THREE-DIMENSIONAL INVERSION METHOD AND DEVICE FOR ELECTRICAL SOURCE TRANSIENT ELECTROMAGNETIC DATA, AND STORAGE MEDIUM

Magnetometer Array System For Magnetically Noisy Environments

SYSTEM AND METHOD FOR USING A MAGNETOMETER IN A GYRO-WHILE-DRILLING SURVEY TOOL

TRANSIENT ELECTROMAGNETIC DEVICE WITH VARIABLE COIL SHAPES AND TURNS AND USE METHOD OF SAME

METHOD FOR DETECTING THE ROTATION OF A ROD-STRING IN A WELLBORE

Estimating magnetic field using a network of satellites

Antenna alignment apparatus

Adaptive damping magnetic field sensor

System and method for using a magnetometer in a gyro-while-drilling survey tool

System and method for reducing a feasible region of solutions in a relative permeability and capillary pressure curve

Distributed Airborne Electromagnetic Detection System

Method of calculating temperature of a geological structure

Method of controlling aerosol generating device with a plurality of geomagnetic sensors and aerosol generating device controlled thereby

Magnetic compensation method based on aeromagnetic compensation error model

Airborne electromagnetic survey apparatus and airborne electromagnetic survey method

Magnetotelluric measurement system

Apparatus and method for detecting the rotation of a rod-string in a wellbore

Obtaining long-period magnetotelluric marine survey data using a towed streamer system

Position determination device and method

IFR1 survey methodology

System and method for airborne geophysical exploration

Gyro-magnetic wellbore surveying

Gyro-magnetic wellbore surveying

Marine magnetism detection method and device

ELECTROMAGNETIC SURVEY SYSTEM BUCKING SYSTEM ENHANCEMENT

Electronic magnetometer and method for measuring magnetic field

Automated mobile geotechnical mapping

Air-ground integrated earth magnetic field combined observation method and system

EARTH SURVEYING WITH TWO OR MORE MARINE VEHICLES FOR IMPROVED DRILLING APPLICATIONS

Crustal and disturbance field survey correction

METHOD AND SYSTEM FOR MEASURING TOTAL EARTH'S MAGNETIC FIELD FOR OCEAN MAGNETIC SURVEY THROUGH ELIMINATION OF GEOMAGNETIC DISTURBANCE AND RECORDING MEDIUM THEREFOR

Method to predict local geomagnetic disturbance field and its practical application

High precision field measurement method for geomagnetic vectors and a device thereof

Formation evaluation utilizing dual wait time nuclear magnetic resonance

Simultaneous localization and mapping by using Earth's magnetic fields

Compensation of magnetic data for autonomous underwater vehicle mapping surveys

Ocean exploration apparatus and ocean exploration method

Determination of true formation resistivity

Determination device, electrical device, and method of determining moving state

Real-time, limited orientation sensor auto-calibration

Pressure-resistant container and exploration machine provided with the same

Method and device for measuring a magnetic field

Apparatus and method for recognizing zone in portable terminal

METHOD OF ASSIGNING GEOPHYSICAL REFERENCE VALUES TO A WELL TRAJECTORY

Input device

Device location determination

Magnetic field generating device and offset calculating method

Methods and systems for the inversion of magnetic data from remnant and induced sources in geophysical exploration

Magnetic sensing apparatus having a helmholtz coil

Two axes MEMS resonant magnetometer

Geological model analysis incorporating cross-well electromagnetic measurements

Geomagnetic sensor

Magnetic field sensing tool with magnetic flux concentrating blocks

Geomagnetic application device

Automated pre-processing of body-mounted magnetometer data from constellations of low earth orbit satellites for derivation of birkeland current signatures

Method of terrain correction for potential field geophysical survey data

STATE ESTIMATION APPARATUS

Input device

Method for improving wellbore survey accuracy and placement

Geomagnetism sensing device

GEOMAGNETIC SENSING DEVICE

Apparatus and method for recognizing zone in portable terminal using earth magnetic field components and images

Bottom system for geophysical survey (variants)

Tunnel detection using a pipeline pig

Method and apparatus for real-time motion direction detection via acceleration-magnetic fusion

Ground eliminating metal detector