EA201691157A1 - Способ и система для обнаружения материала в области земли - Google Patents

Способ и система для обнаружения материала в области земли

Info

Publication number
EA201691157A1
EA201691157A1 EA201691157A EA201691157A EA201691157A1 EA 201691157 A1 EA201691157 A1 EA 201691157A1 EA 201691157 A EA201691157 A EA 201691157A EA 201691157 A EA201691157 A EA 201691157A EA 201691157 A1 EA201691157 A1 EA 201691157A1
Authority
EA
Eurasian Patent Office
Prior art keywords
earth
systems
area
detection
earth material
Prior art date
Application number
EA201691157A
Other languages
English (en)
Inventor
Еиити Фукусима
Стефен А. Альтобелли
Ханс Томанн
Original Assignee
Эксонмобил Апстрим Рисерч Компани
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 Эксонмобил Апстрим Рисерч Компани filed Critical Эксонмобил Апстрим Рисерч Компани
Publication of EA201691157A1 publication Critical patent/EA201691157A1/ru

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/14Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electron or nuclear magnetic resonance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/32Excitation or detection systems, e.g. using radio frequency signals
    • G01R33/34Constructional details, e.g. resonators, specially adapted to MR
    • G01R33/341Constructional details, e.g. resonators, specially adapted to MR comprising surface coils
    • G01R33/3415Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/445MR involving a non-standard magnetic field B0, e.g. of low magnitude as in the earth's magnetic field or in nanoTesla spectroscopy, comprising a polarizing magnetic field for pre-polarisation, B0 with a temporal variation of its magnitude or direction such as field cycling of B0 or rotation of the direction of B0, or spatially inhomogeneous B0 like in fringe-field MR or in stray-field imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/46NMR spectroscopy
    • G01R33/4616NMR spectroscopy using specific RF pulses or specific modulation schemes, e.g. stochastic excitation, adiabatic RF pulses, composite pulses, binomial pulses, Shinnar-le-Roux pulses, spectrally selective pulses not being used for spatial selection
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/483NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4838NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective suppression or saturation of MR signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Remote Sensing (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Geophysics And Detection Of Objects (AREA)

Abstract

Предусмотрены способы и системы для обнаружения материала в области Земли. Область может находиться под поверхностью глиняных отложений, льда, снега или воды. Способ может осуществляться на практике во множестве вариантов применения, например, в арктической области, чтобы обнаруживать разливы, утечки и просачивания нефти. Способы и системы могут включать в себя использование по меньшей мере одной катушки, чтобы передавать радиочастотный (RF) сигнал возбуждения в область Земли; и принимать любые ответные NMR-сигналы, чтобы определять присутствие интересующего материала.
EA201691157A 2013-12-04 2013-12-04 Способ и система для обнаружения материала в области земли EA201691157A1 (ru)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2013/073159 WO2015084347A1 (en) 2013-12-04 2013-12-04 Method and system for detection of a material within a region of the earth

Publications (1)

Publication Number Publication Date
EA201691157A1 true EA201691157A1 (ru) 2016-09-30

Family

ID=53273905

Family Applications (1)

Application Number Title Priority Date Filing Date
EA201691157A EA201691157A1 (ru) 2013-12-04 2013-12-04 Способ и система для обнаружения материала в области земли

Country Status (4)

