Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 16,575

Document Document Title
WO/2019/036026A1
A method of measuring a Q-factor in a wireless power transmitter includes charging a capacitor in a LC tank circuit that includes a transmission coil to a voltage; starting a Q-factor determining by coupling the LC tank circuit to ground...  
WO/2019/034867A1
An apparatus for detecting a moving ferromagnetic target object in a protected area comprises a first magnetic sensor adapted to measure a magnetic field within a first localised volume of space defined by a first zone of sensitivity of ...  
WO/2019/035814A1
A method and system for transmitting an electromagnetic (EM) signal in a wellbore to improve an open loop system. The method comprises measuring a parameter indicative of a property of a transmitter using a sensor in the wellbore and gen...  
WO/2019/020945A1
The invention concerns a method for calibrating a magnetometer, comprising the following steps: - the magnetometer travels through (S1) a set of positions on a path, - acquisition (S2) by the magnetometer of a plurality of measurements o...  
WO/2019/017957A1
A method for dipole modeling may comprise providing an electromagnetic induction tool comprising an electromagnetic antenna, disposing the electromagnetic induction tool in a wellbore, and activating the electromagnetic antenna. The meth...  
WO/2019/016477A1
The invention concerns a magnetic field measurement by a set of magnetometers (20) which are linked to a same movable support and which exhibit different orientations of eigendirections with respect to this support. The processing means ...  
WO/2019/016465A1
The present invention concerns a method for locating an object (1) rigidly attached to a triaxial magnetic sensor (2), moving in the magnetic field generated by an assembly of at least three triaxial magnetic generators (3) stationary in...  
WO/2019/011526A1
The invention relates to a method for locating a locating object (36) hidden beneath a surface to be searched (34) using a locating device (10). At least one coupling signal dependent on the locating object (36) is received by a receivin...  
WO/2019/008284A1
The invention relates to a method for calibrating a magnetic locator, said magnetic locator comprising at least a transmitter and a receiver, and said calibration method involving a third sensor consisting of a transceiver. The method co...  
WO/2019/005010A1
A modular downhole logging system includes a transmitter module having a local frequency, wherein the transmitter module transmits interrogation signals into a formation based on the local frequency. The downhole system also includes a r...  
WO/2019/005032A1
In some aspects, a material for constructing a drill collar is selected based on a cost and a minimum thickness for a cross-sectional area of material that satisfies a structural constraint. An interior volume of the drill collar houses ...  
WO/2019/005016A1
Eddy current logging enables corrosion monitoring in nested-pipe arrangements. An illustrative method of logging total thickness of the pipe walls includes acquiring measurements from an electromagnetic logging tool conveyed through the ...  
WO/2019/005018A1
A method for synchronizing signals among transmitters and receivers of a logging tool positioned in a borehole is provided. Measurement signals generated from operating a transmitter in the borehole are acquired by a receiver. An operati...  
WO/2019/005053A1
A tool, method, and system for evaluating integrity of one or more tubing strings in a wellbore with multiple tubing strings. The tool, method, and system may include a magnetic source that can radiate the tubing strings with at least on...  
WO/2018/237152A1
A method of transmitting a magnetic field in a metal detector is provided. The method comprising receiving, by a plurality of switching elements connecting a supply voltage across one or more transmit inductance coils, one or more transm...  
WO/2018/233837A1
Wireless power transmission system with an object detection and an object protection system is provided. The transmission system comprises a detection system having one or more sensors, allowing monitoring of at least two parameters and ...  
WO/2018/235540A1
A metallic foreign material detection device 14 is to be used in a wireless power transmission system that transmits power in a wireless manner from a power supply coil to a power receiving coil. The metallic foreign material detection d...  
WO/2018/232533A1
In order to characterize electrically conducting and/or ferromagnetic objects, such as rebars, in concrete, a device is rolled along a surface of the sample. The device comprises e.g. two rows (10.1, 10.2) of partially overlapping sendin...  
WO/2018/236352A1
A downhole system includes a first module having a transmitter that transmits at least one sync control signal. The system also includes a second module having a sync module with a direct digital synthesizer (DDS). The sync module analyz...  
WO/2018/234164A1
The invention relates to a method and device for measuring the burial depth of lines that are being laid increasingly under a soil surface on land and in water. In order to increase a measurement precision, more than one excitation or tr...  
WO/2018/236409A1
Provided are systems and methods for mapping hydrocarbon reservoirs. Operations include disposing an electromagnetic (EM) transmitter (144a) and an EM receiver (144b) into first and second wellbores (120a, b) of first and second wells, r...  
WO/2018/230423A1
A marker detection method that uses a vehicle-side magnetic detection unit (11) in which a plurality of magnetic sensors are arranged in the vehicle width direction to detect magnetic markers (10) that have been laid in a road. The metho...  
WO/2018/230422A1
A marker detection method in which a sensor unit (11) that includes a plurality of magnetic sensors that are arranged in a vehicle width direction is used to detect magnetic markers (10) that have been laid in a road. The detection metho...  
WO/2018/231969A1
Various implementations described herein are directed to a method for surveying a wellbore. A statistical estimation process that combines magnetic survey measurement data and gyroscopic survey measurement data to form error estimates in...  
WO/2018/227131A1
There is provided a plastic cylindrical pipe including a nonconductive wall, wherein the wall includes a filler that is either electrically conductive or magnetic.  
