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)
03/2005
03/31/2005US20050068035 Flux orientation locating in a drilling system
03/31/2005US20050068027 Frequency dithering to avoid excitation pulse ringing
03/31/2005US20050067190 Apparatus and methods for imaging wells drilled with oil-based muds
03/31/2005DE10303242B4 Vorrichtung und Verfahren zur Durchführung von Kernresonanzmessungen während des Bohrens eines Bohrlochs Apparatus and method for performing nuclear magnetic resonance measurements while drilling a borehole
03/30/2005EP0813685B9 System and method for contraband detection using nuclear quadrupole resonance
03/29/2005US6873265 Satellite and ground system for detection and forecasting of earthquakes
03/29/2005CA2335499C Apparatus for detecting metals
03/24/2005WO2005026777A1 Environment recognition device
03/24/2005WO2005026748A2 Magnetic resonance imaging with ultra short echo times
03/24/2005WO2004104560A3 Formation-based interpretation of nmr data for carbonate reservoirs
03/24/2005WO2004102222A8 Object detector, method for detecting object, program for detecting object, distance sensor
03/24/2005WO2004102173A3 Time-domain data integration of multiple gradient, multiple te echo trains
03/24/2005WO2004090557A3 Abnormal pressure determination using nuclear magnetic resonance logging
03/24/2005WO2004085990A3 Obtaining multi-dimensional nuclear spin proton density distributions
03/24/2005WO2004075369A3 Electrical power supply arrangement for a downhole measurement assembly
03/24/2005US20050062665 Antenna system
03/24/2005US20050062639 Sub-surface radar imaging
03/24/2005US20050062484 Method and apparatus for metal target proximity detection at long distances
03/24/2005US20050062477 Simultaneous time-domain and frequency-domain metal detector
03/24/2005US20050062476 Metal detector with data transfer
03/24/2005US20050062475 Cable location continuously determining apparatus, cable location continuously determining method, and cable location continuously determining program
03/24/2005US20050062469 System and method for hemisphere disambiguation in electromagnetic tracking systems
03/23/2005EP1516207A1 A method of and a system for surveillance of an environment utilising electromagnetic waves
03/23/2005EP1325481A4 Apparatus and circuit for use with capacitive presence detection systems
03/23/2005CN1599995A Burst QAM downhole telemetry system
03/23/2005CN1598617A Analysing method of rock-fragment fluorescent logging
03/22/2005US6870370 Electromagnetic induction detection system
03/22/2005US6868922 Method for measuring digging positions
03/17/2005WO2005024467A1 Real time processing of multicomponent induction tool data in highly deviated and horizontal wells
03/17/2005WO2005024466A1 Apparatus and methods for magnetic through sensing
03/17/2005WO2005024464A1 Object detection system and method of detecting object
03/17/2005WO2005024460A1 Object detection system and object detection method
03/17/2005WO2005024443A2 Multiple-region gradient arrays for extended field of view in magnetic resonance imaging
03/17/2005WO2005024439A2 Tube array coil for quadrupole resonance (qr) scanning
03/17/2005WO2003050471A8 Apparatus and method for the measurement of electrical properties of materials through non-magnetizable materials
03/17/2005US20050057251 Radiofrequency surface detection coil
03/17/2005CA2536823A1 Tube array coil for quadrupole resonance (qr) scanning
03/16/2005EP1514128A2 Antenna core material for use in mwd resistivity measurements an d nmr measurements
03/16/2005EP1222474A4 Fault location device and method
03/16/2005EP1206713B1 Multi-frequency electromagnetic wave resistivity tool with improved calibration measurement
03/16/2005CN1595195A Super broad band land radar automatic target identification method based on information fusion
03/15/2005US6867589 Method for detecting hydrocarbons from NMR data
03/15/2005US6866098 Method for controlling a producing zone of a well in a geological formation
03/10/2005WO2005022198A1 Earthquake prediction method and system thereof
03/10/2005WO2005020793A2 Microstrip coil design for mri apparatus
03/10/2005WO2004023067A3 Proximity detector comprising capacitive sensor
03/10/2005US20050052898 Apparatus and methods for magnetic through-skin sensing
03/10/2005US20050052182 Apparatus and method for magnetic resonance measurement and mapping of electrical impedance, complex permittivity and complex conductivity as applied to detection and evaluation of sample pathology
03/09/2005EP1512033A1 Method and system for seafloor geological survey using vertical electric field measurement
03/09/2005CN1592847A Approach sensor system of approach sensor with bipolar signal output
03/09/2005CN1591040A Object detecting device