Country Link
US (1) US10247844B2 (ru)
CA (1) CA2929291C (ru)
EA (1) EA201691157A1 (ru)
WO (1) WO2015084347A1 (ru)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8970217B1 (en) 2010-04-14 2015-03-03 Hypres, Inc. System and method for noise reduction in magnetic resonance imaging
NL2008016C2 (en) * 2011-12-22 2013-06-26 Univ Twente A nuclear magnetic resonance spectroscopy device.
US10585204B2 (en) * 2012-01-27 2020-03-10 Vista Clara Inc. Relaxation time estimation in surface NMR
US10120039B2 (en) 2015-11-20 2018-11-06 Lockheed Martin Corporation Apparatus and method for closed loop processing for a magnetic detection system
US10338162B2 (en) 2016-01-21 2019-07-02 Lockheed Martin Corporation AC vector magnetic anomaly detection with diamond nitrogen vacancies
US9910105B2 (en) 2014-03-20 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9829545B2 (en) 2015-11-20 2017-11-28 Lockheed Martin Corporation Apparatus and method for hypersensitivity detection of magnetic field
US9541610B2 (en) 2015-02-04 2017-01-10 Lockheed Martin Corporation Apparatus and method for recovery of three dimensional magnetic field from a magnetic detection system
US10168393B2 (en) 2014-09-25 2019-01-01 Lockheed Martin Corporation Micro-vacancy center device
US10088336B2 (en) 2016-01-21 2018-10-02 Lockheed Martin Corporation Diamond nitrogen vacancy sensed ferro-fluid hydrophone
US10088452B2 (en) 2016-01-12 2018-10-02 Lockheed Martin Corporation Method for detecting defects in conductive materials based on differences in magnetic field characteristics measured along the conductive materials
US9853837B2 (en) 2014-04-07 2017-12-26 Lockheed Martin Corporation High bit-rate magnetic communication
US9614589B1 (en) 2015-12-01 2017-04-04 Lockheed Martin Corporation Communication via a magnio
US10241158B2 (en) 2015-02-04 2019-03-26 Lockheed Martin Corporation Apparatus and method for estimating absolute axes' orientations for a magnetic detection system
US9910104B2 (en) 2015-01-23 2018-03-06 Lockheed Martin Corporation DNV magnetic field detector
US9638821B2 (en) 2014-03-20 2017-05-02 Lockheed Martin Corporation Mapping and monitoring of hydraulic fractures using vector magnetometers
GB2540308B (en) 2014-04-07 2018-05-16 Lockheed Corp Energy efficient controlled magnetic field generator circuit
KR20170108055A (ko) 2015-01-23 2017-09-26 록히드 마틴 코포레이션 자기 검출 시스템에서의 고감도 자력 측정 및 신호 처리를 위한 장치 및 방법
WO2016190909A2 (en) 2015-01-28 2016-12-01 Lockheed Martin Corporation Magnetic navigation methods and systems utilizing power grid and communication network
WO2016122965A1 (en) 2015-01-28 2016-08-04 Lockheed Martin Corporation In-situ power charging
CN105201496B (zh) * 2015-09-23 2018-03-09 中国石油大学(北京) 具有双层磁体的核磁共振测井仪探头及天线激励方法
CN105221145B (zh) * 2015-09-23 2017-12-12 中国石油大学(北京) 多方位核磁共振测井仪及天线激励方法
WO2017078766A1 (en) 2015-11-04 2017-05-11 Lockheed Martin Corporation Magnetic band-pass filter
EP3405603A4 (en) 2016-01-21 2019-10-16 Lockheed Martin Corporation DIAMOND NITROGEN SENSOR WITH SWITCHING ON DIAMOND
WO2017127095A1 (en) 2016-01-21 2017-07-27 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with common rf and magnetic fields generator
WO2017127096A1 (en) 2016-01-21 2017-07-27 Lockheed Martin Corporation Diamond nitrogen vacancy sensor with dual rf sources
WO2017127090A1 (en) 2016-01-21 2017-07-27 Lockheed Martin Corporation Higher magnetic sensitivity through fluorescence manipulation by phonon spectrum control
AU2016387314A1 (en) 2016-01-21 2018-09-06 Lockheed Martin Corporation Magnetometer with a light emitting diode
