Analysis of simultaneous velocity and source parameter updates in microseismic FWI

N Igonin, KA Innanen - SEG Technical Program Expanded Abstracts …, 2018 - library.seg.org
In the microseismic field, a complete characterization of events involves determining the
positioning and focal mechanism properties, which requires an accurate seismic velocity …

[PDF][PDF] Seismic reflection and transmission within an extended scatterer

K Innanen - crewes.org
ABSTRACT A range of methods for making FWI stable in its construction of long wavelength
model components in deep regions of the model (relative to maximum offset) have been …

[PDF][PDF] A comparison of two reflection-based waveform inversion strategies

S Keating, J Li, K Innanen - crewes.org
Reflection-based waveform inversion is a set of strategies for updating the long-wavelength
part of a velocity model through the use of reflection data in a full waveform inversion …

Time-domain reflection-based waveform inversion

K Almuteri - SEG International Exposition and Annual Meeting, 2018 - onepetro.org
Full waveform inversion (FWI) is proven to be a successful high-resolution velocity model
building tool, when low-frequency information and long-offset data are available. Usually …

Applications of FWI to the microseismic source problem

N Igonin, K Innanen - 80th EAGE Conference and Exhibition 2018, 2018 - earthdoc.org
Full waveform inversion (FWI) is a method to find a model that minimizes the discrepancy
between true and modelled data, and is commonly used in marine seismic applications. FWI …