Over the past five years, extensive 2D long offset broadband seismic data (110,000 line km) has been acquired offshore Newfoundland and Labrador, Canada. These new seismic programs have targeted the...
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We address the signal and noise separation problem where the noise is coherent. We use a dictionary learning method to learn a dictionary of unit vectors called atoms; each one representing an...
Author: Lingyun Qiu
We propose a new regularization scheme for Full Waveform Inversion (FWI). The new method makes use of a priori information on the spatial variability of the earth model to overcome the limitations of...
Author: Joel Skogman, Johan Mattsson,
The resolution of resistivity models from 3D inversion of Towed Streamer EM data is analyzed using the resolution matrix. In particular, a new resolution length derived from the resolution matrix is...
Author: Dan Whitmore
This presentation reviews imaging technologies applied to both primaries and multiples, with particular emphasis on the value of multiples in wide azimuth scenarios. Included is a discussion of...
Author: Cyrille Reiser, Tim Bird
For almost 10 years now marine broadband seismic has provided the industry access to seismic data with a significant increase of seismic frequency bandwidth on both the low side of the frequency...
Reflection tomography is an effective way to build anisotropic velocity and Q models for seismic imaging. However, reflection tomography suffers from a nonuniqueness problem, even when it only...
Based on an example acquired with dual-sensor towed-streamers and time and depth distributed sources, we image the total up and down going wavefields using primaries and multiples. The imaging...