"Geophysics plays a central role in this energy transition because it provides the tools and insights needed to understand, manage, and optimize subsurface resources. These resources are critical for both traditional and renewable energy systems."
Geophysics is essential for geothermal energy, carbon storage, hydrogen storage, and critical minerals. Joël Le Calvez and Erkan Ay explain how methods like multi-physics workflows and distributed acoustic sensing are improving reliability, scalability, and safety. They also highlight the skills and mindset geophysicists need to succeed in a rapidly changing energy landscape.
Read the October issue of The Leading Edge that features a special section about geophysics for new energies at https://library.seg.org/toc/leedff/44/10.
KEY TAKEAWAYS
> Geophysics provides the foundation for safe, efficient, and scalable use of subsurface resources in the energy transition.
> Multi-physics workflows and DAS technologies reduce uncertainty and improve monitoring of geothermal and storage projects.
> Future geophysicists must combine technical expertise with adaptability, collaboration, and field experience.
GUEST BIOS
Joël Le Calvez is Principal Geologist at SLB, where he develops software for processing, visualization, and interpretation of microseismic monitoring data. His work supports applications ranging from hydraulic fracture treatment to CO₂ sequestration and geothermal injection, using downhole, shallow wellbore, and surface arrays. Before joining SLB, Joël contributed to research at the Bureau of Economic Geology’s Applied Geodynamics Laboratory and at Etudes et Recherches Géotechniques. He holds a Ph.D. in salt tectonics, an M.Sc. in geosciences, and a B.Sc. in physics.
Erkan Ay is an accomplished geophysicist with more than 18 years of international experience across oil and gas, carbon capture and storage, and academic research. He is recognized for advancing techniques in microseismic monitoring, DAS, 4D VSP, and seismic-while-drilling. Erkan’s work integrates seismology and petrophysics to better characterize complex subsurface structures. Currently, Erkan serves as Chair of the SEG Research Committee and Vice Chair of the SEG IMAGE 2026 Technical Committee, guiding collaborative efforts to advance geophysics for sustainable energy solutions.
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"Geophysics plays a central role in this energy transition because it provides the tools and insights needed to understand, manage, and optimize subsurface resources. These resources are critical for both traditional and renewable energy systems."
Geophysics is essential for geothermal energy, carbon storage, hydrogen storage, and critical minerals. Joël Le Calvez and Erkan Ay explain how methods like multi-physics workflows and distributed acoustic sensing are improving reliability, scalability, and safety. They also highlight the skills and mindset geophysicists need to succeed in a rapidly changing energy landscape.
Read the October issue of The Leading Edge that features a special section about geophysics for new energies at https://library.seg.org/toc/leedff/44/10.
KEY TAKEAWAYS
> Geophysics provides the foundation for safe, efficient, and scalable use of subsurface resources in the energy transition.
> Multi-physics workflows and DAS technologies reduce uncertainty and improve monitoring of geothermal and storage projects.
> Future geophysicists must combine technical expertise with adaptability, collaboration, and field experience.
GUEST BIOS
Joël Le Calvez is Principal Geologist at SLB, where he develops software for processing, visualization, and interpretation of microseismic monitoring data. His work supports applications ranging from hydraulic fracture treatment to CO₂ sequestration and geothermal injection, using downhole, shallow wellbore, and surface arrays. Before joining SLB, Joël contributed to research at the Bureau of Economic Geology’s Applied Geodynamics Laboratory and at Etudes et Recherches Géotechniques. He holds a Ph.D. in salt tectonics, an M.Sc. in geosciences, and a B.Sc. in physics.
Erkan Ay is an accomplished geophysicist with more than 18 years of international experience across oil and gas, carbon capture and storage, and academic research. He is recognized for advancing techniques in microseismic monitoring, DAS, 4D VSP, and seismic-while-drilling. Erkan’s work integrates seismology and petrophysics to better characterize complex subsurface structures. Currently, Erkan serves as Chair of the SEG Research Committee and Vice Chair of the SEG IMAGE 2026 Technical Committee, guiding collaborative efforts to advance geophysics for sustainable energy solutions.
