173315 ⎘
Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices; Controlled source electromagnetic [CSEM] surveying Processing
NOISE SUPPRESSION METHOD FOR EXTRACTING TARGET FREQUENCY SIGNAL FROM CSAMT TIME SERIES
#2GEOPHYSICAL SURVEYING APPARATUS, SYSTEM AND METHOD
#3GEOPHYSICAL SURVEYING APPARATUS, SYSTEM AND METHOD
#4Metal detector
#5Electrical prospecting signal transmission device capable of suppressing electromagnetic coupling interference and electrical prospecting signal transmission method using same
#6Method for extracting IP information from grounded-wire transient electromagnetic response
#7Method for removing the effect of near surface galvanic distortion in surface to borehole EM measurements
#8Method for collecting and processing tensor artificial-source electromagnetic signal data and device thereof
#9Heterogeneous subsurface imaging systems and methods
#10Geophysical deep learning
#11Method and apparatus for marine electrical exploration
#12Electromagnetic response data inversion using singular value decomposition
#13Inversion of enhanced-sensitivity controlled source electromagnetic data
#14ELECTROMAGNETIC INVERSION MODEL REDUCTION
#15Efficient solutions of inverse problems
#16Marine vibrator source acceleration and pressure
#17Method and apparatus for separating gamma and neutron signals from a radiation detector and for gain-stabilizing the detector
#18Using near and far field ULF and ELF interferometry synthetic aperture radar for subsurface imaging
#19Bipole source modeling
#20Direct resistivity determination
#21Inversion method
#22Inversion domain merge based on cell statistics
#23Method and apparatus for detecting and mapping subsurface anomalies
#24Method and system for broadband measurements using multiple electromagnetic receivers
#25Subsea cable having floodable optical fiber conduit
#26Processing methods for time division CSEM data
#27Method using near and far field ULF and ELF interferometry synthetic aperture radar for subsurface imaging
#28Inversion of geophysical data on computer system having parallel processors
#29Method and system for mapping a geological structure of a formation on one side of a surface using magnetic moments of different values
#30Method and system of using a data weighted electromagnetic source for time-lapse monitoring of a reservoir production or hydraulic fracturing
#31Systems and methods for removal of swell noise in marine electromagnetic surveys
#32Domain freezing in joint inversion
#33Electromagnetic geophysical survey systems and methods employing electric potential mapping
#34Electromagnetic geophysical survey systems and methods employing electric potential mapping
#35Method and system of determining parameters associated with a hydrocarbon bearing formation beneath a sea bed
#36Methods and apparatus for rapid determination of target depth and transverse resistance
#37Method of and apparatus for processing CSEM data, program, storage medium, computer and use of method
#38Method for quantitative separation of electromagnetic induction and induced polarization effects
#39Method for hydrocarbon reservoir mapping and apparatus for use when performing the method
#40Method for positioning and predicting concealed orebody based on parallel double-tunnel transient electromagnetic exploration
#41Method for optimizing an electromagnetic measurement sensor array