NO20052985L - System og fremgangsmate for hydrokarbonreservoirovervaking ved bruk av elektromagnetiske felter fra kontrollerte kilder. - Google Patents

System og fremgangsmate for hydrokarbonreservoirovervaking ved bruk av elektromagnetiske felter fra kontrollerte kilder.

Info

Publication number
NO20052985L
NO20052985L NO20052985A NO20052985A NO20052985L NO 20052985 L NO20052985 L NO 20052985L NO 20052985 A NO20052985 A NO 20052985A NO 20052985 A NO20052985 A NO 20052985A NO 20052985 L NO20052985 L NO 20052985L
Authority
NO
Norway
Prior art keywords
fields
recovery
electromagnetic fields
signals
hydrocarbon reservoir
Prior art date
Application number
NO20052985A
Other languages
English (en)
Norwegian (no)
Other versions
NO20052985D0 (no
Inventor
Steven C Constable
Original Assignee
Univ California
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 Univ California filed Critical Univ California
Publication of NO20052985D0 publication Critical patent/NO20052985D0/no
Publication of NO20052985L publication Critical patent/NO20052985L/no

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
    • G01V3/12Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with electromagnetic waves
    • 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
    • G01V3/08Electric 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
    • G01V3/083Controlled source electromagnetic [CSEM] surveying
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A90/00Technologies having an indirect contribution to adaptation to climate change
    • Y02A90/30Assessment of water resources

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electromagnetism (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
NO20052985A 2002-12-10 2005-06-17 System og fremgangsmate for hydrokarbonreservoirovervaking ved bruk av elektromagnetiske felter fra kontrollerte kilder. NO20052985L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US43246702P 2002-12-10 2002-12-10
PCT/US2003/039309 WO2004053528A1 (en) 2002-12-10 2003-12-10 System and method for hydrocarbon reservoir monitoring using controlled-source electromagnetic fields

Publications (2)

Publication Number Publication Date
NO20052985D0 NO20052985D0 (no) 2005-06-17
NO20052985L true NO20052985L (no) 2005-09-07

Family

ID=32507935

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20052985A NO20052985L (no) 2002-12-10 2005-06-17 System og fremgangsmate for hydrokarbonreservoirovervaking ved bruk av elektromagnetiske felter fra kontrollerte kilder.

Country Status (9)

Country Link
US (1) US7109717B2 (pt)
EP (1) EP1579248A4 (pt)
CN (1) CN100339724C (pt)
AU (1) AU2003297846B2 (pt)
BR (1) BR0316781A (pt)
MX (1) MXPA05006215A (pt)
NO (1) NO20052985L (pt)
RU (1) RU2335788C2 (pt)
WO (1) WO2004053528A1 (pt)

