberger Technology Corporation Nuclear magnetic resonance well logging method and apparatus
US6297632B1 (en) * 1999-07-19 2001-10-02 Schlumberger Technology Corporation Detecting tool motion effects on spin echoes obtained with nuclear magnetic resonance measurements
US6400149B1 (en) 2001-05-24 2002-06-04 Schlumberger Technology Corporation Nuclear magnetic resonance apparatus and method for generating an axisymmetric magnetic field having straight contour lines in the resonance region
US6528995B1 (en) * 2001-09-10 2003-03-04 Schlumberger Technology Corporation Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same
US6518757B1 (en) * 2002-03-08 2003-02-11 Schlumberger Technology Corporation Use of CPMG sequences with phase cycled refocusing pulses in inside-out NMR for phase encoded imaging and to eliminate coherent ringing within one scan

Also Published As

Publication number Publication date
NO323315B1 (no) 2007-03-12
CN101126816A (zh) 2008-02-20
CN1673777A (zh) 2005-09-28
US20030052673A1 (en) 2003-03-20
US20030052675A1 (en) 2003-03-20
US20030052674A1 (en) 2003-03-20
US6642715B2 (en) 2003-11-04
AU2002300756B2 (en) 2004-12-02
CA2401940C (en) 2007-05-15
US6518758B1 (en) 2003-02-11
GB2384315B (en) 2006-03-22
US6528995B1 (en) 2003-03-04
US6538438B1 (en) 2003-03-25
CN1407351A (zh) 2003-04-02
CN1235061C (zh) 2006-01-04
CN101126816B (zh) 2011-04-20
GB2384315A (en) 2003-07-23
CN100357764C (zh) 2007-12-26
GB0220004D0 (en) 2002-10-09
US20030052672A1 (en) 2003-03-20
US6710596B2 (en) 2004-03-23
MXPA02008715A (es) 2004-03-26
US6531869B1 (en) 2003-03-11
NO20024297L (no) 2003-03-11
CA2401940A1 (en) 2003-03-10

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