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| Number | Title | Issue Date |
| 8169222 | Method for electroseismic survey design A method for designing a controlled-source electromagnetic survey that will discriminate between a defined deep marginal-interest reservoir (2) and specified false positive resistivity structures of concern (3, 4, 5). A reservoir model and a false posi... | 05/01/2012 |
| 7948237 | Large airborne time-domain electromagnetic transmitter coil system and apparatus An airborne time domain electromagnetic survey system is provided. The system and apparatus of the present invention are able to address the interest in exploring base metals and uranium deposits at depths approaching 1 kilometer. It encompasses a transmitter coil h... | 05/24/2011 |
| 7432715 | Method and apparatus for metal detection employing digital signal processing A metal detector employing digital means for the generation of highly quality reference signals used for transmission and demodulation and capable of continuously monitoring the parameters of the transmitting and receiving coils. Using the monitored signals and cali... | 10/07/2008 |
| 7397111 | Semiconductor wafer, an electronic component, and a component carrier for producing the electronic component An electronic component includes a semiconductor chip with a chip topside, an integrated circuit, and a chip backside. The chip backside includes a magnetic layer. The electronic component further includes a chip carrier with a magnetic layer on its carrier topside.... | 07/08/2008 |
| 7397417 | Electromagnetic impulse survey apparatus and method utilizing a magnetic component electromagnetic antenna The invention relates to an apparatus and method for performing passive geophysical prospecting. More particularly, the present invention relates to an improved apparatus and method for locating and selected subsurface Earth material deposits or geologic formations ... | 07/08/2008 |
| 7375529 | Induction magnetometer An array of induction magnetometers for use in airborne transient electromagnetic (ATEM) geophysical exploration is disclosed, having similar weight and external dimensions of prior art induction magnetometers but with improved signal strength, signal-to-noise ratio... | 05/20/2008 |
| 7365544 | Methods of adjusting airborne geophysical measurements based on mapping instrument measurements This invention concerns a method of making airborne geophysical measurements. Such measurements may be made from fixed or moving wing airplanes or dirigibles. The method comprises the following steps: taking first real time measurements from one, or more, geophysica... | 04/29/2008 |
| 7292943 | System and method for control of seismic data acquisition The present invention provides an interactive system for controlling seismic data acquisition. A central controller controls seismic sources, detectors and receivers. A user/operator is provided one or more views of the operational components over a graphical user i... | 11/06/2007 |
| 7269095 | Synchronization of seismic data acquisition systems A network distributed seismic data acquisition system comprises seismic receivers connected to remote acquisition modules, receiver lines, line tap units, base lines, a central recording system and a seismic source event generation unit synchronized to a master cloc... | 09/11/2007 |
| 7266406 | Magnetic resonance apparatus In a magnetic resonance apparatus, the transmission coil for generating the radiofrequency excitation field is stationarily arranged. The geometry of the transmission coil is permanently prescribed. For acquiring the magnetic resonance signal, the reception arrangem... | 09/04/2007 |
| 7262601 | Aircraft equipped for airborne vector magnetic exploration surveys An aircraft equipped for airborne vector magnetic exploration surveys comprising three magnetometers orthogonally mounted to measure the components of the earth's vector magnetic field; two rotation sensors mounted to measure the angular orientation of the aircraft;... | 08/28/2007 |
| 7248052 | Electric power grid induced geophysical prospecting method and apparatus A geophysical prospecting method and apparatus that utilizes the harmonics and sub harmonics waves induced into the earth by the electric power grid. The amplitude-frequency data are converted to amplitude-depth data and further converted to a differential curve. Th... | 07/24/2007 |
| 7236885 | Method and system for geophysical data acquisition on an airship A geophysical survey is conducted, using specialized instruments, to measure the gravity field by flying over a terrain of interest. A series of nominally parallel survey lines can be flown until a total region to be surveyed has been covered. The geophysical survey... | 06/26/2007 |
