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A fast wavefield reconstruction inversion solution in the frequency domain

期刊: GEOPHYSICS, 2023; 88 (3)

Full-waveform inversion (FWI) aims at estimating subsurface physical parameters by minimizing the misfit between simulated data and observations. FWI ......

P/S-wave separation of multicomponent seismic data at the land surface based on deep learning

期刊: GEOPHYSICS, 2023; 88 (3)

P/S-wave separation is a key step for data processing in multicomponent seismic exploration. The conventional methods rely on either the prior informa......

Markov chain Monte Carlo for seismic facies classification

期刊: GEOPHYSICS, 2023; 88 (3)

Seismic facies classification aims to predict a facies model, or a set of facies models, from measured seismic data. We focus on stochastic classifica......

Improved least-squares migration through double-sweeping solver

期刊: GEOPHYSICS, 2023; 88 (3)

Based on a recently developed approximate wave-equation solver, we have developed a methodology to reduce the com-putational cost of seismic migration......

Finite-difference modeling with topography using 3D viscoelastic parameter-modified free-surface condition

期刊: GEOPHYSICS, 2023; 88 (4)

The free-surface boundary condition is a crucial aspect in the numerical modeling of (visco)elastic wave equations, especially when using a finite-dif......

Direct inversion for shale brittleness index using a delayed rejection adaptive Metropolis-Markov chain Monte Carlo method

期刊: GEOPHYSICS, 2023; 88 (5)

The reservoir brittleness index can characterize the relative brittleness of shale oil and gas reservoirs, which provides guidance for hydraulic fract......

Full-waveform inversion by model extension: Theory, design, and optimization

期刊: GEOPHYSICS, 2023; 88 (5)

We describe a new method, full-waveform inversion by model extension (FWIME), that recovers accurate acoustic subsurface velocity models from seismic ......

Ensemble empirical mode decomposition and stacking model for filtering borehole distributed acoustic sensing records

期刊: GEOPHYSICS, 2023; 88 (1)

We have evaluated the ensemble empirical mode decomposition (EEMD) and stacking model for borehole seismic-data denoising. The borehole records collec......

Reservoir multiparameter prediction method based on deep learning for CO2 geologic storage

期刊: GEOPHYSICS, 2023; 88 (1)

Time-lapse seismic difference refers to the comprehensive re-sponse of fluid saturation, pore pressure, and porosity. However, the contribution of dif......

A two-step singular spectrum analysis method for robust low-rank approximation of seismic data

期刊: GEOPHYSICS, 2023; 88 (1)

The singular spectrum analysis (SSA) method can detect the low-rank structure of data and therefore has become a powerful tool in seismic data process......

Retrieving useful signals from highly corrupted erratic noise using robust residual dictionary learning

期刊: GEOPHYSICS, 2023; 88 (1)

Seismic denoising will inevitably cause signal leakage, which is seen as coherent signal energy in the removed noise profile. Most traditional methods......

Thermal cycling effects on the seismic wave propagation coefficients of granite

期刊: GEOPHYSICS, 2023; 88 (2)

The seismic wave propagation properties of granite after thermal cycles were experimentally investigated. The granite specimens were subjected to a se......

Machine-learning inversion via adaptive learning and statistical sampling: Application to airborne micro-TEM for seismic sand corrections

期刊: GEOPHYSICS, 2023; 88 (3)

We develop a novel physics-adaptive machine-learning (ML) inversion scheme showing optimal generalization capabilities for field data applications. We......

Target-oriented elastic full-waveform inversion through acoustic extended image-space redatuming

期刊: GEOPHYSICS, 2023; 88 (3)

Elastic full-waveform inversion (FWI) can provide accurate and high-resolution subsurface parameters. However, its high computational cost prevents th......

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