|
SE419269B
(sv)
*
|
1979-11-29 |
1981-07-20 |
Boliden Ab |
Forfarande och anordning for bestemning av markens elektriska ledningsformaga
|
|
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
|
|
US5157605A
(en)
*
|
1987-04-27 |
1992-10-20 |
Schlumberger Technology Corporation |
Induction logging method and apparatus including means for combining on-phase and quadrature components of signals received at varying frequencies and including use of multiple receiver means associated with a single transmitter
|
|
US4965522A
(en)
*
|
1988-11-09 |
1990-10-23 |
Schlumberger Technology Corporation |
Multifrequency signal transmitter with attenuation of selected harmonies for an array induction well logging apparatus
|
|
US5119028A
(en)
*
|
1990-04-26 |
1992-06-02 |
Grumman Aerospace Corporation |
Method and system for determining the depth of an electrically conductive body in a medium having a known conductivity and a known permeability by measuring phase difference between a primary and secondary magnetic field
|
|
US5892362A
(en)
*
|
1994-01-13 |
1999-04-06 |
Jesse G. Robison |
Method and apparatus for spacially continuous two-dimensional imaging of subsurface conditions through surface induction techniques
|
|
US5652519A
(en)
*
|
1994-01-13 |
1997-07-29 |
Jesse G. Robison |
Method and apparatus for measuring pollutants contaminating earth formation
|
|
GB9818875D0
(en)
|
1998-08-28 |
1998-10-21 |
Norske Stats Oljeselskap |
Method and apparatus for determining the nature of subterranean reservoirs
|
|
GB0002422D0
(en)
*
|
2000-02-02 |
2000-03-22 |
Norske Stats Oljeselskap |
Method and apparatus for determining the nature of subterranean reservoirs
|
|
WO2002014906A1
(en)
*
|
2000-08-14 |
2002-02-21 |
Statoil Asa |
Method and apparatus for determining the nature of subterranean reservoirs
|
|
GB2383133A
(en)
|
2001-08-07 |
2003-06-18 |
Statoil Asa |
Investigation of subterranean reservoirs
|
|
GB2378511B
(en)
|
2001-08-07 |
2005-12-28 |
Statoil Asa |
Method and apparatus for determining the nature of subterranean reservoirs
|
|
GB2382875B
(en)
*
|
2001-12-07 |
2004-03-03 |
Univ Southampton |
Electromagnetic surveying for hydrocarbon reservoirs
|
|
GB2385923B
(en)
*
|
2002-05-24 |
2004-07-28 |
Statoil Asa |
System and method for electromagnetic wavefield resolution
|
|
CN100395562C
(zh)
|
2002-06-11 |
2008-06-18 |
加利福尼亚大学董事会 |
采用垂直电场测量的海底地质勘测方法及系统
|
|
CN100339724C
(zh)
*
|
2002-12-10 |
2007-09-26 |
加利福尼亚大学董事会 |
利用受控源电磁场监测碳氢化合物储藏层的系统和方法
|
|
GB2399640B
(en)
|
2003-03-17 |
2007-02-21 |
Statoil Asa |
Method and apparatus for determining the nature of submarine reservoirs
|
|
GB2409900B
(en)
|
2004-01-09 |
2006-05-24 |
Statoil Asa |
Processing seismic data representing a physical system
|
|
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
|
|
GB2420855B
(en)
|
2004-12-02 |
2009-08-26 |
Electromagnetic Geoservices As |
Source for electromagnetic surveying
|
|
US7884612B2
(en)
*
|
2005-12-22 |
2011-02-08 |
Westerngeco L.L.C. |
Multi-component field sources for subsea exploration
|
|
GB2434868B
(en)
|
2006-02-06 |
2010-05-12 |
Statoil Asa |
Method of conducting a seismic survey
|
|
GB2435693A
(en)
|
2006-02-09 |
2007-09-05 |
Electromagnetic Geoservices As |
Seabed electromagnetic surveying
|
|
GB2439378B
(en)
|
2006-06-09 |
2011-03-16 |
Electromagnetic Geoservices As |
Instrument for measuring electromagnetic signals
|
|
US8253418B2
(en)
*
|
2006-08-30 |
2012-08-28 |
The Regents Of The University Of California |
Method and system for detecting and mapping hydrocarbon reservoirs using electromagnetic fields
|
|
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
|
|
ITBO20060811A1
(it)
*
|
2006-11-29 |
2008-05-30 |
Pierburg Spa |
Pompa ad olio a palette a cilindrata variabile.
|
|
GB2445582A
(en)
|
2007-01-09 |
2008-07-16 |
Statoil Asa |
Method for analysing data from an electromagnetic survey
|
|
NZ581872A
(en)
|
2007-05-14 |
2012-07-27 |
Ocean Floor Geophysics Inc |
Underwater electric field electromagnetic prospecting system
|
|
US8063642B2
(en)
*
|
2008-06-11 |
2011-11-22 |
Mtem Ltd |
Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources
|
|
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
|
|
US20100235100A1
(en)
*
|
2009-03-16 |
2010-09-16 |
Bruce Alan Hobbs |
Method for determining resistivity anisotropy from earth electromagnetic responses
|
|
US20110012601A1
(en)
*
|
2009-07-15 |
2011-01-20 |
Bruce Alan Hobbs |
Method for determining resistivity anisotropy from earth electromagnetic tansient step response and electromagnetic transient peak impulse response
|
|
US9335432B2
(en)
|
2010-08-30 |
2016-05-10 |
King Abdulaziz City For Science And Technology |
Semi-permeable terrain geophysical data acquisition
|
|
US8587316B2
(en)
|
2011-12-08 |
2013-11-19 |
Pgs Geophysical As |
Noise reduction systems and methods for a geophysical survey cable
|
|
US8922214B2
(en)
|
2011-12-27 |
2014-12-30 |
Pgs Geophysical As |
Electromagnetic geophysical survey systems and methods employing electric potential mapping
|
|
US9624900B2
(en)
|
2012-10-29 |
2017-04-18 |
Energystics, Ltd. |
Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
|
|
US8629572B1
(en)
|
2012-10-29 |
2014-01-14 |
Reed E. Phillips |
Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
|
|
US10011910B2
(en)
|
2012-10-29 |
2018-07-03 |
Energystics, Ltd. |
Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
|
|
US11061160B1
(en)
|
2015-07-24 |
2021-07-13 |
Doc Mapping, L.L.C. |
System and methods of mapping buried pipes underwater
|
|
US10047717B1
(en)
|
2018-02-05 |
2018-08-14 |
Energystics, Ltd. |
Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
|
|
CN113064209B
(zh)
*
|
2021-04-14 |
2021-11-26 |
杭州电子科技大学 |
一种海底电缆的地磁探测方法
|