GB2562957A (en) 2016-01-21 2018-11-28 Lockheed Corp Magnetometer with light pipe
US10145910B2 (en) 2017-03-24 2018-12-04 Lockheed Martin Corporation Photodetector circuit saturation mitigation for magneto-optical high intensity pulses
US10571530B2 (en) 2016-05-31 2020-02-25 Lockheed Martin Corporation Buoy array of magnetometers
US10371765B2 (en) 2016-07-11 2019-08-06 Lockheed Martin Corporation Geolocation of magnetic sources using vector magnetometer sensors
US10281550B2 (en) 2016-11-14 2019-05-07 Lockheed Martin Corporation Spin relaxometry based molecular sequencing
US20170343621A1 (en) 2016-05-31 2017-11-30 Lockheed Martin Corporation Magneto-optical defect center magnetometer
US10359479B2 (en) 2017-02-20 2019-07-23 Lockheed Martin Corporation Efficient thermal drift compensation in DNV vector magnetometry
US10527746B2 (en) 2016-05-31 2020-01-07 Lockheed Martin Corporation Array of UAVS with magnetometers
US10317279B2 (en) 2016-05-31 2019-06-11 Lockheed Martin Corporation Optical filtration system for diamond material with nitrogen vacancy centers
US10274550B2 (en) 2017-03-24 2019-04-30 Lockheed Martin Corporation High speed sequential cancellation for pulsed mode
US10338163B2 (en) 2016-07-11 2019-07-02 Lockheed Martin Corporation Multi-frequency excitation schemes for high sensitivity magnetometry measurement with drift error compensation
US10228429B2 (en) 2017-03-24 2019-03-12 Lockheed Martin Corporation Apparatus and method for resonance magneto-optical defect center material pulsed mode referencing
US10330744B2 (en) 2017-03-24 2019-06-25 Lockheed Martin Corporation Magnetometer with a waveguide
US10345396B2 (en) 2016-05-31 2019-07-09 Lockheed Martin Corporation Selected volume continuous illumination magnetometer
US10345395B2 (en) * 2016-12-12 2019-07-09 Lockheed Martin Corporation Vector magnetometry localization of subsurface liquids
US10677953B2 (en) 2016-05-31 2020-06-09 Lockheed Martin Corporation Magneto-optical detecting apparatus and methods
US10408890B2 (en) 2017-03-24 2019-09-10 Lockheed Martin Corporation Pulsed RF methods for optimization of CW measurements
CN110168393B (zh) * 2017-01-13 2021-08-20 西门子医疗有限公司 低磁场强度下运行的磁共振断层成像设备和局部线圈矩阵
US10459041B2 (en) 2017-03-24 2019-10-29 Lockheed Martin Corporation Magnetic detection system with highly integrated diamond nitrogen vacancy sensor
US10379174B2 (en) 2017-03-24 2019-08-13 Lockheed Martin Corporation Bias magnet array for magnetometer
US10338164B2 (en) 2017-03-24 2019-07-02 Lockheed Martin Corporation Vacancy center material with highly efficient RF excitation
US10371760B2 (en) 2017-03-24 2019-08-06 Lockheed Martin Corporation Standing-wave radio frequency exciter
US10533858B2 (en) 2017-11-06 2020-01-14 International Business Machines Corporation Automated emergency response
CN107783200B (zh) * 2017-11-21 2019-06-07 吉林大学 一种联合emd与tfpf算法的全波磁共振信号随机噪声消减方法
US10620134B2 (en) * 2018-05-11 2020-04-14 Kla-Tencor Corp. Creating defect samples for array regions
US20210396905A1 (en) * 2020-06-22 2021-12-23 Rn Technologies, Llc Multi-Sensor Analysis for Autonomous Systems and Devices
US20220400061A1 (en) * 2021-06-10 2022-12-15 Rn Technologies, Llc Methods and systems for autonomous software defined network
CA3235866A1 (en) * 2021-06-18 2022-12-22 Terrasee Tech, LLC Determining presence and depth of materials in the earth
US20230044269A1 (en) * 2021-07-26 2023-02-09 Matthew Vreeland Apparatus and method for magnetic resonance material locator
CN117233849B (zh) * 2023-11-14 2024-01-30 吉林大学 一种基于稳态进动序列的磁共振隧道灾害水快速定位方法

