Patents
Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929)
07/2009
07/02/2009WO2009081653A1 Metal detection method and its apparatus
07/02/2009WO2009079734A1 Contact-less tag with signature, and applications thereof
07/02/2009WO2008027491A3 Nmr echo train compression
07/02/2009US20090171587 Method for Determining Receiver Orientations
07/02/2009US20090167556 Method and System for Transmitting Borehole Image Data
07/02/2009US20090167310 Characterization of formations using electrokinetic measurements
07/02/2009US20090167309 Method of and Apparatus for Measuring Tensor Resistivity
07/02/2009US20090167308 Method and system for monitoring an underground electric cable
07/02/2009US20090167304 Apparatus and method for varying magnetic field strength in magnetic resonance measurements
07/02/2009US20090167302 Time-Lapsed Diffusivity Logging for Monitoring enhanced Oil Recovery
07/02/2009US20090167299 Metal detection device
07/02/2009US20090166030 Method to monitor reservoir fracture development and its geometry
07/02/2009US20090166024 Completion apparatus for measuring streaming potentials and determining earth formation characteristics
07/02/2009DE102008050897A1 Sensor profile for capacitive detection of e.g. article, at e.g. folding door, of motor vehicle, has two conductors spaced from each other, and multiple conductors positioned in detection direction of one of two conductors
07/02/2009CA2707926A1 Method and device for induced polarization mapping of submarine hydrocarbon reservoirs
07/01/2009EP2075599A1 Determination of complex dielectric constants from electromagnetic propagation measurements
07/01/2009EP2075573A1 Systems and method for classifying a substance
07/01/2009EP1373939A4 An inhomogeneous background based focusing method for multi-array induction measurements in a deviated well
07/01/2009EP1373936A4 An efficient and accurate pseudo 2-d inversion scheme for multicomponent induction log data
07/01/2009CN201266243Y Device for generating metal detector sine wave
07/01/2009CN101473245A Method and apparatus for tensorial micro-resistivity imaging in oil-based muds
06/2009
06/30/2009US7555391 Multiple distributed force measurements
06/30/2009US7554458 Downhole communication
06/30/2009US7554329 Method and apparatus for determining formation resistivity ahead of the bit and azimuthal at the bit
06/30/2009US7554328 Method and apparatus for reducing borehole and eccentricity effects in multicomponent induction logging
06/30/2009US7554327 Method for determination and evaluation of a shim parameter set for controlling a shim device in a magnetic resonance apparatus
06/30/2009US7554326 MRI gradient magnetic coil unit assembley using different resins within windings and between components
06/28/2009CA2646770A1 Time-lapsed diffusivity logging for monitoring enhanced oil recovery
06/25/2009WO2009079588A1 Method for enhancing low frequency output of impulsive type seismic energy sources for use while drilling
06/25/2009WO2009079355A1 System and method for improving surface electromagnetic surveys
06/25/2009WO2009077223A1 Locating device
06/25/2009US20090164127 Method and apparatus for optimizing magnetic signals and detecting casing and resistivity
06/25/2009US20090164070 Electrostatic seat occupant detection system
06/25/2009US20090160449 Antennas for Deep Induction Array Tools with Increased Sensitivities
06/25/2009US20090160448 Induction Resistivity Cover
06/25/2009US20090160447 Independently Excitable Resistivity Units
06/25/2009US20090160446 Resistivity Receiver Spacing
06/25/2009US20090160445 Resistivity Reference Receiver
06/25/2009US20090160444 Low temperature squid transient electromagnetic receiver system
06/25/2009US20090160439 Susceptibility-Matched Multi-Well Sample Holders for High-Throughput Screening by Magnetic Analysis
06/25/2009US20090159333 Determining drillstring neutral point based on hydraulic factor
06/25/2009US20090159276 Methods and Apparatus for Communicating Across Casing
06/25/2009DE102007062997A1 Ortungsgerät Locator
06/25/2009CA2713976A1 Method for enhancing low frequency output of impulsive type seismic energy sources for use while drilling
06/24/2009EP1694280A4 Method and apparatus for acquiring multidimensional spectra and improved unidimensional spectra within a single scan
06/24/2009EP1397705A4 System and methods for nmr signal processing without phase alternated pair stacking
06/24/2009CN101467070A Antenna cutout in a downhole tubular
06/24/2009CN101467069A High-pass two-dimensional ladder network resonator
06/24/2009CN100504446C Method for detecting hydrocarbon by comparing NMR response at different depths of investigation
06/24/2009CN100504445C Apparatus and methods for J-edit nuclear magnetic resonance measurement
