BRPI0507666A - inspeção eletromagnética para corpos resistivos ou condutivos - Google Patents

inspeção eletromagnética para corpos resistivos ou condutivos

Info

Publication number
BRPI0507666A
BRPI0507666A BRPI0507666-8A BRPI0507666A BRPI0507666A BR PI0507666 A BRPI0507666 A BR PI0507666A BR PI0507666 A BRPI0507666 A BR PI0507666A BR PI0507666 A BRPI0507666 A BR PI0507666A
Authority
BR
Brazil
Prior art keywords
data
combined response
field data
inspection
electric field
Prior art date
Application number
BRPI0507666-8A
Other languages
English (en)
Inventor
Lucy M Macgregor
David Andreis
Michael Tompkins
Original Assignee
Ohm Ltd
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 Ohm Ltd filed Critical Ohm Ltd
Publication of BRPI0507666A publication Critical patent/BRPI0507666A/pt

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
    • G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
    • G01V3/083—Controlled source electromagnetic [CSEM] surveying
    • 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
    • G01V3/12—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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
    • G01V3/15—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat
    • G01V3/165—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for use during transport, e.g. by a person, vehicle or boat operating with magnetic or electric fields produced or modified by the object or by the detecting device
    • 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
    • G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30—Assessment of water resources

Abstract

INSPEçãO ELETROMAGNéTICA PARA CORPOS RESISTIVOS OU CONDUTIV0S. Um método de análise de dados de inspeção eletromagnética de uma área de fundo do mar (6) que é imaginada ou conhecida por conter um corpo condutivo ou resistivo, tal como um reservatório subterrâneo de hidrocarboneto (12), é descrito. O método inclui prover dados de campo elétrico e dados de campo magnético, por exemplo, densidade do fluxo magnético, obtidos por pelo menos um receptor (25) de um transmissor (22) de dipolo elétrico horizontal (HED) e determinar um gradiente vertical nos dados do campo elétrico. Os gradientes verticais nos dados do campo elétrico e nos dados do campo magnético são então combinados para gerar dados de resposta combinados. Os dados de resposta combinados são comparados com dados de experiência específicos para a área sendo inspecionada para obter dados de diferença sensíveis à presença de um reservatório de hidrocarboneto subterrâneo. Porque os dados de resposta combinados são relativamente insensíveis ao componente do modo elétrico transversal (TE) do sinal transmitido, o método permite que os reservatórios de hidrocarboneto sejam detectados em águas rasas onde o componente do modo TE interagindo com o ar, de outra forma, dominaria. Além do mais, porque não existe mistura entre os modos TE e magnético transversal (TM) nos dados de resposta combinados, os dados de todas as orientações possíveis de transmissor e receptor podem ser usados. Os dados de experiência podem ser providos pela inspeção magnetotelúrica, inspeção eletromagnética de fonte controlada ou de medição geofísica direta.
BRPI0507666-8A 2004-02-16 2005-02-03 inspeção eletromagnética para corpos resistivos ou condutivos BRPI0507666A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0403372A GB2411006B (en) 2004-02-16 2004-02-16 Electromagnetic surveying for hydrocarbon reservoirs
PCT/GB2005/000360 WO2005081016A1 (en) 2004-02-16 2005-02-03 Electromagnetic surveying for resistive or conductive bodies

Publications (1)

Publication Number Publication Date
BRPI0507666A true BRPI0507666A (pt) 2007-07-17

Family

ID=32011970

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0507666-8A BRPI0507666A (pt) 2004-02-16 2005-02-03 inspeção eletromagnética para corpos resistivos ou condutivos

Country Status (8)

Country Link
US (1) US8099239B2 (pt)
EP (1) EP1714169A1 (pt)
AU (1) AU2005215434B2 (pt)
BR (1) BRPI0507666A (pt)
CA (1) CA2555994C (pt)
GB (1) GB2411006B (pt)
NO (1) NO339645B1 (pt)
WO (1) WO2005081016A1 (pt)