Families Citing this family (93)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6842006B2 (en) 2002-06-27 2005-01-11 Schlumberger Technology Corporation Marine electromagnetic measurement system
US7023213B2 (en) 2002-12-10 2006-04-04 Schlumberger Technology Corporation Subsurface conductivity imaging systems and methods
GB2410090B (en) * 2002-12-10 2006-03-08 Schlumberger Holdings Subsurface imaging
GB2427482B (en) * 2004-07-02 2007-05-02 Ohm Ltd Electromagnetic surveying
WO2006026361A1 (en) * 2004-08-25 2006-03-09 The Regents Of The University Of California Three-axis marine electric field sensor for seafloor electrical resistivity measurement
US7317990B2 (en) 2004-10-25 2008-01-08 Schlumberger Technology Corporation Distributed processing system for subsurface operations
GB2420855B (en) 2004-12-02 2009-08-26 Electromagnetic Geoservices As Source for electromagnetic surveying
GB2422673B (en) * 2005-02-01 2010-03-24 Electromagnetic Geoservices As Optimum signal for sea bed logging
GB2423370B (en) 2005-02-22 2007-05-02 Ohm Ltd Electromagnetic surveying for resistive or conductive bodies
AU2006258149B2 (en) * 2005-06-10 2011-07-14 Exxonmobil Upstream Research Company Method for controlled source electromagnetic reconnaissance surveying
RU2005118534A (ru) * 2005-06-16 2006-12-27 Евгений Дмитриевич Лисицын (RU) Способ морской электроразведки нефтегазовых месторождений и аппаратурный комплекс для его осуществления "vesotem"
EA012769B1 (ru) 2005-09-19 2009-12-30 Эксонмобил Апстрим Рисерч Компани Способ осуществления электромагнитной разведки с управляемым источником с использованием множественных передатчиков
WO2007053251A1 (en) * 2005-11-01 2007-05-10 Exxonmobil Upstream Research Company Method for phase and amplitude correction in controlled source electromagnetic survey data
NO323889B1 (no) * 2005-11-03 2007-07-16 Advanced Hydrocarbon Mapping A Framgangsmate for kartlegging av hydrokarbonreservoarer samt apparat for anvendelse ved gjennomforing av framgangsmaten
CN100454040C (zh) * 2005-11-14 2009-01-21 吉林大学 浅海底瞬变电磁探测发射装置
WO2007068259A1 (fr) * 2005-12-15 2007-06-21 Zakrytoe Aktsionernoe Obschestvo 'emmet' Procede et dispositif de prospection electrique marine de gisements de gaz et de petrole
GB2435693A (en) * 2006-02-09 2007-09-05 Electromagnetic Geoservices As Seabed electromagnetic surveying
CA2639947C (en) 2006-02-14 2016-12-20 Exxonmobil Upstream Research Company Source monitoring for electromagnetic surveying
AU2006338605B2 (en) * 2006-02-21 2012-01-19 Exxonmobil Upstream Research Company Method for electromagnetic air-wave suppression by active cancellation and shielding
US20070216416A1 (en) * 2006-03-15 2007-09-20 Baker Hughes Incorporated Electromagnetic and Magnetostatic Shield To Perform Measurements Ahead of the Drill Bit
CA2650105C (en) 2006-05-04 2016-02-09 Exxonmobil Upstream Research Company Time lapse analysis with electromagnetic data
GB2439378B (en) * 2006-06-09 2011-03-16 Electromagnetic Geoservices As Instrument for measuring electromagnetic signals
AU2007273253B2 (en) * 2006-07-13 2010-07-22 Exxonmobil Upstream Research Company Method to maintain towed dipole source orientation
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
US20080048881A1 (en) * 2006-08-24 2008-02-28 Schlumberger Technology Corporation Technique and Apparatus to Track and Position Electromagnetic Receivers
WO2008028083A2 (en) * 2006-08-30 2008-03-06 The Regents Of University Of California Method and system for detecting and mapping hydrocarbon reservoirs using electromagnetic fields
GB2455664B (en) 2006-09-13 2011-02-16 Exxonmobil Upstream Res Co Rapid inversion of electromagnetic reconnaissance survey data
US8055446B2 (en) * 2006-10-11 2011-11-08 Byerly Kent A Methods of processing magnetotelluric signals
GB2442749B (en) 2006-10-12 2010-05-19 Electromagnetic Geoservices As Positioning system
US7504829B2 (en) * 2006-10-24 2009-03-17 Westerngeco L.L.C. Methods and apparatus for subsurface geophysical exploration using joint inversion of steady-state and transient data
