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Seismic Soundoff

Seismic Soundoff

In-depth conversations in applied geophysics.

 
     

12 Jan 2022

Episode 138: The power and pitfalls of modern geostatistical models

Danilo Jotta Ariza Ferreira discusses modern geostatistic methodologies from the December 2021 special section on Latin America in The Leading Edge. Danilo shares how to avoid two common pitfalls in geostatistical modeling, why models are always wrong (but you should still use them), and highlights a few innovations in seismic-based geophysical solutions.

05 Jan 2022

Episode 137: How near-surface geophysics protects the world

Klaus Holliger discusses his 2022 Honorary Lecture, "Using Near-Surface Geophysics to Estimate Soil and Rock Physical Properties." Klaus and host Andrew Geary explore near-surface geophysics using Klaus's Honorary Lecture as a starting point. They discuss the advantages of geostatistical techniques and two approaches to relating easy-to-measure geophysical data to more elusive rock and soil physical properties. This episode showcases the value of near-surface geophysics to the public and highlights cutting-edge techniques to better understand what's happening under our feet.

16 Dec 2021

Episode 136: The hidden stories data tell

Joe Dellinger discusses his 2022 Distinguished Instructor Short Course, "Forensic data processing." The goal of Joe's course - and this conversation - is to get you thinking more critically about your data. How was it recorded? What is in it? What happened to it on the way from the field to numbers in a file? Joe brings his experience, expertise, wisdom, and humor to this essential conversation on data that will be valuable for every geophysicist. Start the new year with the fresh insights presented in this episode.

08 Dec 2021

Episode 135: The new paradigms in seismic inversion

Miguel Bosch discusses his Honorary Lecture, "The new paradigms in seismic inversion." Miguel explains how elastic Full Waveform Inversion and the Markov Chain Monte Carlo approach improve seismic inversion, discusses if data analysis and machine learning are essential to practice inversion, and highlights new tools that will improve the accuracy of inversion. This conversation provides great value and insight into the essential work of inversion.

02 Dec 2021

Episode 134: How to lower risk and operate more efficiently

Thomas Finkbeiner discusses geomechanics from the November 2021 special section in The Leading Edge. In this episode, Thomas highlights the link between geophysics and geomechanics in developing renewable and unconventional resources, explores case studies presented in the special section, shares the current state of research on induced seismicity during CO2 injection, and illustrates how geomechanics impacts the entire life cycle of a reservoir. 

10 Nov 2021

Episode 132: The essential role of industry for long-term CO2 storage

Mark Zoback discusses his Honorary Lecture, "Geomechanical Issues Affecting Long-Term Storage of CO2." In this episode, Mark highlights how oil and gas companies are best positioned to address the needs for large-scale carbon storage. He also discusses the role of depleted oil and gas reservoirs for CO2 storage, as well as the geomechanical issues that have to be considered. 

03 Nov 2021

Episode 131: How to mine old theories for new insights

Vemund Thorkildsen discusses his paper, "Revisiting holistic migration," published in October's The Leading Edge. In this episode, Vemund discusses questioning the Nyquist-Shannon sampling theorem, mining gaps in past research, and examining the applicability of holistic migration to seismic field data. He also shares how he connected with Enders Robinson to serve as co-author on the paper.

21 Oct 2021

Episode 130: Why theory and perfect data are necessary for seismic analysis

Michael Burianyk discusses his new book, Understanding Amplitudes: Basic seismic analysis for rock properties. Michael explains why Newton's ideas still matter despite Einstein, how to approach machine learning with healthy skepticism, why real data can be a hindrance to learning, and why he took the time to discover who was R. Hill. This is a conversation that scientists of all experiences will benefit from and learn.

14 Oct 2021

Episode 129: Improving and reducing biases with a novel theory

Henning Hoeber discusses a new tool for rock physics in his recent paper published in September's The Leading Edge. In this episode, Henning explains the theory of omitted variable bias (OVB) and its connection to rock physics, why OVB hasn't appeared before in the geoscience literature, how OVB helps geophysicists understand biases in models, the real-world implications for improving a bias model, and how he will apply OVB to his future research.

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