| Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929) |
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| 08/22/2012 | CN102645676A Tracking and monitoring method for earth magnetic pole |
| 08/22/2012 | CN102645675A Magnetoresistive sensor and method for manufacturing same |
| 08/22/2012 | CN102645674A Three-dimensional detection method for use before exploitation of working surface coal bed |
| 08/22/2012 | CN102645673A Inductive proximity sensor |
| 08/22/2012 | CN102645672A Detection device and detection method of position of metal piece in rubber pipe |
| 08/22/2012 | CN101799556B Extremely low frequency transmitting and receiving system and device |
| 08/22/2012 | CN101713285B Calculation method for measuring distance between adjacent wells by electromagnetic detection while drilling |
| 08/22/2012 | CN101477211B Magnetic anomaly detection system |
| 08/22/2012 | CA2776708A1 Method and system for mapping a geological structure of a formation on one side of a surface using magnetic moments of different values |
| 08/21/2012 | US8249812 Characterizing an earth subterranean structure by iteratively performing inversion based on a function |
| 08/21/2012 | US8248266 Bidirectional telemetry apparatus and methods for wellbore operations |
| 08/21/2012 | US8248073 Semiconductor integrated circuit and testing method therefor |
| 08/21/2012 | US8248072 Method and apparatus for automated raw material screening |
| 08/21/2012 | US8248071 Methods of using combined forward and backward sampling of nuclear magnetic resonance time domain for measurement of secondary phase shifts, detection of absorption mode signals devoid of dispersive components, and/or optimization of nuclear magnetic resonance experiments |
| 08/21/2012 | US8248070 MRI using prep scan sequence producing phase-offset NMR signals from different NMR species |
| 08/21/2012 | US8248069 Detecting spin perturbations using magnetic resonance imaging |
| 08/21/2012 | US8248068 Hyperpolarization of lithium and other nuclei |
| 08/21/2012 | US8248067 Apparatus and methods for estimating downhole fluid compositions |
| 08/21/2012 | US8248056 Buried object locator system employing automated virtual depth event detection and signaling |
| 08/21/2012 | CA2484104C Method and apparatus for mapping the trajectory in the subsurface of a borehole |
| 08/21/2012 | CA2424472C Transformer probe |
| 08/16/2012 | WO2012109433A2 Inversion-based method to correct for the pipe residual signal in transient mwd measurements |
| 08/16/2012 | WO2012107922A1 Stud detector |
| 08/16/2012 | WO2012107108A1 Signal and power transmission in hydrocarbon wells |
| 08/16/2012 | WO2012107107A1 Improved electro-magnetic antenna for wireless communication and inter-well electro-magnetic characterization in hydrocarbon production wells |
| 08/16/2012 | WO2012058443A3 Imaging in oil-based mud by synchronizing phases of currents injected into a formation |
| 08/16/2012 | WO2012027630A3 Apparatus and method for microresistivity imaging in nonconductive drilling fluid |
| 08/16/2012 | US20120209527 Concentric buttons of different sizes for imaging and standoff correction |
| 08/16/2012 | US20120209525 Method for geo-electrical prospection |
| 08/16/2012 | US20120206144 Method and Apparatus for Monitoring Cement Sheath Degradation Related to CO2 Exposure |
| 08/16/2012 | DE102011011179A1 Handmetalldetektor Hand Held Metal Detector |
| 08/16/2012 | CA2826802A1 Inversion-based method to correct for the pipe residual signal in transient mwd measurements |
| 08/16/2012 | CA2826671A1 Signal and power transmission in hydrocarbon wells |
| 08/16/2012 | CA2826376A1 Improved electro-magnetic antenna for wireless communication and inter-well electro-magnetic characterization in hydrocarbon production wells |
| 08/15/2012 | EP2486429A1 Well drilling method utilizing real time response to ahead of bit measurements |
| 08/15/2012 | CN202383306U 电感式金属检测器 Inductive Metal Detector |
| 08/15/2012 | CN202383305U Data acquisition device for detecting metal container |
| 08/15/2012 | CN202383304U Online pipe cleaner detection device |
| 08/15/2012 | CN202383303U Terrestrial magnetism, ground temperature and pore pressure comprehensive observation instrument |
| 08/15/2012 | CN202383201U Electrical measuring instrument for rock ore |
| 08/15/2012 | CN102636816A Simple geomagnetic vector measurement method |
| 08/15/2012 | CN102636815A Method for detecting condensation water in high-temperature steam pipeline |
| 08/15/2012 | CN102635348A Method for correcting dual-frequency dielectric constants of EWR (electromagnetic wave resistivity) logging-while-drilling instrument |
| 08/15/2012 | CN102635347A Method for quantitatively enabling thin interbed to be equivalent to formation with horizontal and vertical resistivities |
| 08/15/2012 | CN101858988B Magneto-electrotelluric signal collection method and device |
| 08/14/2012 | US8244472 Enabling well-logging instrument development on a common, realistic earth model |
| 08/14/2012 | US8242929 Wireless drill string telemetry |
| 08/14/2012 | US8242781 System and method for determining sub surface geological features at an existing oil well site |
