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)
11/2004
11/02/2004US6810984 Occupant judging apparatus
11/02/2004CA2321242C Shield apparatus for use in conjunction with a well tool and method for shielding a coil
11/02/2004CA2283996C Estimating permeability
10/2004
10/28/2004WO2004092633A2 Spoolable composite coiled tubing connector
10/28/2004WO2003098548A3 Method to correct magnetic field/phase variations in proton resonance frequency shift thermometry in magnetic resonance imaging
10/28/2004US20040212378 Enhanced subsurface membrane interface probe (MIP)
10/28/2004US20040211569 Installation and use of removable heaters in a hydrocarbon containing formation
10/28/2004US20040211443 Magnetic plug detector
10/28/2004DE10301951A9 Verfahren zur Bodenkompensation A method for ground compensation
10/28/2004CA2756830A1 Method for detection and compensation of eddy currents
10/27/2004EP1470406A1 Reservoir monitoring in a laminated reservoir using 4-d time lapse data and multicomponent induction data
10/27/2004CN2651763Y Bipolar pulse current excited resistor chromatographic image data collecting system
10/26/2004US6810331 Fixed-depth of investigation log for multi-spacing multi-frequency LWD resistivity tools
10/26/2004US6809521 Apparatus and method for wellbore resistivity measurements in oil-based muds using capacitive coupling
10/26/2004US6809520 Compact, autonomous robotic detection and identification sensor system of unexploded ordnance site remediation
10/26/2004US6808028 Method and apparatus utilizing NMR measurements to gather information on a property of the earth formation surrounding a wellbore
10/26/2004CA2244921C Golf ball with a tag, and detecting system
10/21/2004WO2004090557A2 Abnormal pressure determination using nuclear magnetic resonance logging
10/21/2004WO2004070422A3 Methods of processing magnetotelluric signals
10/21/2004US20040210392 [system and method for visualizing multi-scale data alongside a 3d trajectory]
10/21/2004US20040207539 Self-contained downhole sensor and method of placing and interrogating same
10/21/2004US20040207538 Burst QAM downhole telemetry system
10/21/2004US20040207403 Method and apparatus for accurately measuring properties of a formation
10/21/2004US20040207402 Method and apparatus to improve an mri image
10/20/2004CN2650152Y Network dynamic charging potential monitoring device
10/20/2004CN1172197C Microearth current deteciting instrument
10/19/2004US6806714 Detector of near-infrared light
10/19/2004CA2415970C Electromagnetic resistivity instrument having look ahead capability
10/19/2004CA2305793C Search device for locating buried persons
10/19/2004CA2179993C Metal detection system
10/14/2004US20040204857 Generating and displaying a virtual core and a virtual plug associated with a selected piece of the virtual core
10/14/2004US20040204855 System and method for visualizing data in a three-dimensional scene
10/14/2004US20040201384 Active tag for object sensing
10/14/2004US20040201380 Method and apparatus for rapid tomographic measurements of the electrical conductivity distribution of a sample
10/14/2004US20040201370 Method and measuring device for locating enclosed objects
10/13/2004EP1467218A2 Ultra sensitive magnetic field sensors
10/13/2004CN2648459Y Well tester by radar for moisture rate of petroleum
10/13/2004CN1536373A Network charging potential monitoring method
10/12/2004US6804625 Subsurface modeling method
10/12/2004US6803761 Temperature compensated magnetic circuit
10/12/2004CA2248253C System and method for performing inversion on lwd resistivity logs with enhanced resolution
10/11/2004CA2463267A1 System and method for visualizing data in a three-dimensional scene
10/07/2004WO2004086095A1 Metal detector
10/07/2004WO2004086090A2 A method for monitoring a high-resistivity reservoir rock formation
10/07/2004WO2004085990A2 Obtaining multi-dimensional nuclear spin proton density distributions
10/07/2004US20040199318 Multiple sensor vehicle occupant detection for air bag deployment control
10/07/2004US20040196150 Multiple sensor vehicle occupant detection for air bag deployment control
10/07/2004US20040196047 Method and apparatus for a multi-component induction instrument measuring system for geosteering and formation resistivity data interpretation in horizontal, vertical and deviated wells
10/07/2004US20040196046 Downhole measurement of rock properties
10/07/2004US20040196045 Systems and methods useful for detecting presence and / or location of various materials
10/07/2004US20040196044 Flux plane locating in an underground drilling system
10/07/2004US20040196038 Downhole NMR processing