06/24/2009CN100504444C Underground electromagnetic measurements using cross-magnetic dipoles
06/24/2009CN100504366C Method for determining molecule character of hydrocarbon mixture by nuclear magnetic resonance data
06/23/2009US7550973 Magnetic resonance apparatus, method and auxilliary coil element for manipulation of the B1 field
06/23/2009US7550972 Method and apparatus for vibration-related artifact reduction
06/23/2009US7550971 Methods of in vitro analysis using time-domain NMR spectroscopy
06/23/2009US7550970 Multidimensional NMR spectroscopy of a hyperpolarized sample
06/23/2009US7549960 Implantable and insertable passive tags
06/23/2009CA2435351C Replaceable antennas for wellbore apparatus
06/18/2009WO2009076183A2 Apparatus and system for well placement and reservoir characterization
06/18/2009WO2009076157A1 Obtaining a proton density distribution from nuclear magnetic resonance data
06/18/2009WO2007123824A9 Measurement while drilling tool and method
06/18/2009WO2004049897A3 Portable body for diagnostic equipment
06/18/2009US20090157341 Methods of Correcting Accelerometer and Magnetometer Measurements
06/18/2009US20090157320 Characterizing an earth subterranean structure by iteratively performing inversion based on a function
06/18/2009US20090157316 Method and system for removing effects of conductive casings and wellbore and surface heterogeneity in electromagnetic imaging surveys
06/18/2009US20090157315 Apparatus And Methods For Estimating Downhole Fluid Compositions
06/18/2009US20090156499 Antimicrobial Peptides and Methods of Identifying the Same
06/18/2009US20090153355 Electric field communication for short range data transmission in a borehole
06/18/2009US20090153354 Oilfield Area Network Communication System and Method
06/18/2009US20090153141 Flux Orientation Locating in a Drilling System
06/18/2009DE102007060403A1 Capacitive sensor for material e.g. soap, dispenser, in e.g. hospital, has sensor electronics that operate together with sensor electrode including three dimensional surface element made of electrically conductive material
06/18/2009DE102007060402A1 Capacitive sensor for e.g. soap dispenser, in public area, has control circuit arranged to switchoff power supply and to switch on power supply after lapse of intervals so that recalibration of electronic circuit is performed at points
06/18/2009CA2707040A1 Apparatus and system for well placement and reservoir characterization
06/18/2009CA2706015A1 Obtaining a proton density distribution from nuclear magnetic resonance data
06/17/2009EP2071364A1 Broken piece detecting sensor
06/17/2009EP2069828A2 A telemetry apparatus and method for monitoring a borehole
06/17/2009EP2069826A2 Fast 3d inversion of electromagnetic survey data using a trained neural network in the forward modeling branch
06/17/2009CN101460871A Electrical cased well-logging method
06/17/2009CN101460870A Positioning device
06/17/2009CN101460869A 定位设备 Pointing device
06/17/2009CN101460868A Method and apparatus for determining formation resistivity ahead of the bit and azimuthal at the bit
06/17/2009CN101458339A Method for detecting pipes in floor/wall/ceiling
06/17/2009CN101458338A Soft starting method for physical detecting transmitter
06/16/2009US7548181 Earth-penetrating radar with inherent near-field rejection
06/16/2009US7548065 Skin depth compensation for an in-ground transmitter
06/16/2009US7548064 Folded gradient terminal board end connector
06/16/2009US7548063 Detuning of an RF shielded MRI scan room
06/16/2009US7548062 3D cones gradient waveform generation
06/16/2009US7548061 Method and magnetic resonance apparatus for setting a shim to homogenize a magnetic field in the apparatus
06/16/2009CA2481803C Detection of ferromagnetic objects approaching a magnet
06/16/2009CA2405141C Detecting errors in the determination of magnetic location or orientation
06/11/2009WO2009073688A1 Method and apparatus for electromagnetic logging of a formation
06/11/2009WO2009073277A1 Volume of investigation based image processing
06/11/2009WO2009071375A1 Sensor for the depth-selective detection of dielectric materials, and method for operating such a sensor
06/11/2009WO2009070888A1 Moisture sensor
06/11/2009WO2003040513A3 In situ thermal processing of a hydrocarbon containing formation
06/11/2009US20090146836 Methods and apparatus to configure drill string communications
06/11/2009US20090146835 Wireless communication for downhole tools and method
06/11/2009US20090146066 Device for superposed magnetic resonance and positron emission tomography imaging
06/11/2009CA2743467A1 Apparatus and method for measuring and recording data from violent events