NO326978B1 (no) * 2006-11-27 2009-03-30 Advanced Hydrocarbon Mapping As Framgangsmate for kartlegging av hydrokarbonreservoarer pa grunt vann samt apparat for anvendelse ved gjennomforing av framgangsmaten
GB2445582A (en) * 2007-01-09 2008-07-16 Statoil Asa Method for analysing data from an electromagnetic survey
US8169222B2 (en) 2007-04-26 2012-05-01 Exxonmobil Upstream Research Company Method for electroseismic survey design
US7872477B2 (en) * 2007-04-30 2011-01-18 Kjt Enterprises, Inc. Multi-component marine electromagnetic signal acquisition cable and system
CA2682010C (en) * 2007-04-30 2015-03-31 Kjt Enterprises, Inc. Multi-component marine electromagnetic signal acquisition cable, system and method
US8026723B2 (en) * 2007-04-30 2011-09-27 Kjt Enterprises, Inc. Multi-component marine electromagnetic signal acquisition method
US7746077B2 (en) * 2007-04-30 2010-06-29 Kjt Enterprises, Inc. Method for measuring the magnetotelluric response to the earth's subsurface
JP5571549B2 (ja) 2007-05-14 2014-08-13 オーシャン フロア ジオフィジックス インコーポレイテッド 地球物理学的方法及び地球物理学的システム
WO2008150748A1 (en) * 2007-05-31 2008-12-11 Zupt, Llc Method for determining the absolute orientation of subsea electromagnetic sensor arrays
GB2450158B (en) 2007-06-15 2009-06-03 Ohm Ltd Electromagnetic detector for marine surveying
WO2009017481A1 (en) * 2007-08-01 2009-02-05 Halliburton Energy Services, Inc. Remote processing of well tool sensor data and correction of sensor data on data acquisition systems
US8612194B2 (en) * 2007-08-08 2013-12-17 Westerngeco L.L.C. Updating a subterranean model using at least electromagnetic data
CA2703588C (en) 2007-12-12 2015-12-01 Exxonmobil Upstream Research Company Method and apparatus for evaluating submarine formations
NO328811B1 (no) * 2007-12-21 2010-05-18 Advanced Hydrocarbon Mapping A Framgangsmate og apparat for hurtig kartlegging av submarine hydrokarbonreservoarer
GB2458280B (en) * 2008-03-11 2011-02-23 Ohm Ltd Hydrocarbon reservoir surveying
WO2009131485A1 (ru) * 2008-04-22 2009-10-29 Закрытое Акционерное Общество "Еmmet" Генераторное устройство для морских геофизических исследований
US8063642B2 (en) * 2008-06-11 2011-11-22 Mtem Ltd Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources
US8386182B2 (en) 2008-06-24 2013-02-26 Exxonmobil Upstream Research Company Method for electromagnetic prospecting waveform design
NO329371B1 (no) 2008-10-10 2010-10-04 Advanced Hydrocarbon Mapping A Anordning ved mottaker for vertikal elektromagnetisk feltkomponent
US20100179762A1 (en) * 2009-01-12 2010-07-15 Baker Hughes Incorporated Method of Correcting Imaging Data For Standoff and Borehole Rugosity
RU2545472C2 (ru) * 2009-01-20 2015-03-27 Статойл Петролеум Ас Усовершенствованный способ электромагнитного исследования с управляемым источником
US8258791B2 (en) 2009-01-27 2012-09-04 Mtem Ltd. Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources to impart electromagnetic signals into a subsurface formation and thereby determining a formation response to each signal
NO332584B1 (no) * 2009-03-12 2012-11-05 Advanced Hydrocarbon Mapping As Framgangsmate og apparat for elektromagnetisk kartlegging av undersjoiske hydrokarbonforekomster basert pa sirkulering av derivatmagnetfeltmalinger
NO330702B1 (no) * 2009-03-20 2011-06-14 Advanced Hydrocarbon Mapping As Framgangsmate og apparat for elektromagnetisk kartlegging av undersjoiske hydrokarbonforekomster basert pa totalmagnetfeltmalinger
US8554482B2 (en) * 2009-05-05 2013-10-08 Baker Hughes Incorporated Monitoring reservoirs using array based controlled source electromagnetic methods
CN102741855B (zh) 2010-02-12 2016-10-26 埃克森美孚上游研究公司 用于将并行模拟模型分区的方法和系统
US9367564B2 (en) 2010-03-12 2016-06-14 Exxonmobil Upstream Research Company Dynamic grouping of domain objects via smart groups
US9588250B2 (en) 2010-04-14 2017-03-07 Baker Hughes Incorporated Three-coil system with short nonconductive inserts for transient MWD resistivity measurements
CA2802722C (en) 2010-07-27 2023-04-04 Exxonmobil Upstream Research Company Inverting geophysical data for geological parameters or lithology
