NL1013496C2 - NMR gereedschap met een programmeerbare pulsvolgordegenerator voor onder in het boorgat. - Google Patents
NMR gereedschap met een programmeerbare pulsvolgordegenerator voor onder in het boorgat. Download PDFInfo
- Publication number
- NL1013496C2 NL1013496C2 NL1013496A NL1013496A NL1013496C2 NL 1013496 C2 NL1013496 C2 NL 1013496C2 NL 1013496 A NL1013496 A NL 1013496A NL 1013496 A NL1013496 A NL 1013496A NL 1013496 C2 NL1013496 C2 NL 1013496C2
- Authority
- NL
- Netherlands
- Prior art keywords
- tool
- state
- descriptors
- nmr measurement
- nmr
- Prior art date
Links
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 title claims description 27
- 238000005553 drilling Methods 0.000 title description 3
- 238000005481 NMR spectroscopy Methods 0.000 claims description 91
- 230000005291 magnetic effect Effects 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 230000003068 static effect Effects 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 10
- 230000004044 response Effects 0.000 claims description 8
- 239000003302 ferromagnetic material Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 5
- 238000005755 formation reaction Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 238000010586 diagram Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000000685 Carr-Purcell-Meiboom-Gill pulse sequence Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000002592 echocardiography Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 102100040862 Dual specificity protein kinase CLK1 Human genes 0.000 description 1
- 101000749294 Homo sapiens Dual specificity protein kinase CLK1 Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 230000004931 aggregating effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000264 spin echo pulse sequence Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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
- G01R33/28—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
- G01R33/3808—Magnet assemblies for single-sided MR wherein the magnet assembly is located on one side of a subject only; Magnet assemblies for inside-out MR, e.g. for MR in a borehole or in a blood vessel, or magnet assemblies for fringe-field MR
-
- 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
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34046—Volume type coils, e.g. bird-cage coils; Quadrature bird-cage coils; Circularly polarised coils
- G01R33/34053—Solenoid coils; Toroidal coils
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3678—Electrical details, e.g. matching or coupling of the coil to the receiver involving quadrature drive or detection, e.g. a circularly polarized RF magnetic field
-
- 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
- G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets
-
- 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
- G01R33/387—Compensation of inhomogeneities
- G01R33/3873—Compensation of inhomogeneities using ferromagnetic bodies ; Passive shimming
-
- 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
- G01R33/546—Interface between the MR system and the user, e.g. for controlling the operation of the MR system or for the design of pulse 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)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- General Health & Medical Sciences (AREA)
- Remote Sensing (AREA)
- Biochemistry (AREA)
- Vascular Medicine (AREA)
- Signal Processing (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Geophysics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Geophysics And Detection Of Objects (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Drilling And Boring (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Electrotherapy Devices (AREA)
