... association challenging preconception conversion csem complex carbonate imaging das imaging economic geology carbonate imaging vsp data electromagnetic data Challenging preconceptions in complex carbonate imaging: using shear waves and electromagnetic data for improved subsurface understanding...

... geophysics thin conductor electromagnetic data Surface geometry inversion of Preston Lake transient electromagnetic data Xushan Lu , Colin G. Farquharson, Department of Earth Sciences, Memorial University of Newfoundland; Peter Lelièvre, Department of Mathematics and Computer Science, Mount Allison...

... learning colombo full-waveform inversion reservoir characterization upstream oil & gas joint inversion geophysics applied geoscience & energy exploration geophysicist 10 seg technical program inversion electromagnetic data reconstruction © 2021 Society of Exploration Geophysicists...

... data Multi-scale parallel simulation of arbitrary waveforms for time-domain electromagnetic data Ming Cheng* and Dikun Yang, Department of Earth and Space Sciences, Southern University of Science and Technology Summary The simulation of time-domain electromagnetic fields often uses the technique...

... reservoir characterization infrastructure colorado school amplitude exploration geophysicist 10 algorithm casing and cementing line image geophysics inversion streich control line artifact electromagnetic data geology csem data 3D inversion of field electromagnetic data contaminated...

... present an approach for using convolutional neural networks to classify unexploded ordnance directly from time-domain electromagnetic data. The outputs of the network are probabilities that the signal in a given spatial window is associated with an ordnance object, as well as a classification, which...

... identify and eliminate the coherent noise in electromagnetic data. Presentation Date: Tuesday, October 13, 2020 Session Start Time: 8:30 AM Presentation Time: 10:35 AM Location: 360A Presentation Type: Oral separate inversion information exploration geophysicist 10 time channel upstream oil...

..., we derive moment formulae for a smooth Gaussian conductivity distribution and use these to invert airborne electromagnetic data from an area in the Athabasca Basin of Canada. If we constrain the Gaussian model to be similar to a thin sheet or a thick sheet at the surface, we get estimates...

... learning (DL) approach which predicts salt geometry by using seismic and electromagnetic data simultaneously. Different network architectures were designed to incorporate these distinct data types and tested to assess which best improved the prediction accuracy compared to either seismic or electromagnetic...

... characterization upstream oil & gas subsurface orebody em response machine learning inversion electromagnetic data inversion scheme conductive anomaly deep learning altitude imaging resistivity model seg international exposition em data Imaging of subsurface orebody with airborne...

... ABSTRACT We generalize an existing distorted Born iterative method for inversion of electromagnetic data in anisotropic conductive media during geosteering so that it can deal with magnetic dipole sources. The magnetic and electric fields are determined by two coupled integral equations...

... method using the fixed-loop configuration. Through numerical simulation, we demonstrate the feasibility of using time-domain electromagnetic data to identify magnetic sources. Extracting the MoTEM signal from an UTEM survey over the Main Sill of the Raglan nickel Mine further verifies the presence...

... ABSTRACT We developed a multi-objective optimization strategy for inverting marine controlled source electromagnetic data using a fast-non-dominated sorting genetic algorithm. Here, we propose a robust stochastic global search method which considers the objective as a two-component vector...

... Start Time: 9:20 AM Presentation Start Time: 9:45 AM Location: Poster Station 7 Presentation Type: Poster inversion result nonlinear conjugate gradient inversion efficiency finite element method aem inversion electromagnetic data geophysics inversion initial model vector finite...

... upstream oil & gas electromagnetic data mesh geophysical electromagnetic data deposit seg international exposition farquharson unstructured grid modeling software engineering equation e-field method reservoir characterization geophysics finite-volume time-domain modeling conductor...

... ABSTRACT We carry out the inversion of marine controlled-source electromagnetic data using real coded genetic algorithm to estimate the isotropic resistivity. Unlike linearized inversion methods, genetic algorithms belonging to class of stochastic methods are not limited by the requirement...

... measurements. Presentation Date: Wednesday, October 17, 2018 Start Time: 1:50:00 PM Location: 213A (Anaheim Convention Center) Presentation Type: Oral orthonormal basis algorithm upstream oil & gas massive sulfide model annual meeting subspace greatem data time domain electromagnetic data...

... We carry out the two-dimensional inversion of marine controlled-source electromagnetic data from the SEG advance modeling program using MARE2DEM Software.We applied this inversion on three survey lines from the given data set to image the salt body and delineate thin hydrocarbon reservoirs...

... exposition descent method reservoir characterization artificial intelligence machine learning data inversion geophysics supervised descent method information application electromagnetic data true model training model inversion descent direction transient em data inversion model parameter...

... PM Location: 213B (Anaheim Convention Center) Presentation Type: Oral receiver upstream oil & gas transient electromagnetic method conductivity secondary field susceptibility motem method reservoir characterization geophysics eddy current electromagnetic data elevation...