Adaptive waveform inversion

Adaptive waveform inversion: Theory | GEOPHYSICS - SEG Library

Adaptive waveform inversion (AWI) provides a new form of full-waveform inversion (FWI) that appears to be immune to the problems otherwise generated by cycle ...

Adaptive waveform inversion: Practice | GEOPHYSICS - SEG Library

Full-waveform inversion (FWI) is a seismic data inversion technique that seeks to recover a high-resolution model of subsurface physical properties by ...

Localized adaptive waveform inversion: theory and numerical ...

We propose to account for the non-stationary relation between observed and predicted data through a local in-time deconvolution technique.

Frequency domain adaptive waveform inversion - CREWES

Full waveform inversion (FWI) attempts to find a high-resolution model of subsur- face parameters, carrying a high likelihood of having produced the ...

Adaptive Waveform Inversion - S-Cube

Adaptive Waveform Inversion. Salt is the biproduct of evaporation in basins and forms horizontal layers like sedimentary rocks. However, salt is geologically ...

Adaptive waveform inversion - FWI without cycle skipping

This adaptive FWI scheme is demonstrated on synthetic data where it is shown to be immune to cycle skipping, and is able to invert successfully data for which ...

Adaptive Waveform Inversion for Transmitted Wavefields - arXiv

Adaptive Waveform Inversion applied to transient transmitted wave data yields estimates of index of refraction (or wave velocity) similar to ...

Adaptive Waveform Inversion

Waveform Inversion. Adrian Umpleby, Mike Warner & Lluis Guasch. Imperial ... Adaptive Waveform Inversion. Page 14. AWI. 14. Reflection AWI. Page 15. AWI. 15. (a) ...

(PDF) Adaptive Waveform Inversion: Practice - ResearchGate

PDF | Adaptive waveform inversion (AWI) reformulates the misfit function used to perform full-waveform inversion (FWI), so that it no longer ...

Adaptive Waveform Inversion for Transmitted Wave Data - arXiv

Adaptive Waveform Inversion (AWI) applied to transient transmitted wave data can yield estimates of index of refraction (or wave velocity) ...

Adaptive waveform inversion - Abstract - IPAM

Adaptive waveform inversion. Michael Warner Imperial College. [Joint work with Lluis Guasch (S-Cube London) and Felix Herrmann (UBC Vancouver)]

Data-adaptive global full-waveform inversion - Oxford Academic

It displays both velocities of the horizontally and vertically polarized shear waves (VSH and VSV). The inversion uses long-period waveforms (100–200 s), which ...

Adaptive structure-based full-waveform inversion - GeoScienceWorld

The proposed adaptive structure-based FWI is characterized by several features. First, the adaptive structure-based FWI is more efficient than ...

Robust adaptive waveform inversion - OnePetro

Adaptive Waveform Inversion (AWI) was introduced by. Warner & Guasch (2014) as a means to avoid cycle skipping during full-waveform inversion. Here we.

Sparse Adaptive Waveform Inversion for Rapid Sub-Basalt ... - S-Cube

Sparse Adaptive Waveform Inversion for Rapid Sub-Basalt Prospect Identification. Identifying hydrocarbon prospects beneath basaltic layers has historically ...

On the Method of Adaptive Waveform Inversion with Zeroâ

For example, how to select the first downgoing wave for some waveform inversion, or how to determinate the spectral bandwidth for the frequency domain direct ...

Sparse adaptive waveform inversion for rapid sub-basalt prospect ...

Summary We show that it is possible to use low-cost, sparse, adaptive waveform inversion, operating at a maximum frequency of only 4 Hz, ...

(PDF) Improving adaptive waveform inversion by local matching filter

Abstract. The adaptive waveform inversion uses a convolutional matching filter to implicitly estimate time shift between observed and predicted data, which can ...

Adaptive multi-step Full Waveform Inversion based on Waveform ...

In this paper, we use adjoint-state method to calculate the gradient for Waveform Mode Decomposition Full Waveform Inversion (WMDFWI).

Localized adaptive waveform inversion: theory and numerical ...

This strategy generalizes the conventional normalized deconvolution technique, which has been popularized under the name of adaptive waveform inversion. To ...