| 7227362 | Electric power grid induced geophysical prospecting method and apparatus An underground prospecting method and apparatus that utilizes the harmonics and fractional harmonic waves induced into the earth by the electric power grid. The data are converted to amplitude-depth and phase-depth data. The resulting data may be plotted and are com... | 06/05/2007 |
| 7222020 | System and method for determining oil or mineral deposits A system and method determines the probability of oil or mineral deposits. At least one data collection device collects elevation slope, magnetic and gravity data sets for a predetermined area of the earth's surface. A processor receives the elevation slope, magneti... | 05/22/2007 |
| 7082706 | Systems and methods for creating aerial messages Systems and methods are disclosed for creating aerial messages using multiple aircraft. Each of the aircraft includes a control box located in the aircraft for receiving data from and transmitting data to a software program running on a main computer. The systems an... | 08/01/2006 |
| 7081744 | Cable location continuously determining apparatus, cable location continuously determining method, and cable location continuously determining program The apparatus can continuously determine the location at which a cable is buried. Location data of a measurement standard position is acquired by RTK-GPS. The azimuth of the moving direction of the apparatus is calculated using the location data. Electromagnetic wav... | 07/25/2006 |
| 7031663 | System for performing environmental measurements and for transferring measurement results Automatic environmental measuring stations (10, 10a, 10b, 10c) are connected in a physical connection with base stations (11; 11a; 11b; 11c) of a cellular radio system which stations... | 04/18/2006 |
| 7031839 | Multi-frequency focusing for MWD resistivity tools An induction logging tool is used on a MWD bottom hole assembly. Due to the finite, nonzero, conductivity of the mandrel, conventional multi frequency focusing (MFF) does not work. A correction is made to the induction logging data to give measurements simulating a ... | 04/18/2006 |
| 7013745 | Unattended ground sensor assembly There is provided a ground sensor assembly adapted for deployment from air to a selected ground location. The ground sensor assembly comprises an aerially deployable sensor housing which has upper and lower housing ends defining a longitudinally elongated aperture t... | 03/21/2006 |
| 7002349 | Remote sensing electric field exploration system An airborne exploration system used with an aircraft for shallow and deep exploration for oil and gas, mineral deposits and aquifers. The survey system uses natural electromagnetic EM fields as an energy source. The exploration system includes a pair of aerodynamic ... | 02/21/2006 |
| 6977505 | Method for locating underground fluid sources The present invention discloses a method for finding and analyzing underground magnetic anomalies. The method includes measuring magnetic signatures of the magnetic anomalies, interpreting the magnetic signatures to determine that the magnetic signatures are magneti... | 12/20/2005 |
| 6954698 | System and method for surveying underground density distributions A method for geographical surveying includes the steps of determining an observation grid comprising observation points above a solution volume in the ground; making gravitational measurements at the observation points over a survey area; compiling a matrix having e... | 10/11/2005 |
| 6876202 | System, method and computer product geological surveying utilizing natural electromagnetic fields A system, computer product and method for generating geophysical data is provided. At least one airborne sensor unit is provided which measures low frequency natural electromagnetic fields. Geophysical data is extrapolated from the tilt angles of the electromagnetic... | 04/05/2005 |
| 6870370 | Electromagnetic induction detection system A airborne electromagnetic induction (EMI) detection apparatus and system. In accordance with one embodiment, the EMI detection apparatus includes a transmitter element in the form of a transmitter coil that emits a primary, multi-frequency component magnetic field ... | 03/22/2005 |
| 6845936 | Stable heli-borne vector platform for performing geophysical measurements A stable heli-borne vector platform capable of accepting a range of different sensors or instruments, particularly, but not exclusively, for the mapping and exploration of mountainous regions is described. The platform enables the arrangement of the sensors in three... | 01/25/2005 |
| 6765383 | Magnetotelluric geophysical survey system using an airborne survey bird A magnetotelluric geophysical survey system used with an airborne survey bird for natural resource exploration of oil and gas, mineral deposits and aquifers. The survey system uses natural electromagnetic EM fields as an energy source. The magnetotelluric airborne s... | 07/20/2004 |