03/09/2005CN1590994A Method for detecting, analyzing and displaying nuclear quadrupole resonance and nuclear magnetic resonance compound at the same time
03/08/2005US6864684 Electromagnetic methods and apparatus for determining the content of subterranean reservoirs
03/08/2005US6863137 Well system
03/08/2005US6863127 System and method for making an opening in a subsurface tubular for reservoir monitoring
03/03/2005WO2004086090B1 A method for monitoring a high-resistivity reservoir rock formation
03/03/2005US20050049820 Gain factor and position determination system
03/03/2005US20050049792 Real time processing of multicomponent induction tool data in highly deviated and horizontal wells
03/03/2005US20050049791 Deep resistivity transient method for MWD applications using asymptotic filtering
03/03/2005US20050046606 Object detecting device
03/03/2005US20050046424 Borehole compensation system and method for a resistivity logging tool
03/03/2005DE10335165A1 Layer depth measuring method for superimposed layers e.g. for detecting depth of buried avalanche casualty, using measurement of impedance of transmission antenna for electromagnetic waves
03/03/2005DE10206521B4 Vorrichtung und Verfahren zur Messung von Potenzialen im Erdreich Apparatus and method for measuring potentials in the ground
03/03/2005DE102004038223A1 Bohrlochmeßvorrichtung und Verfahren zum Bohrlochmessen Logging device and method for well logging
03/03/2005DE10146459B4 Verfahren zur Zutrittssicherung, Vorrichtung zur Zutrittskontrolle und Aufzugskabine A method for access control, apparatus for access control and elevator car
03/02/2005EP1509787A1 System and method for electromagnetic wavefield resolution
03/02/2005CN1588101A Accurately positioning method and device for underground layered power cable defect position
03/01/2005US6862530 System and method for visualizing multi-scale data alongside a 3D trajectory
02/2005
02/27/2005CA2740063A1 Electromagnetic borehole telemetry system incorporating a conductive borehole tubular
02/24/2005WO2005017856A1 System and method for the magnetic detection of the presence of objects in a blind angle of a motor vehicle
02/24/2005WO2005017558A2 Electromagnetic wave resistivity tool
02/24/2005WO2005017315A1 Measurement-while-drilling assembly using real-time toolface oriented measurements
02/24/2005US20050043891 System and method for enhanced hydrocarbon recovery
02/24/2005US20050040828 Induction logging system and method featuring multi-frequency skin effect correction
02/24/2005US20050040822 Multi-measurement NMR analysis based on maximum entropy
02/24/2005US20050040819 System and methods for analyzing carbonate formations while drilling
02/24/2005US20050040817 Method and measuring appliance for locating enclosed objects
02/24/2005DE20023620U1 Detector coil for probe, has spirally arranged coil windings with electric shield
02/24/2005DE10332395A1 Erntemaschine Harvester
02/23/2005EP1430330A4 In situ method for determining soil liquefaction tendency and its prevention by electro-osmosis
02/23/2005CN1585904A Method and measuring device for locating enclosed objects
02/23/2005CN1585687A Hand-held tool with a removable object sensor
02/22/2005US6859733 Method for determining parameters of earth formations surrounding a well bore
02/22/2005US6859162 Underground object locating system without direction ambiguity
02/22/2005US6859038 Method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves
02/22/2005US6859037 Underwater cable locating device with controlled buoyancy
02/22/2005US6859034 Time-domain data integration of multiple gradient, multiple TE echo trains
02/22/2005US6859033 Method for magnetic resonance fluid characterization
02/22/2005US6859032 Method for determining molecular properties of hydrocarbon mixtures from NMR data
02/22/2005US6857321 Proximity sensor system having a proximity sensor with a bipolar signal output
02/17/2005WO2005015263A1 Method and apparatus for digital detection of electromagnetic signal strength and signal direction in metallic pipes and cables
02/17/2005WO2005015262A1 Ground survey device, system, and method
02/17/2005WO2003035801A3 Producing hydrocarbons and non-hydrocarbon containing materials from a hydrocarbon containing formation
02/17/2005US20050038602 Terrestrial environment observation satellites
02/16/2005CN1580821A Electromagnetic method for determining dip angles independent of mud type and borehole environment
02/16/2005CN1580820A Apparatus and methods for reducing borehole current effects
02/16/2005CN1580819A Synthetic focusing method for excited polarized logging
02/16/2005CN1580818A Artificial source time frequency electro magnetic bathymetry
02/16/2005CN1580488A Retrievable subsurface nuclear logging system
02/15/2005US6856909 Detecting a boundary in a formation