Seismic Soundoff

• From Differences to Inversion: A New Era for 4D Seismic

  “Repeatability is the biggest hurdle in time-lapse monitoring, but it’s also where the opportunity lies. 4D FWI can help address those repeatability challenges.” On this episode, Andrew Geary sits down with Madhav Vyas and Kris Innanen, guest editors for July’s The Leading Edge special section on 4D full-waveform inversion. They explain how 4D FWI goes beyond traditional differencing by fully inverting wavefields, making time-lapse seismic more robust against survey inconsistencies and complex overburden. Listeners will learn why now is the perfect time to adopt 4D FWI, the main technical hurdles around repeatability and uncertainty, and the first steps to take for reservoir monitoring and survey design. KEY TAKEAWAYS > 4D FWI inverts the full wavefield - reflections, refractions, diving waves, multiples - to detect reservoir changes, making it more robust than conventional 4D processing. > Repeatability of surveys and assessing uncertainty are the biggest challenges, but workflows like hypothesis testing, batch FWI, and null-space shuttling help mitigate inversion noise. > High-quality data and accurate physics (elasticity, attenuation, anisotropy) are essential; advances in GPU-driven computation enable faster iterations and richer uncertainty analysis. CALL TO ACTION Read July's The Leading Edge special section on 4D FWI at https://library.seg.org/toc/leedff/44/7, then explore an open-source FWI toolbox. LINKS * Visit https://seg.org/podcasts/episode-265-from-differences-to-inversion-a-new-era-for-4d-seismic for the complete show notes.

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• Fieldwork That Changes Lives: Inside the Matagorda Bay Field Trip

  “Geoscientists without Borders shows how geophysics isn’t just for oil and gas; it’s for helping people and communities.” In this episode, Shuhab Khan and David Bartel share how the SEG Foundation and Geoscientists without Borders are helping build resilient coastal communities through the Matagorda Bay Field Trip at IMAGE ‘25. Shuhab explains how students and professionals will get hands-on experience using cutting-edge tools to monitor coastal erosion and habitat stability while learning to apply geophysics for societal impact. David highlights how the SEG Foundation’s support makes these initiatives possible, encouraging listeners to support and join this important mission. KEY TAKEAWAYS > Learn how drone surveys, satellite data, and ground-penetrating radar are used to monitor erosion and protect vulnerable coastal areas. > Understand why coastal resilience is a humanitarian need and how geophysics can directly support community safety and environmental stability. > Discover how Geoscientists without Borders and the SEG Foundation enable field opportunities that connect science with real-world solutions for energy, water, and climate challenges. CALL TO ACTION Sign up for the Matagorda Bay Field Trip at IMAGE ‘25 at https://www.imageevent.org/short-courses/field-trip-2025/building-resilient-coastal-communities-at-matagorda-bay%E2%80%93a-geoscientists-without-borders to experience hands-on geophysics that helps coastal communities. LINKS * Register for IMAGE 2025 at https://www.imageevent.org/ * Visit https://seg.org/podcasts/episode-264-fieldwork-that-changes-lives-inside-the-matagorda-bay-field-camp for the complete show notes.

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• Inside IMAGE 2025 - Innovation, Collaboration, and the Future of Energy

  “We want attendees to walk away saying they learned something new, made a new connection, or heard a crazy idea that just might change how they work. That’s the success we hope IMAGE brings.” In this episode of Seismic Soundoff, Julian Chenin and Paula de Oliveira share what makes IMAGE 2025 the premier geoscience event you won’t want to miss. From global collaboration and interactive pavilions to fostering the next generation of geoscientists, they reveal how IMAGE is shaping the future of energy and applied geophysics. Whether you’re looking to learn, network, or discover a new idea, this conversation will inspire you to get the most out of your IMAGE experience. KEY TAKEAWAYS > IMAGE is more than a conference; it’s a global, collaborative space where geoscientists, students, and industry leaders tackle energy challenges together while celebrating the profession. > New and expanded features like core displays, K-12 engagement, and networking hubs are designed to connect you with emerging technologies, fresh ideas, and career opportunities. > Planning using the IMAGE preview guide will help you make the most of your time, ensuring you catch key technical sessions, panels, and the conversations that can spark your next breakthrough. CALL TO ACTION Explore the IMAGE 2025 Preview Guide at https://imageevent.org/ and start planning your conference experience today. And if you’re ready to give back, consider volunteering or mentoring to help shape the next generation of geoscientists while expanding your network and skills. THIS EPISODE SPONSORED BY KATALYST DATA MANAGEMENT Katalyst Data Management® provides the only fully integrated, end-to-end subsurface data solution to the oil and gas industry. Visit us at IMAGE 2025, Booth #1129, from August 25–28 to meet our global team and learn how we help clients gain value from their seismic and well data. We’ll have live demos and presentations of our latest technology and what’s next in subsurface data. Learn more at www.katalystdm.com and socials. LINKS * Register for IMAGE 2025 at https://www.imageevent.org/ * Read the Preview Guide at https://irp.cdn-website.com/3c79eb10/files/uploaded/IMG25_PreviewGuide_Rev20250701_web.pdf * Visit https://seg.org/podcasts/episode-263-image-2025-innovation-collaboration-and-the-future-of-energy/ for the complete show notes.