10/07/2004DE202004011921U1 Metal detector with a narrow housing, has send and receive coils coupled together in the housing
10/07/2004CA2520844A1 A method for monitoring a high-resistivity reservoir rock formation
10/07/2004CA2520695A1 Obtaining multi-dimensional nuclear spin proton density distributions
10/06/2004EP1463962A2 Detectable components and detection apparatus for detecting such components
10/06/2004EP1301800A4 Occupant sensor
10/06/2004EP1266244B1 Electromagnetic target discriminator sensor system and method for detecting and identifying metal targets
10/06/2004EP1149369A4 Passenger detection system and method
10/06/2004EP1112502A4 Occupant sensor
10/06/2004EP1040371B8 Airborne electromagnetic system
10/06/2004CN1534311A Coin sensor
10/06/2004CN1170171C Explosion-proof geologic radar collection system
10/05/2004US6801039 Apparatus and method for measuring mud resistivity using a defocused electrode system
10/05/2004CA2359371C Electromagnetic wave resistivity tool having tilted antenna
09/2004
09/30/2004WO2004083790A1 A device for monitoring of oil-water interface
09/30/2004WO2004070423A9 Method and apparatus for detecting diffusion sensitive phases with estimation of residual error in nmr logs
09/30/2004US20040189322 Cable detection apparatus and method
09/30/2004US20040189305 Multi-frequency boring tool locating system and method
09/30/2004US20040189296 Method for obtaining multi-dimensional proton density distributions from a system of nuclear spins
09/30/2004US20040189293 Screening method and apparatus
09/30/2004US20040188185 Security method for gaining access, access verification device, and elevator
09/30/2004US20040188140 In-situ heavy-oil reservoir evaluation with artificial temperature elevation
09/30/2004DE202004011073U1 Conveyor belt metal detector for dielectric material recycling has electromagnetic field transmit and receive coils inside metal screening housing
09/30/2004DE19817008B4 Verfahren und Anordnung zur Analyse von Verkehr sowie ein Sensor hierfür Method and apparatus for analysis of traffic and a sensor therefor
09/30/2004DE10313766A1 Handgeführtes Arbeitsgerät A hand-operated device
09/30/2004DE10104924B4 Mobile Messvorrichtung und Verfahren zur ortsaufgelösten Bestimmung magnetischer und/oder elektrischer Parameter von in Flüssigkeiten oder festen Stoffen eingebetteten Körpern Mobile measuring device and method for locally resolved determination of magnetic and / or electrical parameters of liquids or solid substances embedded in bodies
09/29/2004EP1461643A1 Nmr apparatus for oil well logging of large and small diameter wells
09/29/2004CN1532561A Three-dimensional differential electric detection technology
09/29/2004CN1532560A Natural potential multiple polar loop gradient observation method
09/29/2004CN1168999C A method and apparatusfor determining the resistivity of a formation through which a cased well passes
09/29/2004CN1168998C Method and apparatus for determing the resistivity of a formation through which a cased well passes
09/29/2004CN1168997C Remote reservoir resistivity mapping
09/28/2004US6798208 System and method for locating a fracture in an earth formation
09/28/2004CA2362542C Directional resistivity measurements for azimuthal proximity detection of bed boundaries
09/23/2004WO2004081609A1 Object detection device
09/23/2004WO2004081608A2 Apparatus for detecting the presence of electrically-conductive debris
09/23/2004WO2004081335A2 A motor pulse controller
09/23/2004US20040186665 Measurement device and support for use in a well
09/23/2004US20040183669 Detachable entrance and exit gate with a combined commodity burglarproofing and small arms detecting system
09/23/2004US20040183651 Detector and lock controller using same
09/23/2004US20040183538 Structure for electromagnetic induction well logging apparatus
09/23/2004US20040183537 Metal detector having a plurality of phase delay discrimination regions with corresponding selectable exception spaces therein
09/23/2004US20040183533 High-resolution high-speed NMR well logging device
09/23/2004DE20307931U1 Sensor head for a capacitive approach sensor, especially for edge-accurate detection of objects, has a layer type construction with electrically isolated sensor, earth and compensation electrodes
09/22/2004EP1460455A1 Method and apparatus for determining the nature of subterranean reservoirs
09/22/2004EP1397707A4 Rapid nmr multi-frequency t1 and t2 acquisition for earth formations evaluation with mwd or wireline tools
09/22/2004EP1393096A4 Magnetic resonance fluid analysis apparatus and method
09/21/2004US6795774 Method for asymptotic dipping correction
09/21/2004US6794875 Induction well logging apparatus and method