CN102073046A (zh) * 2010-08-02 2011-05-25 电子科技大学 水下主动电场成像装置
EP2606452A4 (en) 2010-08-16 2017-08-16 Exxonmobil Upstream Research Company Reducing the dimensionality of the joint inversion problem
DE102010035261A1 (de) * 2010-08-24 2012-03-01 Arnim Kaus Verfahren und Messvorrichtung zur Erkundung von Kohlenwasserstoff-Reservoirs im Untergrund
CN102466822B (zh) * 2010-11-04 2013-09-04 中国石油天然气集团公司 一种海洋电磁勘探四极互组合布极方法
CA2823017A1 (en) 2011-01-26 2012-08-02 Exxonmobil Upstream Research Company Method of reservoir compartment analysis using topological structure in 3d earth model
US8797038B2 (en) * 2011-03-01 2014-08-05 Pgs Geophysical As High voltage DC power for electromagnetic survey source
US8816689B2 (en) * 2011-05-17 2014-08-26 Saudi Arabian Oil Company Apparatus and method for multi-component wellbore electric field Measurements using capacitive sensors
US9207355B2 (en) * 2011-05-26 2015-12-08 Baker Hughes Incorporated Method for physical modeling of reservoirs
US9453929B2 (en) 2011-06-02 2016-09-27 Exxonmobil Upstream Research Company Joint inversion with unknown lithology
WO2012173718A1 (en) 2011-06-17 2012-12-20 Exxonmobil Upstream Research Company Domain freezing in joint inversion
EP2734866B1 (en) 2011-07-21 2020-04-08 Exxonmobil Upstream Research Company Adaptive weighting of geophysical data types in joint inversion
US10139505B2 (en) 2011-08-09 2018-11-27 Pgs Geophysical As Digital sensor streamers and applications thereof
US8650963B2 (en) 2011-08-15 2014-02-18 Pgs Geophysical As Electrostatically coupled pressure sensor
US9239401B2 (en) * 2012-03-01 2016-01-19 Pgs Geophysical As Stationary source for marine electromagnetic surveying
US9632197B2 (en) 2013-03-06 2017-04-25 Pgs Geophysical As Silicon controlled rectifier control of sub-sea towed electromagnetic source
US10591638B2 (en) 2013-03-06 2020-03-17 Exxonmobil Upstream Research Company Inversion of geophysical data on computer system having parallel processors
US9846255B2 (en) 2013-04-22 2017-12-19 Exxonmobil Upstream Research Company Reverse semi-airborne electromagnetic prospecting
WO2014200685A2 (en) 2013-06-10 2014-12-18 Exxonmobil Upstream Research Company Interactively planning a well site
US9864098B2 (en) 2013-09-30 2018-01-09 Exxonmobil Upstream Research Company Method and system of interactive drill center and well planning evaluation and optimization
CN103590825A (zh) * 2013-10-26 2014-02-19 中国石油化工集团公司 一种瞬变电磁测井探头检测系统
WO2015088563A1 (en) 2013-12-13 2015-06-18 Halliburton Energy Services, Inc. Methods and systems of electromagnetic interferometry for downhole environments
RU2547538C1 (ru) * 2014-02-03 2015-04-10 Открытое акционерное общество "Тантал" (ОАО "Тантал") Способ дистанционного бесконтактного зондирования, каротажа пород и позиционирования снаряда в буровой скважине
CA2939361A1 (en) 2014-02-28 2015-09-03 Halliburton Energy Services, Inc. Optical electric field sensors having passivated electrodes
US9739905B2 (en) 2014-07-03 2017-08-22 Saudi Arabian Oil Company Electromagnetic time-lapse remote sensing of reservoir conditions
WO2016085511A1 (en) 2014-11-26 2016-06-02 Halliburton Energy Services, Inc. Onshore electromagnetic reservoir monitoring
WO2017083152A1 (en) * 2015-11-13 2017-05-18 Schlumberger Technology Corporation Method for placement of surface electrodes for electromagnetic telemetry
CN106597551B (zh) * 2016-12-02 2018-09-11 中国海洋大学 海底天然气水合物开采甲烷泄漏原位电学监测方法与装置
US10795043B2 (en) * 2017-02-28 2020-10-06 Pgs Geophysical As Towable electromagnetic source equipment
CN107677772A (zh) * 2017-09-19 2018-02-09 广州海洋地质调查局 海洋或者湖泊底部沉积物中的甲烷梯度测量系统
CA3076596C (en) * 2017-11-08 2022-04-12 Halliburton Energy Services, Inc. Offshore downhole telemetry using sea floor cable
WO2020122892A1 (en) * 2018-12-12 2020-06-18 Halliburton Energy Services, Inc. Borehole gravity analysis for reservoir management
US20210389391A1 (en) 2020-06-11 2021-12-16 Technoimaging, Llc System and Method for Reservoir Monitoring Using SQUID Magnetic Sensors
NO346411B1 (en) * 2021-03-03 2022-07-11 Captrol As Method and apparatus for performing a marine CSEM survey