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10718498P | 1998-11-05 | 1998-11-05 | |
| US10718498 | 1998-11-05 | ||
| US09/368,341 US6255818B1 (en) | 1998-08-18 | 1999-08-04 | Method and apparatus for performing magnetic resonance measurements |
| US36834199 | 1999-08-04 | ||
| US09/427,370 US6400147B1 (en) | 1998-11-05 | 1999-10-26 | Downhole NMR tool having a programmable pulse sequencer |
| US42737099 | 1999-10-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL1013496A1 NL1013496A1 (nl) | 2000-05-09 |
| NL1013496C2 true NL1013496C2 (nl) | 2000-07-06 |
Family
ID=27380268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL1013496A NL1013496C2 (nl) | 1998-11-05 | 1999-11-04 | NMR gereedschap met een programmeerbare pulsvolgordegenerator voor onder in het boorgat. |
Country Status (8)
| Country | Link |
|---|---|
| US (3) | US6400147B1 (fr) |
| CN (3) | CN1245640C (fr) |
| AR (1) | AR021095A1 (fr) |
| CA (1) | CA2287773C (fr) |
| GB (1) | GB2346448B (fr) |
| IT (1) | IT1314010B1 (fr) |
| NL (1) | NL1013496C2 (fr) |
| NO (1) | NO326626B1 (fr) |
Families Citing this family (62)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6727696B2 (en) * | 1998-03-06 | 2004-04-27 | Baker Hughes Incorporated | Downhole NMR processing |
| US7020868B2 (en) * | 2000-11-22 | 2006-03-28 | General Electric Company | Graphic application development system for a medical imaging system |
| US6859032B2 (en) * | 2001-12-18 | 2005-02-22 | Schlumberger Technology Corporation | Method for determining molecular properties of hydrocarbon mixtures from NMR data |
| US6838875B2 (en) * | 2002-05-10 | 2005-01-04 | Schlumberger Technology Corporation | Processing NMR data in the presence of coherent ringing |
| US6765380B2 (en) | 2002-05-23 | 2004-07-20 | Schlumberger Technology Corporation | Determining wettability of an oil reservoir using borehole NMR measurements |
| US6867589B2 (en) * | 2002-08-09 | 2005-03-15 | Schlumberger Technology Corporation | Method for detecting hydrocarbons from NMR data |
| US6703832B2 (en) * | 2002-08-12 | 2004-03-09 | Schlumberger Technology Corporation | Method for detecting hydrocarbons by comparing NMR response at different depths of investigation |
| US6859033B2 (en) * | 2002-08-28 | 2005-02-22 | Schlumberger Technology Corporation | Method for magnetic resonance fluid characterization |
| 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 |
| US6586932B1 (en) | 2002-10-16 | 2003-07-01 | Schlumberger Technology Corporation | Enhanced performance antennas for NMR logging |
| US6960913B2 (en) * | 2003-01-14 | 2005-11-01 | Schlumberger Technology Corporation | Multi-measurement NMR analysis based on maximum entropy |
| US7034528B2 (en) * | 2003-02-27 | 2006-04-25 | Schlumberger Technology Corporation | Methods for formation evaluation based on multi-dimensional representation of nuclear magnetic resonance data |
| US7164266B2 (en) * | 2003-03-07 | 2007-01-16 | Precision Energy Services, Inc. | Nuclear magnetic resonance tool with conductive and non-conductive magnet assembly |
| US20040260199A1 (en) * | 2003-06-19 | 2004-12-23 | Wilson-Cook Medical, Inc. | Cytology collection device |
| US7053614B2 (en) * | 2004-04-08 | 2006-05-30 | Varian, Inc. | Optimized channel controller for NMR apparatus |
| US7667462B2 (en) * | 2006-12-22 | 2010-02-23 | Schlumberger Technology Corporation | Nuclear magnetic resonance module |
| CN102360703B (zh) * | 2011-10-12 | 2013-03-27 | 上海神开石油化工装备股份有限公司 | 一种石油井下核磁共振随钻测井仪的磁体结构 |
| MX346802B (es) | 2012-02-08 | 2017-03-31 | Halliburton Energy Services Inc | Herramienta de registro de resonancia magnética nuclear que tiene múltiples magnetómetros atómicos montados en almohadillas. |