WO/2018/225776A1
The objective of the present invention is to provide a monitoring system for monitoring whether a substance being monitored is present in air, and a detecting device for use in the monitoring system. This monitoring system is provided wi...  
WO/2018/226233A1
A ranging system using spatially continuous filtering techniques to constrain ranging measurements, thereby improving ranging calculations between a bottom-hole-assembly and at least one target well. By taking advantage of the spatial co...  
WO/2018/225028A2
The invention concerns a shoe scanning system for a full-body scanners canning an individual before access to a restricted access area. The system comprises a detection unit (10) comprising : a detector for sensing a metal and/or unautho...  
WO/2018/224703A1
The invention relates to a multiparametric probe (1), suitable for monitoring geomicrobiological activity in very deep perforations in aqueous subterranean environments, comprising: a plurality of sensors (2); a main body (3) of sensors;...  
WO/2018/226226A1
Methods and devices used to calibrate EM corrosion detection tools may estimate the effects of the presence of a core on measurements to enable more accurate corrosion detection in the well line. The methods may involve sending voltages ...  
WO/2018/222208A1
A method comprising determining a resistivity of a formation, based on a detection of angular electromagnetic signals by a receiver antenna on a first sub of a multi-sub resistivity tool during rotational operation in a wellbore within t...  
WO/2018/217509A1
A measurement tool configured to be ran through a bore of a hydrocarbon well. The measurement tool includes a dielectric core, a controller disposed at a first end of the dielectric core, a -first wire helically disposed about the dielec...  
WO/2018/217847A1
Downhole properties of a geological formation may be determined using nuclear magnetic resonance (NMR) measurements obtained by a moving tool. To do so, an interpretation of the NMR data obtained by the moving data may take into account ...  
WO/2018/216040A1
The method for the investigation of reinforced concrete structures envisages to provide a device for the investigation of reinforced concrete structures at one end of a structural element to be investigated, said device comprising a body...  
WO/2018/217875A1
A method can include acquiring imagery of an exposed surface of the Earth; generating a multi-dimensional model based at least in part on the imagery; generating synthetic seismic data utilizing the multi-dimensional model; acquiring sei...  
WO/2018/217569A1
A system for detecting a living being using electric fields may include sensors configured to generate and receive an electric field. The system may include at least one amplifier connected to at least one electrode of a sensor, a contro...  
WO/2018/215060A1
A foreign object detector immune to external magnetic fields and able to determine the presence of metallic or dielectric matter is provided. The detector comprises a conducting wire with a first section and a second section. The first s...  
WO/2018/217832A2
A permeability log is generated by running borehole tools in a borehole traversing a formation, including at least electromagnetic (EM) tool providing at least a low-frequency complex conductivity measurement at at least one frequency. D...  
WO/2018/217832A3
A permeability log is generated by running borehole tools in a borehole traversing a formation, including at least electromagnetic (EM) tool providing at least a low-frequency complex conductivity measurement at at least one frequency. D...  
WO/2018/216702A1
This metal detecting device is provided with: a detecting circuit unit (30) which executes a detection process of a first fluctuating component of a magnetic field fluctuating signal from a magnetic field receiving unit (23), the first f...  
WO/2018/215384A1
A magnetic inductance tomography (MIT) device for imaging a tissue of a patient can include multiple coils, electronic circuitry, and one or more processors. The electronic circuitry can separately energize individual coils of the multip...  
WO/2018/216088A1
Each receiver (20a-20d) receives radio waves emitted from a transmitter (10) and propagated through multipath propagation, measures a reception signal intensity, and transmits reception signal intensity information to an air conditioning...  
WO/2018/210497A1
The invention relates to a method for locating a live locating object (36) hidden beneath an examination surface (34), by means of a locating apparatus (10), wherein the locating apparatus (10) and the examination surface (34) are moved ...  
WO/2018/209059A1
Naturally-occurring, electromagnetic signals generated by interaction of solar wind with earth's magnetosphere adjacent a borehole are measured by an electromagnetic sensor positioned adjacent the borehole in the hydrocarbon-bearing form...  
WO/2018/208282A1
A system and method for evaluating a subterranean earth formation as well as a method of steering a drill bit in a subterranean earth formation. The system comprises a logging tool that is operable to measure formation data and locatable...  
WO/2018/206541A1
The invention relates to an inductive proximity switch having a primary coil for generating an alternating magnetic field, having an oscillator for driving the primary coil, having a control/evaluation unit which is functionally connecte...  
WO/2018/208296A1
A method for estimating a property of an earth formation is provided. At least one porosity dataset is received. The porosity dataset is analysed to determine pore-throat size distribution. A NMR measurements dataset is received from a N...  
WO/2018/208281A1
A system and method of evaluating a subterranean earth formation using a statistical distribution of formation data. The system comprises a logging tool and a processor in communication with the logging tool. The logging tool comprises a...  
WO/2018/203043A1
The present invention relates to a method of determining a mineralogical property or a petrophysical or geohydrological parameter of a sample of drill cuttings from drilling during an oil, gas or water operation. The method comprises mak...  
WO/2018/204110A1
A method for determining properties of a laminated formation traversed by a well or wellbore employs measured sonic data, resistivity data, and density data for an interval-of-interest within the well or wellbore. A formation model that ...  

Matches 1 - 50 out of 16,575