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2293024A (en) * 1940-02-05 1942-08-11 Esme E Rosaire Method of electrical prospecting
US2531088A (en) * 1947-10-16 1950-11-21 Standard Oil Dev Co Electrical prospecting method
US2872638A (en) * 1955-03-31 1959-02-03 California Research Corp Ocean bottom stratigraphy surveying
US2839721A (en) * 1955-10-21 1958-06-17 Continental Oil Co Apparatus for logging the ocean floor
US3052836A (en) * 1957-12-24 1962-09-04 Shell Oil Co Method for marine electrical prospecting
US3182259A (en) * 1961-01-06 1965-05-04 Floyd P Holder Submodulation systems for carrier recreation and doppler correction in single-sideband zero-carrier communications
FR2288988A1 (fr) * 1974-07-30 1976-05-21 Duroux Jean Procede et appareil de prospection en mer par mesure de champs electromagnetiques
GB1588495A (en) * 1978-05-19 1981-04-23 Shell Int Research Method and means for waterbottom logging
US4617518A (en) * 1983-11-21 1986-10-14 Exxon Production Research Co. Method and apparatus for offshore electromagnetic sounding utilizing wavelength effects to determine optimum source and detector positions
CN1004585B (zh) * 1985-04-01 1989-06-21 科纳科公司 用地震及热流数据作碳氢化物的指标图
US4634804A (en) * 1985-05-17 1987-01-06 Geco Geophysical Company Incorporated Streamer cable with protective sheaths for conductor bundle
US5770945A (en) * 1996-06-26 1998-06-23 The Regents Of The University Of California Seafloor magnetotelluric system and method for oil exploration
US5777478A (en) * 1996-08-27 1998-07-07 John R. Jackson Passive geophysical prospecting apparatus and method based upon detection of discontinuities associated with extremely low frequency electromagnetic fields
NO315725B1 (no) * 1998-06-18 2003-10-13 Norges Geotekniske Inst Anordning for måling og overvåking av resistivitet utenfor et brönnrör i etpetroleumsreservoar
GB9818875D0 (en) * 1998-08-28 1998-10-21 Norske Stats Oljeselskap Method and apparatus for determining the nature of subterranean reservoirs
AU3622200A (en) * 1999-03-12 2000-09-28 Profile Technologies, Inc. Dynamic electromagnetic methods for direct prospecting for oil
MY131017A (en) 1999-09-15 2007-07-31 Exxonmobil Upstream Res Co Remote reservoir resistivity mapping
GB0002422D0 (en) * 2000-02-02 2000-03-22 Norske Stats Oljeselskap Method and apparatus for determining the nature of subterranean reservoirs
CN1246706C (zh) * 2000-08-14 2006-03-22 电磁地形服务公司 确定地下储层性质的方法和设备
GB2413188B (en) * 2001-08-07 2006-01-11 Electromagnetic Geoservices As Method and apparatus for determining the nature of subterranean reservoirs
GB2383133A (en) * 2001-08-07 2003-06-18 Statoil Asa Investigation of subterranean reservoirs
GB2382875B (en) * 2001-12-07 2004-03-03 Univ Southampton Electromagnetic surveying for hydrocarbon reservoirs
BR0311871A (pt) * 2002-06-11 2005-03-15 Univ California Método e sistema para pesquisa geológica do solo oceânico usando a medida do campo elétrico vertical

Also Published As

Publication number Publication date
WO2004053528A1 (en) 2004-06-24
EP1579248A1 (en) 2005-09-28
AU2003297846B2 (en) 2008-12-04
EP1579248A4 (en) 2010-03-17
MXPA05006215A (es) 2005-09-20
US20060038570A1 (en) 2006-02-23
CN100339724C (zh) 2007-09-26
RU2335788C2 (ru) 2008-10-10
NO20052985D0 (no) 2005-06-17
BR0316781A (pt) 2005-11-01
US7109717B2 (en) 2006-09-19
AU2003297846A1 (en) 2004-06-30
CN1723399A (zh) 2006-01-18
RU2005121573A (ru) 2006-01-20

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