| CA2886775A1 (fr) | 2012-10-04 | 2014-04-10 | Halliburton Energy Services, Inc. | Appareil, procedes, et systemes de localisation par la frequence |
| DE102013213591B4 (de) | 2013-07-11 | 2015-02-12 | Siemens Aktiengesellschaft | Ermittlung einer B0-Feldkarte mittels Anregungen mit unterschiedlichen Anregungsfeldern |
| US10295636B2 (en) * | 2013-10-28 | 2019-05-21 | Schlumberger Technology Corporation | Integrated circuit for NMR systems |
| MX2016014683A (es) * | 2014-06-09 | 2017-03-06 | Halliburton Energy Services Inc | Sistemas y metodos de resonancia magnetica que emplean secuencias de pulsos de multiples formas para mediciones paralelas. |
| WO2016033344A1 (fr) * | 2014-08-27 | 2016-03-03 | Schlumberger Canada Limited | Circuit intégré spécifique (asic) pour résonance magnétique nucléaire (rmn) |
| EP3268579B1 (fr) | 2015-03-11 | 2024-06-12 | Halliburton Energy Services, Inc. | Capteur à résonance magnétique nucléaire de fond de trou utilisant un matériau magnétique anisotrope |
| WO2017052787A1 (fr) | 2015-09-24 | 2017-03-30 | Weatherford Technology Holdings, Inc. | Outil de diagraphie rmn à balayage latéral |
| BR112018009697A8 (pt) * | 2015-12-17 | 2019-02-26 | Halliburton Energy Services Inc | ferramenta de perfilagem de ressonância magnética nuclear, sistema e método de teste |
| BR112019001717B1 (pt) | 2016-08-08 | 2022-09-06 | Halliburton Energy Services Inc | Dispositivo de caracterização subterrânea e amostragem de fluidos, e, método de caracterização subterrânea |
| US10739490B2 (en) | 2016-08-08 | 2020-08-11 | Halliburton Energy Services, Inc. | Dual zone nuclear magnetic resonance sensing device for subterranean characterization |
| BR112019005012A2 (pt) * | 2016-09-28 | 2019-06-04 | Halliburton Energy Services Inc | dispositivo de ressonância magnética nuclear, e, método de caracterização de uma formação subterrânea |
| US10732238B2 (en) * | 2016-12-02 | 2020-08-04 | Halliburton Energy Services, Inc. | Determining frequency for achieving a high signal-to-noise ratio in low impedance receivers |
| CN108267790B (zh) * | 2018-01-17 | 2020-07-17 | 中国石油大学(北京) | 三维扫描核磁共振成像仪阵列天线驱动方法及装置 |
| CN108519624A (zh) | 2018-03-08 | 2018-09-11 | 中国石油大学(北京) | 井下三维扫描核磁共振成像仪器射频天线接收方法及装置 |
| CN108663972B (zh) * | 2018-05-23 | 2020-07-17 | 中国石油大学(北京) | 随钻核磁共振测井仪器主控系统与装置 |
| CN108828480A (zh) * | 2018-06-05 | 2018-11-16 | 中国石油大学(北京) | 三维核磁共振成像仪阵列天线去耦方法与装置 |
| JP2022514025A (ja) | 2018-12-18 | 2022-02-09 | サウジ アラビアン オイル カンパニー | 同軸共振器を用いたガスキック検出のためのダウンホールツール |
| US10865640B2 (en) | 2019-04-10 | 2020-12-15 | Saudi Arabian Oil Company | Downhole tool with CATR |
| US10895659B2 (en) | 2019-04-18 | 2021-01-19 | Halliburton Energy Services, Inc. | Detecting nuclear magnetic resonance logging tool motion |
| US11332991B2 (en) | 2019-07-17 | 2022-05-17 | Saudi Arabian Oil Company | Targeted downhole delivery with container |
| US11366071B2 (en) | 2020-03-04 | 2022-06-21 | Saudi Arabian Oil Company | Performing microwave measurements on samples under confining pressure using coaxial resonators |
| US11268380B2 (en) | 2020-04-22 | 2022-03-08 | Saudi Arabian Oil Company | Kick detection using logging while drilling |
| US11414984B2 (en) | 2020-05-28 | 2022-08-16 | Saudi Arabian Oil Company | Measuring wellbore cross-sections using downhole caliper tools |
| US11414985B2 (en) | 2020-05-28 | 2022-08-16 | Saudi Arabian Oil Company | Measuring wellbore cross-sections using downhole caliper tools |
| US11631884B2 (en) | 2020-06-02 | 2023-04-18 | Saudi Arabian Oil Company | Electrolyte structure for a high-temperature, high-pressure lithium battery |
| US11391104B2 (en) | 2020-06-03 | 2022-07-19 | Saudi Arabian Oil Company | Freeing a stuck pipe from a wellbore |
| US11149510B1 (en) | 2020-06-03 | 2021-10-19 | Saudi Arabian Oil Company | Freeing a stuck pipe from a wellbore |