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019383A (en) 1956-02-02 1962-01-30 Varian Associates Ground liquid prospecting method and apparatus
US3665446A (en) 1971-01-18 1972-05-23 Bell & Howell Co Apparatus for speaker actuated visual effects having mechanical display actuation
US4053406A (en) 1975-09-09 1977-10-11 Artec, Incorporated Apparatus and method for recovering oil from icy waters
US4022276A (en) 1976-02-13 1977-05-10 Marathon Oil Company Method of selecting oil recovery fluids using nuclear magnetic resonance measurements
US4449047A (en) 1981-10-26 1984-05-15 Sunoco Energy Development Co., A Wholly-Owned Subsidiary Of Sun Company, Inc. Airborne mineral exploration system
US4595878A (en) 1982-09-15 1986-06-17 Standard Oil Company (Indiana) NMR measurement on frozen cores
US4695799A (en) * 1985-06-18 1987-09-22 General Electric Company NMR magnetization inversion by non-linear adiabatic fast passage
US4769602A (en) 1986-07-02 1988-09-06 Shell Oil Company Determining multiphase saturations by NMR imaging of multiple nuclides
US4868500A (en) 1988-06-08 1989-09-19 Phillips Petroleum Company Method for determining properties of liquid-containing porous media using nuclear magnetic resonance imaging
GB9106789D0 (en) 1991-04-02 1991-05-22 Nat Res Dev Nqr methods and apparatus
US5433717A (en) 1993-03-23 1995-07-18 The Regents Of The University Of California Magnetic resonance imaging assisted cryosurgery
US5517115A (en) 1993-12-16 1996-05-14 Numar Corporation Efficient processing of NMR echo trains
EP0754307B1 (en) 1994-04-18 2000-03-01 Richard Hedley Clarke Fluid detection means
US5602477A (en) 1995-02-06 1997-02-11 The Regents Of The University Of California Nuclear magnetic resonance freezing sensor
US6345194B1 (en) 1995-06-06 2002-02-05 Robert S. Nelson Enhanced high resolution breast imaging device and method utilizing non-ionizing radiation of narrow spectral bandwidth
US5999836A (en) 1995-06-06 1999-12-07 Nelson; Robert S. Enhanced high resolution breast imaging device and method utilizing non-ionizing radiation of narrow spectral bandwidth
US6216540B1 (en) 1995-06-06 2001-04-17 Robert S. Nelson High resolution device and method for imaging concealed objects within an obscuring medium
US5673050A (en) 1996-06-14 1997-09-30 Moussally; George Three-dimensional underground imaging radar system
US6177797B1 (en) 1996-12-19 2001-01-23 Advanced Imaging Research, Inc. Radio-frequency coil and method for resonance/imaging analysis
US6177794B1 (en) 1997-05-13 2001-01-23 The Regents Of The University Of California Use of earth field spin echo NMR to search for liquid minerals
US6346813B1 (en) 1998-08-13 2002-02-12 Schlumberger Technology Corporation Magnetic resonance method for characterizing fluid samples withdrawn from subsurface formations
US6891369B2 (en) 1998-08-13 2005-05-10 Schlumberger Technology Corporation Nuclear magnetic resonance method and logging apparatus for fluid analysis
CA2342007C (en) 2001-03-26 2009-10-20 University Technologies International, Inc. Determination of oil and water compositions of oil/water emulsions using low field nmr relaxometry
US6621448B1 (en) 2002-04-05 2003-09-16 The Regents Of The University Of California Non-contact radar system for reconstruction of scenes obscured under snow and similar material
US6867589B2 (en) 2002-08-09 2005-03-15 Schlumberger Technology Corporation Method for detecting hydrocarbons from NMR data
US6690316B2 (en) 2002-09-27 2004-02-10 The United States Of America As Represented By The Secretary Of The Army System and method for automated alerting to geospatial anomalies
US6718266B1 (en) * 2002-10-31 2004-04-06 Schlumberger Technology Corporation Determination of dipole shear anisotropy of earth formations
US7423426B2 (en) 2004-02-09 2008-09-09 Baker Hughes Incorporated Selective excitation in earth's magnetic field nuclear magnetic resonance well logging tool
US8432167B2 (en) 2004-02-09 2013-04-30 Baker Hughes Incorporated Method and apparatus of using magnetic material with residual magnetization in transient electromagnetic measurement
US7859260B2 (en) * 2005-01-18 2010-12-28 Baker Hughes Incorporated Nuclear magnetic resonance tool using switchable source of static magnetic field
US7663363B2 (en) 2004-02-09 2010-02-16 Baker Hughes Incorporated Method and apparatus for high signal-to-noise ratio NMR well logging
US20100271030A1 (en) * 2005-01-18 2010-10-28 Baker Hughes Incorporated Borehole Transient EM System for Reservoir Monitoring
US8294468B2 (en) 2005-01-18 2012-10-23 Baker Hughes Incorporated Method and apparatus for well-bore proximity measurement while drilling
US7298142B2 (en) 2005-06-27 2007-11-20 Baker Hughes Incorporated Method and apparatus for reservoir fluid characterization in nuclear magnetic resonance logging
US7336071B2 (en) 2005-08-26 2008-02-26 Baker Hughes Incorporated Enhancement of NMR vertical resolution using walsh function based inversion
US7253617B1 (en) 2006-03-15 2007-08-07 Baker Hughes Incorporated Method and apparatus for characterizing heavy oil components in petroleum reservoirs
GB0701444D0 (en) 2007-01-25 2007-03-07 Iti Scotland Ltd Detecting analytes
EP1956395A1 (en) * 2007-02-06 2008-08-13 Services Pétroliers Schlumberger An antenna of an electromagnetic probe for investigating geological formations
US7768260B2 (en) 2007-02-23 2010-08-03 Baker Hughes Incorporated Methods for identification and quantification of multicomponent-fluid and estimating fluid gas/ oil ratio from NMR logs
US8633693B2 (en) * 2007-04-02 2014-01-21 The Regents Of The University Of California Rotating-frame gradient fields for magnetic resonance imaging and nuclear magnetic resonance in low fields
US7579833B2 (en) 2007-05-18 2009-08-25 Baker Hughes Incorporated Water mapping using surface NMR
GB0714442D0 (en) 2007-07-24 2007-09-05 Biota Guard As Method
US8436609B2 (en) * 2007-10-05 2013-05-07 Exxonmobil Upstream Research Company Method and apparatus for detection of a liquid under a surface
US8633695B2 (en) * 2008-08-13 2014-01-21 The Johns Hopkins University Adiabatic multi-band RF pulses for selective signal suppression in a magnetic resonance imaging
US20120165215A1 (en) 2009-06-26 2012-06-28 The Regents Of The University Of California Methods and systems for phylogenetic analysis
WO2012023926A1 (en) * 2010-08-16 2012-02-23 Halliburton Energy Services, Inc. Optimized arrays for look ahead-of-bit applications
WO2012092516A2 (en) * 2010-12-29 2012-07-05 Secureall Corporation Methods and systems for interference rejection for low signals
US9103889B1 (en) 2011-06-28 2015-08-11 Exxonmobil Upstream Research Company Surface NMR coil for thin samples
US9588068B2 (en) * 2013-01-22 2017-03-07 Vista Clara Inc. Combination NMR and dielectric measurement