How Distributed Chemical Sensing Could Rewrite the Rules of Risk Management
Seismic Soundoff
26 minutes 46 seconds
1 month ago
How Distributed Chemical Sensing Could Rewrite the Rules of Risk Management
“Distributed chemical sensing really is the next frontier in fiber-optic monitoring. It adds a new dimension by directly connecting chemical changes in the environment to signals we can read.”
Distributed chemical sensing (DCS) is an emerging technology that utilizes fiber optics to measure chemical changes over long distances in real-time. Authors Christian Totland, Thomas Dylan Mikesell, and Peter James Thomas join host Andrew Geary to discuss their new paper, "Distributed chemical sensing: An unexplored frontier in urban, industrial, and environmental monitoring." Unlike traditional point sensors, which only capture data at one location, DCS has the potential to provide continuous chemical information with both high spatial and temporal resolution. This innovation could transform how we monitor pipelines, groundwater, and industrial sites, while also opening new opportunities for collaboration between geophysics, chemistry, and material science.
KEY TAKEAWAYS
> DCS can detect leaks, contamination, and chemical changes directly, offering more accurate monitoring than pressure or temperature proxies.
> The technology is still in its early stages, which means there are many opportunities for research, innovation, and interdisciplinary collaboration.
> If developed further, DCS could provide affordable, real-time monitoring for critical infrastructure and environmental systems worldwide.
LINKS
* Christian Totland, Thomas Dylan Mikesell, and Peter James Thomas, (2025), "Distributed chemical sensing: An unexplored frontier in urban, industrial, and environmental monitoring," The Leading Edge 44: 598–605. - https://doi.org/10.1190/tle44080598.1
* Learn more about this special section on urban and infrastructure geophysics - https://library.seg.org/doi/10.1190/tle44080587.1
* Listen to Haipeng Li's interview (also from this special section) - https://seg.org/podcasts/episode-271-the-low-cost-seismic-revolution-already-buried-in-your-city/
Seismic Soundoff
"Geophysics plays a central role in this energy transition because it provides the tools and insights needed to understand, manage, and optimize subsurface resources. These resources are critical for both traditional and renewable energy systems."
Geophysics is essential for geothermal energy, carbon storage, hydrogen storage, and critical minerals. Joël Le Calvez and Erkan Ay explain how methods like multi-physics workflows and distributed acoustic sensing are improving reliability, scalability, and safety. They also highlight the skills and mindset geophysicists need to succeed in a rapidly changing energy landscape.
Read the October issue of The Leading Edge that features a special section about geophysics for new energies at https://library.seg.org/toc/leedff/44/10.
KEY TAKEAWAYS
> Geophysics provides the foundation for safe, efficient, and scalable use of subsurface resources in the energy transition.
> Multi-physics workflows and DAS technologies reduce uncertainty and improve monitoring of geothermal and storage projects.
> Future geophysicists must combine technical expertise with adaptability, collaboration, and field experience.
GUEST BIOS
Joël Le Calvez is Principal Geologist at SLB, where he develops software for processing, visualization, and interpretation of microseismic monitoring data. His work supports applications ranging from hydraulic fracture treatment to CO₂ sequestration and geothermal injection, using downhole, shallow wellbore, and surface arrays. Before joining SLB, Joël contributed to research at the Bureau of Economic Geology’s Applied Geodynamics Laboratory and at Etudes et Recherches Géotechniques. He holds a Ph.D. in salt tectonics, an M.Sc. in geosciences, and a B.Sc. in physics.
Erkan Ay is an accomplished geophysicist with more than 18 years of international experience across oil and gas, carbon capture and storage, and academic research. He is recognized for advancing techniques in microseismic monitoring, DAS, 4D VSP, and seismic-while-drilling. Erkan’s work integrates seismology and petrophysics to better characterize complex subsurface structures. Currently, Erkan serves as Chair of the SEG Research Committee and Vice Chair of the SEG IMAGE 2026 Technical Committee, guiding collaborative efforts to advance geophysics for sustainable energy solutions.