| US11719089B2 (en) | 2020-07-15 | 2023-08-08 | Saudi Arabian Oil Company | Analysis of drilling slurry solids by image processing |
| US11255130B2 (en) | 2020-07-22 | 2022-02-22 | Saudi Arabian Oil Company | Sensing drill bit wear under downhole conditions |
| US11506044B2 (en) | 2020-07-23 | 2022-11-22 | Saudi Arabian Oil Company | Automatic analysis of drill string dynamics |
| US11867008B2 (en) | 2020-11-05 | 2024-01-09 | Saudi Arabian Oil Company | System and methods for the measurement of drilling mud flow in real-time |
| US11434714B2 (en) | 2021-01-04 | 2022-09-06 | Saudi Arabian Oil Company | Adjustable seal for sealing a fluid flow at a wellhead |
| US11697991B2 (en) | 2021-01-13 | 2023-07-11 | Saudi Arabian Oil Company | Rig sensor testing and calibration |
| US11572752B2 (en) | 2021-02-24 | 2023-02-07 | Saudi Arabian Oil Company | Downhole cable deployment |
| US11727555B2 (en) | 2021-02-25 | 2023-08-15 | Saudi Arabian Oil Company | Rig power system efficiency optimization through image processing |
| US11846151B2 (en) | 2021-03-09 | 2023-12-19 | Saudi Arabian Oil Company | Repairing a cased wellbore |
| US11879328B2 (en) | 2021-08-05 | 2024-01-23 | Saudi Arabian Oil Company | Semi-permanent downhole sensor tool |
| US11624265B1 (en) | 2021-11-12 | 2023-04-11 | Saudi Arabian Oil Company | Cutting pipes in wellbores using downhole autonomous jet cutting tools |
| US11867012B2 (en) | 2021-12-06 | 2024-01-09 | Saudi Arabian Oil Company | Gauge cutter and sampler apparatus |
| US11867049B1 (en) | 2022-07-19 | 2024-01-09 | Saudi Arabian Oil Company | Downhole logging tool |
| US11913329B1 (en) | 2022-09-21 | 2024-02-27 | Saudi Arabian Oil Company | Untethered logging devices and related methods of logging a wellbore |
| US12203366B2 (en) | 2023-05-02 | 2025-01-21 | Saudi Arabian Oil Company | Collecting samples from wellbores |
| US12486762B2 (en) | 2024-01-11 | 2025-12-02 | Saudi Arabian Oil Company | Systems and methods for untethered wellbore investigation using modular autonomous device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719423A (en) * | 1985-08-13 | 1988-01-12 | Shell Oil Company | NMR imaging of materials for transport properties |
| EP0489578A1 (fr) * | 1990-12-03 | 1992-06-10 | Numar Corporation | Procédé et dispositif pour RMN mesurage de diffusion |
| EP0567794A2 (fr) * | 1992-03-31 | 1993-11-03 | Kabushiki Kaisha Toshiba | Imagerie par RMN à haute vitesse et commande interactive de séquence d'impulsions |
| US5680043A (en) * | 1995-03-23 | 1997-10-21 | Schlumberger Technology Corporation | Nuclear magnetic resonance technique for determining gas effect with borehole logging tools |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3597681A (en) | 1957-01-30 | 1971-08-03 | Chevron Res | Nuclear magnetic well logging |
| US4175251A (en) * | 1978-04-20 | 1979-11-20 | Schlumberger Technology Corporation | Nuclear magnetism logging method and system |
| JPS61745A (ja) | 1984-06-13 | 1986-01-06 | Toshiba Corp | 核磁気共鳴装置 |
| JPS62176442A (ja) | 1986-01-29 | 1987-08-03 | 横河メディカルシステム株式会社 | 核磁気共鳴断層撮影装置用スキヤンコントロ−ラ |
| US4710713A (en) | 1986-03-11 | 1987-12-01 | Numar Corporation | Nuclear magnetic resonance sensing apparatus and techniques |
| DE3920997C1 (fr) | 1989-06-27 | 1990-08-23 | Bruker Analytische Messtechnik Gmbh, 7512 Rheinstetten, De | |
| US5291610A (en) | 1990-07-12 | 1994-03-01 | The Regents Of The University Of California | Microcode sequencer changing states in response to an external gating input level change upon the occurrence of a WAIT instruction |
| US5309102A (en) * | 1993-05-07 | 1994-05-03 | General Electric Company | Frequency calibration for MRI scanner |
