| 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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| 10/15/2008 | EP1771750B1 Electromagnetic surveying |
| 10/15/2008 | EP1354222B1 Induction logging antenna |
| 10/15/2008 | EP1053487B1 Device for downhole nuclear magnetic resonance |
| 10/15/2008 | CN201134658Y Underground cable theft preventing installation making underground cable unable be pulled |
| 10/15/2008 | CN201133939Y Electric transducer |
| 10/15/2008 | CN101285895A Linear current source excitated multi- path receiving ground magnetic nuclear resonance method and system |
| 10/14/2008 | US7437251 Correction of sensor non-equipotentiality in a resistivity imaging device |
| 10/14/2008 | US7436320 Sensor system and method of communicating data between a downhole device on a remote location |
| 10/14/2008 | US7436185 Highly integrated logging tool |
| 10/14/2008 | US7436184 Well logging apparatus for obtaining azimuthally sensitive formation resistivity measurements |
| 10/14/2008 | US7436183 Replaceable antennas for wellbore apparatus |
| 10/14/2008 | US7436182 Cryogenic NMR probe capacitors with dielectric heat sinks |
| 10/14/2008 | US7436181 Probe head for nuclear magnetic resonance measurements |
| 10/14/2008 | US7436180 Gradient coil apparatus and method of fabricating a gradient coil to reduce artifacts in MRI images |
| 10/14/2008 | US7436179 Magnet device |
| 10/14/2008 | US7436178 Fast continuous moving bed magnetic resonance imaging with multiple stationary receive coils for sense reconstruction |
| 10/14/2008 | US7436176 Magnetic resonance imaging using adaptive phase encoding gradient |
| 10/14/2008 | US7436175 Practical pulse synthesis via the discrete inverse scattering transform |
| 10/14/2008 | CA2628999A1 System and method for evaluating petroleum reservoir using forward modeling |
| 10/14/2008 | CA2529832C Combined surface and wellbore electromagnetic measurement system and method for determining formation fluid properties |
| 10/14/2008 | CA2367702C A method and apparatus for determining the resistivity of a formation through which a cased well passes |
| 10/14/2008 | CA2298488C Eas magnetic elements with different frequency ranges |
| 10/14/2008 | CA2249982C Mutual induction correction |
| 10/09/2008 | WO2008121796A2 Receivers and methods for electromagnetic measurements |
| 10/09/2008 | WO2008121772A2 Methods of electromagnetic logging using a current focusing receiver |
| 10/09/2008 | WO2008121770A2 Csem surveying method using an arrangement of plural signal sources |
| 10/09/2008 | WO2008121484A2 Lightweight, low cost structure for formation conductivity measuring instrument |
| 10/09/2008 | WO2008121300A2 A system and method for extending a serial protocol to create a network in a well monitoring environment |
| 10/09/2008 | WO2008119226A1 Optical sensing methods and apparatus |
| 10/09/2008 | WO2008086525A3 High-throughput systems for magic-angle spinning nuclear magnetic resonance |
| 10/09/2008 | WO2008036153A3 Fluid injection management method for hydrocarbon recovery |
| 10/09/2008 | WO2008036152A3 Earth stress management and control process for hydrocarbon recovery |
| 10/09/2008 | WO2008024581A3 Fast 3d inversion of electromagnetic survey data using a trained neural network in the forward modeling branch |
| 10/09/2008 | WO2007136451A3 Determining orientation for seafloor electromagnetic receivers |
| 10/09/2008 | US20080246486 Mutual Shielding of Collocated Induction Coils in Multi-Component Induction Logging Instruments |
| 10/09/2008 | US20080246485 Compact underwater electromagnetic measurement system |
| 10/09/2008 | US20080246484 Airborne Electromagnetic (EM) Survey System |
| 10/09/2008 | US20080246483 Tracking the positional relationship between a boring tool and one or more buried lines using a composite magnetic signal |
| 10/09/2008 | US20080246482 Distinguishing False Signals in Cable Locating |
| 10/09/2008 | US20080246481 Locating Arrangement and Method Using Boring Tool and Cable Locating Signals |
| 10/09/2008 | US20080246476 Self-fastening cage surrouding a magnetic resonance device and methods thereof |
| 10/09/2008 | DE102007014866A1 Positioning system for positioning manually movable metal detector for land mine detection, has plate having projection/recessed positioning elements that are complementary to projection/recessed positioning elements of positioning arm |
| 10/09/2008 | CA2682496A1 Lightweight, low cost structure for formation conductivity measuring instrument |
| 10/09/2008 | CA2628940A1 Devices, systems and methods for ad hoc wireless communication |
| 10/08/2008 | EP1977272A1 Antenna cutout in a downhole tubular |
| 10/08/2008 | CN101283292A Multi-transient DC resistivity measurements |
| 10/08/2008 | CN101283291A Method and apparatus for reservoir fluid characterization in nuclear magnetic resonance logging |
| 10/08/2008 | CN101281255A Method for detecting down-hole instant changeable electromagnetic ultralong distance |