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WO2007094846A2 (en) * 2006-02-14 2007-08-23 Exxonmobil Upstream Research Company Source monitoring for electromagnetic surveying
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GB2439378B (en) 2006-06-09 2011-03-16 Electromagnetic Geoservices As Instrument for measuring electromagnetic signals
US7657391B2 (en) 2006-07-14 2010-02-02 Westerngeco L.L.C. Electromagnetically detecting thin resistive bodies in shallow water and terrestrial environments
US7860655B2 (en) 2006-07-14 2010-12-28 Westerngeco L.L.C. Electromagnetically detecting thin resistive bodies in shallow water and terrestrial environments
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US7400977B2 (en) 2006-10-12 2008-07-15 Schlumberger Technology Corporation Computing values for surveying a subterranean structure based on measurements according to different electromagnetic survey techniques
US20080169817A1 (en) * 2006-11-01 2008-07-17 Schlumberger Technology Corporation Determining an Electric Field Based on Measurement from a Magnetic Field Sensor for Surveying a Subterranean Structure
GB2445582A (en) * 2007-01-09 2008-07-16 Statoil Asa Method for analysing data from an electromagnetic survey
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US8148992B2 (en) 2007-05-14 2012-04-03 Ocean Floor Geophysics, Inc. Underwater electric field electromagnetic prospecting system
GB2450158B (en) 2007-06-15 2009-06-03 Ohm Ltd Electromagnetic detector for marine surveying
US7565245B2 (en) 2007-09-20 2009-07-21 Ohm Limited Electromagnetic surveying
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US8010291B2 (en) 2008-11-08 2011-08-30 Westerngeco L.L.C. Processing measurement data that involves computing a derivative of the measurement data that represents a subterranean structure
WO2010084138A1 (en) * 2009-01-20 2010-07-29 Statoil Asa Improved csem survey method
US10024995B2 (en) * 2009-01-29 2018-07-17 Schlumberger Technology Corporation System and method for elevated source to borehole electromagnetic survey
US8554482B2 (en) 2009-05-05 2013-10-08 Baker Hughes Incorporated Monitoring reservoirs using array based controlled source electromagnetic methods
US8344721B2 (en) * 2010-01-07 2013-01-01 Vaisala Oyj Method for locating sub-surface natural resources
CA2802722C (en) 2010-07-27 2023-04-04 Exxonmobil Upstream Research Company Inverting geophysical data for geological parameters or lithology
EP2606452A4 (en) 2010-08-16 2017-08-16 Exxonmobil Upstream Research Company Reducing the dimensionality of the joint inversion problem
EP2715603A4 (en) 2011-06-02 2016-07-13 Exxonmobil Upstream Res Co JOINT INVERSION WITH UNKNOWN LITHOLOGY
EP2721478A4 (en) 2011-06-17 2015-12-02 Exxonmobil Upstream Res Co FREEZING OF DOMAINS IN A CONNECTION VERSION
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Also Published As

Publication number Publication date
NO20064184L (no) 2006-09-15
US20070288211A1 (en) 2007-12-13
WO2005081016A1 (en) 2005-09-01
CA2555994A1 (en) 2005-09-01
AU2005215434A1 (en) 2005-09-01
EP1714169A1 (en) 2006-10-25
GB2411006B (en) 2006-01-25
AU2005215434B2 (en) 2007-09-27
NO339645B1 (no) 2017-01-16
GB0403372D0 (en) 2004-03-17
US8099239B2 (en) 2012-01-17
GB2411006A (en) 2005-08-17
CA2555994C (en) 2013-11-19

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Owner name: OFFSHORE HYDROCARBON MAPPING PLC (GB)

Free format text: TRANSFERIDO DE: OHM LIMITED

B25D Requested change of name of applicant approved

Owner name: ROCK SOLID IMAGES PLC (GB)

B25A Requested transfer of rights approved

Owner name: ROCK SOLID IMAGES, INC (US)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09B Patent application refused [chapter 9.2 patent gazette]
B12B Appeal against refusal [chapter 12.2 patent gazette]