| US5451873A (en) * | 1993-10-05 | 1995-09-19 | Schlumberger Technology Corporation | Method and apparatus for determining the in situ larmor frequency of a wellbore NMR tool to compensate for accumulation of magnetic material on the magnet housing of the tool |
| US5517115A (en) * | 1993-12-16 | 1996-05-14 | Numar Corporation | Efficient processing of NMR echo trains |
| US6242912B1 (en) * | 1995-10-12 | 2001-06-05 | Numar Corporation | System and method for lithology-independent gas detection using multifrequency gradient NMR logging |
| US5712566A (en) * | 1996-02-23 | 1998-01-27 | Western Atlas International, Inc. | Nuclear magnetic resonance apparatus and method |
| US5767674A (en) * | 1996-04-17 | 1998-06-16 | Griffin; Douglas D. | Apparatus for protecting a magnetic resonance antenna |
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| US6140817A (en) * | 1998-05-26 | 2000-10-31 | Schlumberger Technology Corporation | Magnetic resonance well logging method and apparatus |
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-
1999
- 1999-10-26 US US09/427,370 patent/US6400147B1/en not_active Expired - Lifetime
- 1999-11-01 CA CA002287773A patent/CA2287773C/fr not_active Expired - Fee Related
- 1999-11-03 GB GB9926054A patent/GB2346448B/en not_active Expired - Fee Related
- 1999-11-04 NL NL1013496A patent/NL1013496C2/nl not_active IP Right Cessation
- 1999-11-04 IT IT1999MI002312A patent/IT1314010B1/it active
- 1999-11-04 NO NO19995395A patent/NO326626B1/no not_active IP Right Cessation
- 1999-11-04 AR ARP990105595A patent/AR021095A1/es unknown
- 1999-11-05 CN CN200410054427.6A patent/CN1245640C/zh not_active Expired - Fee Related
- 1999-11-05 CN CN200410054428.0A patent/CN1250982C/zh not_active Expired - Fee Related
- 1999-11-05 CN CN99127386.9A patent/CN1262849C/zh not_active Expired - Fee Related
-
2001
- 2001-11-28 US US09/995,908 patent/US6534980B2/en not_active Expired - Lifetime
- 2001-11-28 US US09/995,904 patent/US6573716B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4719423A (en) * | 1985-08-13 | 1988-01-12 | Shell Oil Company | NMR imaging of materials for transport properties |
| EP0489578A1 (fr) * | 1990-12-03 | 1992-06-10 | Numar Corporation | Procédé et dispositif pour RMN mesurage de diffusion |
| EP0567794A2 (fr) * | 1992-03-31 | 1993-11-03 | Kabushiki Kaisha Toshiba | Imagerie par RMN à haute vitesse et commande interactive de séquence d'impulsions |
| US5680043A (en) * | 1995-03-23 | 1997-10-21 | Schlumberger Technology Corporation | Nuclear magnetic resonance technique for determining gas effect with borehole logging tools |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2346448A (en) | 2000-08-09 |
| NO326626B1 (no) | 2009-01-19 |
| US6573716B2 (en) | 2003-06-03 |
| US6534980B2 (en) | 2003-03-18 |
| NO995395L (no) | 2000-05-08 |
| IT1314010B1 (it) | 2002-12-03 |
| GB9926054D0 (en) | 2000-01-12 |
| US20020033699A1 (en) | 2002-03-21 |
| US6400147B1 (en) | 2002-06-04 |
| CN1245640C (zh) | 2006-03-15 |
| ITMI992312A1 (it) | 2001-05-04 |
| CN1560654A (zh) | 2005-01-05 |
| CN1250982C (zh) | 2006-04-12 |
| ITMI992312A0 (it) | 1999-11-04 |
| NL1013496A1 (nl) | 2000-05-09 |
| CA2287773C (fr) | 2007-01-02 |
| CA2287773A1 (fr) | 2000-05-05 |
| CN1260497A (zh) | 2000-07-19 |
| NO995395D0 (no) | 1999-11-04 |
| CN1560653A (zh) | 2005-01-05 |
| GB2346448B (en) | 2001-01-31 |
| CN1262849C (zh) | 2006-07-05 |
| US20020036503A1 (en) | 2002-03-28 |
| AR021095A1 (es) | 2002-06-12 |
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| Date | Code | Title | Description |
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| AD1B | A search report has been drawn up | ||
| PD2B | A search report has been drawn up | ||
| VD1 | Lapsed due to non-payment of the annual fee |
Effective date: 20050601 |