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• 262: More Than Membership - Turning SEG Engagement into Career Growth

  "Volunteering helps you build your network, sharpen your skills, and open doors you didn’t know existed." In this episode of Seismic Soundoff, SEG all-star volunteers Sergio Chávez-Pérez and Joe Reilly reflect on their recent articles in The Leading Edge’s President's Page series. They delve into the importance of professional growth, how SEG supports geophysicists worldwide, and why now is a pivotal time for the profession. With decades of experience and deep involvement in SEG, they offer wisdom, encouragement, and actionable advice for navigating today's changing energy and tech landscapes. KEY TAKEAWAYS > Stay curious and connected: Volunteering with SEG builds professional networks, encourages lifelong learning, and often leads to unexpected opportunities. > Adapt to change: The energy transition, AI, and global opportunities are transforming the geosciences - SEG webinars, journals, and programs help you stay ahead. > Understand before you apply: AI is powerful, but critical thinking and understanding the fundamentals are key to meaningful application in geophysics. CALL TO ACTION Read Sergio and Joe’s President's Page articles in The Leading Edge to dive deeper into their ideas. And if you’re inspired, get involved - join a webinar, volunteer, or become a mentor. SEG thrives because of passionate members like you. LINKS * Joseph Reilly, (2025), "President's Page: What excites you (professionally)?," The Leading Edge 44: 241–242. https://doi.org/10.1190/tle44040241.1 * Sergio Chávez-Pérez, (2025), "President's Page: Follow, understand, and do with SEG's help," The Leading Edge 44: 77–77. https://doi.org/10.1190/tle44020077.1 * Visit https://seg.org/podcasts/episode-262-more-than-membership-turning-seg-engagement-into-career-growth/ for additional links.

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• 261: Innovations in Land Seismic Acquisition with Andrea Crook

  "We're seeing rapid advances both in seismic acquisition technologies and in processing techniques. In order to get data that is appropriate for full waveform inversion, you have to rethink how you're acquiring the data in the field." In this episode, host Andrew Geary speaks with Andrea Crook, CEO of OptiSeis and lead instructor of the IMAGE 2025 short course, Innovations in Land Seismic Acquisition. Andrea explores the seismic design landscape, breaking down how advances in sources, sensors, sampling, and sustainability are reshaping land acquisition. Listeners will walk away with practical strategies to enhance survey quality, minimize environmental impact, and more effectively connect acquisition with processing and interpretation. KEY TAKEAWAYS > Innovations in survey design, such as high-density Vibroseis and nodal systems, lead to improved data and safer operations. > Sustainability in seismic acquisition isn’t just good for the planet - it also drives cost efficiency and long-term data value. > Course attendees will learn how to evaluate survey trade-offs, enhance trace density, and make informed decisions using real-world examples. CALL TO ACTION Ready to improve your surveys and future-proof your data? Sign up for Innovations in Land Seismic Acquisition at IMAGE 2025. This hands-on short course, led by Andrea Crook, covers the latest technologies, field-tested strategies, and real-world examples to boost your survey success. Separate registration is required; please reserve your spot at https://www.imageevent.org/short-courses/short-course-25/innovations-in-land-seismic-acquisition-seg. GUEST BIO Andrea Crook, P.Geoph., is the CEO of OptiSeis, a company she co-founded in 2011 to provide innovative solutions for accurate subsurface imaging. Andrea graduated from the University of Manitoba with a B.Sc. Honours in Geophysics and began her career at Shell Canada in seismic processing and geophysical operations. Based on her extensive contributions to the field of geophysics, she received the 2019 CSEG Technical Achievement Award and was the Society’s 2023 Symposium Honouree. She is also on the Board of Directors for the Clean Resource Innovation Network (CRIN), was selected to present the 2024/25 CSEG Canadian Distinguished Lecture Tour, and is the recipient of both the 2019 and 2024 GeoConvention Best Paper Award. Through active collaboration with industry and academia, she and her team continue to develop innovative solutions for environmentally sustainable subsurface imaging. LINKS * Sign up for Innovations in Land Seismic Acquisition at IMAGE 2025 at https://www.imageevent.org/short-courses/short-course-25/innovations-in-land-seismic-acquisition-seg * Visit https://seg.org/podcasts/episode-261-innovations-in-land-seismic-acquisition-with-andrea-crook for all the resources mentioned in this episode.

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