Also Published As

Publication number Publication date
WO2015084347A1 (en) 2015-06-11
US10247844B2 (en) 2019-04-02
CA2929291A1 (en) 2015-06-11
US20160291191A1 (en) 2016-10-06
CA2929291C (en) 2019-07-09

Similar Documents

Publication Publication Date Title
EA201691157A1 (ru) Способ и система для обнаружения материала в области земли
MX2018009243A (es) Aparato, sistema y metodo para detectar una sustancia diana.
EA201992243A1 (ru) Мониторинг скважины и перекрывающих пород с использованием распределенных акустических датчиков
GB2533226A (en) Methods and systems for evaluation of rock permeability, porosity, and fluid composition
MX2017012250A (es) Sistema y metodo de deteccion de aguas subterraneas.
EA201690632A1 (ru) Системы электронного парамагнитного резонанса для оборудования по обеспечению потоков и для каротажа
WO2010077649A3 (en) Apparatus and methods for estimating downhole field compositions
WO2014006592A3 (en) Mapping hydrocarbon liquid properties of a kerogencontaining source rock
FR2978423B1 (fr) Procede et dispositif de detection de l'embarquement d'une gouverne d'aeronef
RU2017141102A (ru) Способ оценки водонасыщенности путем электромагнитных измерений
GB201205788D0 (en) Method and apparatus to determine if a control channel signal is malicous or non-malicous based on a gps location
EA201592174A1 (ru) Способ сепарации спорадических клеток из органических жидкостей и аппарат для осуществления указанного способа
GB201013269D0 (en) Alignment of synthetic aperture images
EA201390692A1 (ru) Система и способ дистанционного измерения
WO2009032996A3 (en) Seismic resonance imaging
EA201491683A1 (ru) Определение глубины и ориентации элемента в стволе скважины
BR112012030466A2 (pt) aparelho, sistema, e, método
GB2542035A (en) Methods and systems for detecting RFID tags in a borehole environment
MX2016002360A (es) Deteccion de alta resolucion de fallas en el interior del pozo mediante el uso de coincidencia de patrones.
WO2016073020A3 (en) Apparatus and method for monitoring and controlling detection of stray voltage anomalies using a photonic sensor
GB2526981A (en) Remote control switching device to control separate detection of a plurality of buried conductors
WO2014124254A3 (en) Interferometric processing detect subterranean geological boundaries
PH12018500706A1 (en) Radar detector with multi-band directional display and enhanced detection of false alerts
BR112019005012A2 (pt) dispositivo de ressonância magnética nuclear, e, método de caracterização de uma formação subterrânea
GB2512750A (en) Systems and methods for the determination of formation water resistivity and conductivity