| 08/14/2012 | US8242780 Magnetic resonance method and device to differentiate among pixels representing a silicon-dominated substance, water-dominated tissue and fat-dominated tissue |
| 08/14/2012 | US8242779 Nuclear magnetic resonance method for detecting hydrogen peroxide and apparatus for performing said method |
| 08/14/2012 | US8242778 Fast electron paramagnetic resonance imaging (EPRI) in the CW EPR mode using rapid-scan in the presence of rotating gradients and direct detection with transmit/receive and data processing in a digital signal processing platform |
| 08/14/2012 | US8242777 Calibration of an emission tomography subsystem |
| 08/09/2012 | WO2012106483A2 Electromagnetic source to produce multiple electromagnetic components |
| 08/09/2012 | WO2012106154A1 Glucose analyzing blood examiner |
| 08/09/2012 | WO2012106094A1 Atom beam gyroscope |
| 08/09/2012 | WO2012104835A1 A low-field magnetic resonance system (lf-mrs) for producing an mri image |
| 08/09/2012 | WO2012104086A2 Metal detector for locating metal objects |
| 08/09/2012 | WO2012103945A1 Method of predicting the response of an induction logging tool |
| 08/09/2012 | WO2012068119A3 Open-hole logging instrument and method for making ultr-deep magnetic and resistivity measurements |
| 08/09/2012 | US20120200422 Use of Digital Transport Delay to Improve Measurement Fidelity in Swept-Wavelength Systems |
| 08/09/2012 | US20120200421 Detector for use in well-logging applications |
| 08/09/2012 | US20120199397 System and Method for Determining Pressure Transition Zones |
| 08/08/2012 | EP2483716A2 Directional resistivity antenna shield |
| 08/08/2012 | EP2483715A2 Electromagnetic logging between a cased borehole and surface |
| 08/08/2012 | EP2483714A1 Vehicular anti-pinch system with rain compensation |
| 08/08/2012 | EP2483672A1 Three dimensional imaging of a mass flow |
| 08/08/2012 | EP2483521A2 Apparatus and method for downhole electromagnetic measurement while drilling |
| 08/08/2012 | EP1899749B1 A method of and apparatus for determining if a buried current carrying conductor is buried above a predetermined minimum depth |
| 08/08/2012 | CN202371478U Microwave induction lamp |
| 08/08/2012 | CN202368791U Bushing type icing sensitive vibration component |
| 08/08/2012 | CN202367983U Device capable of automatically filling middle metal ring and automatically correcting and detecting |
| 08/08/2012 | CN102628964A Conductor position and grid structure detection system for transformer station grounding network |
| 08/08/2012 | CN102628360A Determination method for longitudinal resolution index of drilling electromagnetic wave resistivity instrument |
| 08/08/2012 | CN102004266B Metal detecting device for steel wire core conveyer belt |
| 08/08/2012 | CN101573635B Systems and methods for measuring sea-bed resistivity |
| 08/08/2012 | CN101523238B Improvements in marine EM exploration |
| 08/08/2012 | CN101438187B Compact and portable low-field pulsed NMR dispersion analyzer |
| 08/07/2012 | US8239172 Method of deep resistivity transient measurement while drilling |
| 08/07/2012 | US8237584 Changing communication priorities for downhole LWD/MWD applications |
| 08/07/2012 | US8237445 Octupole induction sensors for resistivity imaging in non-conductive muds |
| 08/07/2012 | US8237444 Electromagnetic logging apparatus and method |
| 08/07/2012 | US8237443 Position sensor for a downhole completion device |
| 08/07/2012 | US8237442 Magnetic resonance antenna |
| 08/07/2012 | US8237440 Magnetic field generator suitable for unilateral nuclear magnetic resonance and method for making same |
| 08/07/2012 | US8237439 Composite pulse design method for large-tip-angle excitation in high field magnetic resonance imaging |
| 08/07/2012 | CA2562217C Methods and apparatus for measuring flow velocity in a wellbore using nmr and applications using same |
| 08/07/2012 | CA2502958C Method and device for determining the resistivity in a geological formation crossed by a cased well |
| 08/07/2012 | CA2424034C Nmr sequence for optimizing instrument electrical power usage |
| 08/02/2012 | WO2012102705A1 Apparatus and method for making induction measurements |
| 08/02/2012 | WO2012101607A2 Method for estimating a logging tool response in a layered formation |
| 08/02/2012 | WO2012101414A1 Source for electromagnetic surveying |
| 08/02/2012 | WO2012100806A1 Metal detector |
| 08/02/2012 | WO2012060974A3 An intergrated source-free method and apparatus for porosity determination: nmr calibrated acoustic porosity |
| 08/02/2012 | WO2012051184A3 Predicting downhole formation volumetric sand production using grain-scale rock models |
| 08/02/2012 | WO2012023914A3 Radio frequency assisted geostructure analyzer |
| 08/02/2012 | WO2012023913A3 Radio frequency assisted geostructure analyzer |
| 08/02/2012 | WO2011138151A3 Detection of a metal or magnetic object |
| 08/02/2012 | US20120197528 Method and apparatus for transmitting a dataset from a tool to a receiver |
| 08/02/2012 | US20120197499 Underground measuring devices |
| 08/02/2012 | US20120194351 Downhole Sensor MODBUS Data Emulator |