| 10/08/2008 | CN100424523C Method for using a Kalman filter approach to process electromagnetic data |
| 10/07/2008 | US7433728 Dynamic metal immunity by hysteresis |
| 10/07/2008 | US7432716 Method for compensating dielectric attenuation in downhole galvanic measurements |
| 10/07/2008 | US7432715 Method and apparatus for metal detection employing digital signal processing |
| 10/07/2008 | US7432714 Method and device for on-chip magnetic resonance spectroscopy |
| 10/07/2008 | US7432713 Dielectric element, and magnetic resonance imaging method using same |
| 10/07/2008 | US7432712 Magnetic resonance imaging apparatus |
| 10/07/2008 | US7432711 Radial coil arrangement for a magnetic resonance apparatus |
| 10/07/2008 | US7432710 Apparatus and method for reducing image artifact |
| 10/07/2008 | US7432709 Planar RF resonator for open MRI systems |
| 10/07/2008 | US7432708 Temperature control method for a permanent magnet arrangement of a magnetic resonance system |
| 10/07/2008 | US7432707 Magnetic resonance imaging with corrected intensity inhomogeneity |
| 10/07/2008 | US7432706 Magnetic resonance imaging using blood flow navigation |
| 10/07/2008 | CA2502154C A combined propagation and lateral resistivity downhole tool |
| 10/07/2008 | CA2482096C Magnetically activated well tool |
| 10/07/2008 | CA2397385C Nmr apparatus and methods for measuring volumes of hydrocarbon gas and oil |
| 10/07/2008 | CA2370034C A method and apparatus for determining the resistivity of a formation through which a cased well passes |
| 10/05/2008 | CA2628914A1 Airborne electromagnetic (em) survey system |
| 10/02/2008 | WO2008119026A1 Sub-surface communications system and method |
| 10/02/2008 | WO2008118484A1 A system and method for monitoring a well |
| 10/02/2008 | WO2008081469A3 A process and device for measurement of spectral induced polarization response using pseudo random binary sequence (prbs) current source |
| 10/02/2008 | WO2008054888A3 Removing sea surface-related electromagnetic fields in performing an electromagnetic survey |
| 10/02/2008 | WO2008023174A3 Reduction of noise in electrical field measurements |
| 10/02/2008 | US20080240530 Methods For Obtaining Mri Frequency Maps |
| 10/02/2008 | US20080238429 Receivers and Methods for Electromagnetic Measurements |
| 10/02/2008 | US20080238428 Methods of Electromagnetic Logging Using a Current Focusing Receiver |
| 10/02/2008 | US20080238427 Lightweight, Low Cost Structure for Formation Conductivity Measuring Instrument |
| 10/02/2008 | US20080236270 Determining wellbore position within subsurface earth structures and updating models of such structures using azimuthal formation measurements |
| 10/02/2008 | DE102007014604A1 Integrated transmitting and receiving antenna system for positioning and qualifying of electromagnetically relevant sensing volume, has two loop antennas turned by preset angle and grouped to form spatial antenna-doublet |
| 10/01/2008 | EP1975647A2 Stud sensing device |
| 10/01/2008 | EP1975606A2 Stud sensor |
| 10/01/2008 | EP1974231A2 Programmable data acquisition for tubular objects |
| 10/01/2008 | EP1974178A2 Electromagnetic sensor systems and methods of use thereof |
| 10/01/2008 | EP1269222A4 Method of interpreting induction logs in horizontal wells |
| 10/01/2008 | CN201126480Y Hand-hold medium detector |
| 10/01/2008 | CN101276003A Resistance-capacity matching transmission network of array phase induction logging instrument receiver coil |
| 10/01/2008 | CN101276002A High temperature monolithic phase programmable direct numerical frequency synthetic source |
| 10/01/2008 | CN101275466A Lightweight low cost structure for formation conductivity measuring instrument |
| 10/01/2008 | CN100422768C Phase discrimination for micro electrical measurement in non-conductive fluid |
| 10/01/2008 | CN100422767C Capacitance-based sensor and occupant sensing system |
| 10/01/2008 | CN100422766C Active transmitter ringdown for switching power amplifier |
| 09/30/2008 | US7430474 Removing sea surface-related electromagnetic fields in performing an electromagnetic survey |
| 09/30/2008 | US7429862 PPA MRT method and apparatus with scaled contribution of k-space data to the reconstructed image |
| 09/30/2008 | US7429861 MR system and operating method therefor allowing selection of points in time of signal readout |
| 09/30/2008 | US7429860 Noise reduction for spectroscopic signal processing |
| 09/30/2008 | CA2476787C Integrated magnetic ranging tool |
| 09/25/2008 | WO2008115969A1 Determination of gas saturation radial profile from multi-frequency nmr data |
| 09/25/2008 | WO2008036564A3 Resistivity tools with load-bearing azimuthally sensitive antennas and methods of using same |
| 09/25/2008 | WO2008028083A3 Method and system for detecting and mapping hydrocarbon reservoirs using electromagnetic fields |
| 09/25/2008 | US20080234938 Method and apparatus for formation testing |
| 09/25/2008 | US20080234937 Determination of gas saturation radial profile from multi-frequency nmr data |
| 09/25/2008 | US20080231467 Compliance telemetry |