| 6718278 | Location system A location system for objects having location devices (16) as a means for repeatedly interrogating the location devices on each object to provide position signals. A means (18) to detect the position signals are provided. The position of each object an... | 04/06/2004 |
| 6707301 | External magnetic field measuring method, static magnetic field correcting method, external magnetic field measuring apparatus, and MRI system In order to nullify the adverse effect of an external magnetic field on a static magnetic field generated in an MRI system, small-size coils are used to generate a compensation magnetic field. Thus, the component of the static magnetic field to be applied to a magne... | 03/16/2004 |
| 6546344 | Magnetic anomaly sensor system The present invention is directed to a method and apparatus for measuring a magnetic field and determining whether an anomaly is present based on the magnetic field measurement and a measured ambient magnetic field. The present invention is also directed ... | 04/08/2003 |
| 6483309 | Power frequency magnetic field (PF-MF) detection systems and operating methods therefor The present invention provides a power frequency, i.e., time-varying, magnetic field (PF-NF) detector system for characterizing the operational condition of a remote facility responsive to time-varying magnetic fields generated by electrical transmission ... | 11/19/2002 |
| 6369573 | Apparatus for reducing rotation of a towed airborne article An apparatus for reducing rotation of an article such as a bird for holding a superconducting quantum interference device for use in airborne transient electromagnetic mineral prospecting. The apparatus includes a support sphere having an inner shell and ... | 04/09/2002 |
| 6311128 | Combined navigation and mobile communication satellite architecture A navigation and mobile communication satellite system including a Geo-Mobile (GEM) satellite (14) and a plurality of Global Position System (GPS) satellites (50). The GEM satellite (14) is in operative communication with at least one ground segment (12) ... | 10/30/2001 |
| 6255825 | Method and apparatus for detecting, locating and resolving buried pipelines, cased wells and other ferrous objects A method and apparatus are provided for surveying a given region for the presence of ferromagnetic items and other sources of magnetic field disturbance on or under the ground, such as pipelines and wellheads, etc. An array of magnetic field sensors, moun... | 07/03/2001 |
| 6244534 | Airborne electromagnetic system A towed aircraft for use in an airborne electromagnetic geophysical prospecting system which includes a transmitting antenna and power generating means for powering the antenna. A bird to which is mounted a receiving antenna may be towed by the towed airc... | 06/12/2001 |
| 4904940 | Fiber-optic multicomponent magnetic field gradiometer for first, second and higher order derivatives A fiber-optic magnetic field gradiometer uses a plurality of magnetic transducers to simultaneously determine multicomponents of the gradient and field strength of an external magnetic field so as to permit accurate determination of the location of a ferr... | 02/27/1990 |
| 4814711 | Survey system and method for real time collection and processing of geophysicals data using signals from a global positioning satellite network A real time geophysical survey system and method. The system comprises a base station, one or more data acquisition vehicles, and a global positioning satellite network. The base station is provided with a computer, radio communication equipment, and mean... | 03/21/1989 |
| 4686474 | Survey system for collection and real time processing of geophysical data A real time geophysical survey system and method. The system comprises a base station, one or more data acquisition vehicles, and one or more fixed reference stations. The base station is provided with a positioning system, suitable survey instrumentation... | 08/11/1987 |
| 4590425 | Magnetic detector apparatus with excitation conductors connected in series via sensor housing Magnetic detector apparatus comprises a pair of electrically matched magnetic sensor assemblies supported at opposite ends of a titanium sensor tube of significant length. The sensor tube is supported in a liquid bath so as to resist gravitational forces ... | 05/20/1986 |
| 4570122 | Magnetic exploration with reduction of magnetic data to the equator A method of reducing magnetic data recorded at latitudes close to the magnetic equator to the equator is disclosed. The result corrects magnetic field anomalies recorded with respect to geologic anomalies to more closely reflect the shape of the geologic ... | 02/11/1986 |
