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1969-03-06 |
1973-10-02 |
Barringer Research Ltd |
Geophysical exploration method using the vertical electric component of a vlf field as a reference
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1971-09-21 |
1974-04-02 |
Co D Applic Et De Diffusion De |
Method for determining the electrical resistivity of the subsoil by electromagnetic surface waves and apparatus for subsoil prospecting by measuring electromagnetic fields
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1973-07-18 |
1975-02-11 |
Exxon Production Research Co |
Method of mineral exploration by detecting electromagnetic energy at power line frequency
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1973-11-29 |
1976-02-03 |
Mcphar Geophysics Limited |
Method and means for investigating the distribution of electrical conductivity in the ground
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FR2288988A1
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1974-07-30 |
1976-05-21 |
Duroux Jean |
Procede et appareil de prospection en mer par mesure de champs electromagnetiques
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FR2390743A1
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1977-05-09 |
1978-12-08 |
Geophysique Cie Gle |
Prospection electromagnetique du sous-sol par induction, associee a une prospection par sondage electrique
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SE419269B
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1979-11-29 |
1981-07-20 |
Boliden Ab |
Forfarande och anordning for bestemning av markens elektriska ledningsformaga
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GB2132356B
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1982-12-17 |
1987-06-03 |
Shell Int Research |
A method and apparatus for correcting the relative motion of a transmitter and a receiver in airborne electromagnetic prospecting
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PL141895B1
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1983-03-03 |
1987-09-30 |
Instytut Gornictwa Naftowego Gaz |
Method of and system for direct prospecting of hydrocarbon accumulations
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JPS60142285A
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1983-12-29 |
1985-07-27 |
Hitachi Ltd |
レ−ダ−装置
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GB9818875D0
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1998-08-28 |
1998-10-21 |
Norske Stats Oljeselskap |
Method and apparatus for determining the nature of subterranean reservoirs
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GB0002422D0
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2000-02-02 |
2000-03-22 |
Norske Stats Oljeselskap |
Method and apparatus for determining the nature of subterranean reservoirs
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2000-05-01 |
2003-03-18 |
Schlumberger Technology Corporation |
Permanently emplaced electromagnetic system and method for measuring formation resistivity adjacent to and between wells
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BRPI0113208B8
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2000-08-14 |
2019-08-20 |
Electromagnetic Geoservices As |
métodos de determinação da natureza de um reservatório subterrâneo ou de procura de um reservatório subterrâneo com hidrocarbonetos, e, de levantamento de medições subterrâneas
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GB2382875B
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2001-12-07 |
2004-03-03 |
Univ Southampton |
Electromagnetic surveying for hydrocarbon reservoirs
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GB2385923B
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2002-05-24 |
2004-07-28 |
Statoil Asa |
System and method for electromagnetic wavefield resolution
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GB2390904B
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2002-07-16 |
2004-12-15 |
Univ Southampton |
Electromagnetic surveying for hydrocarbon reservoirs
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GB2399640B
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2003-03-17 |
2007-02-21 |
Statoil Asa |
Method and apparatus for determining the nature of submarine reservoirs
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GB2409900B
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2004-01-09 |
2006-05-24 |
Statoil Asa |
Processing seismic data representing a physical system
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GB2420855B
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2004-12-02 |
2009-08-26 |
Electromagnetic Geoservices As |
Source for electromagnetic surveying
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GB2434868B
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2006-02-06 |
2010-05-12 |
Statoil Asa |
Method of conducting a seismic survey
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GB2435693A
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2006-02-09 |
2007-09-05 |
Electromagnetic Geoservices As |
Seabed electromagnetic surveying
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GB2439378B
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2006-06-09 |
2011-03-16 |
Electromagnetic Geoservices As |
Instrument for measuring electromagnetic signals
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GB2442749B
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2006-10-12 |
2010-05-19 |
Electromagnetic Geoservices As |
Positioning system
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GB2445582A
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2007-01-09 |
2008-07-16 |
Statoil Asa |
Method for analysing data from an electromagnetic survey
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NZ581872A
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2007-05-14 |
2012-07-27 |
Ocean Floor Geophysics Inc |
Underwater electric field electromagnetic prospecting system
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