Excited to share our new paper! We conducted a new thermodymics-based analysis of diffusive transport in geologic systems with multiple partially-soluble fluids, focusing on the important cases of CO2 and H2. We show that in the presence of a geothermal gradient, entropic contributions can reverse the direction of diffusion! This was completely counter-intuitive to me and a fascinating result. We predict that for essentially all realistic geologic carbon storage scenarios, diffusion will drive CO2 downwards. For underground hydrogen storage, the picture is more complicated; H2 will likely diffuse upwards but might reverse direction in deep or high-temperature gradient systems. Published in PRE, with Ruotong Huang and Adrian Sheppard: https://lnkd.in/gpDApcYy (an almost identical version is at arXiv: https://lnkd.in/gUGWpQCs)
Anna Herring’s Post
More Relevant Posts
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We are organizing Session ST2.2 entitled "Solar Wind’s Coupling with Magnetospheres and Ionospheres and Its Consequential Phenomena" at the European Geosciences Union (EGU) General Assembly in Vienna, 27 April–2 May 2025. Please consider submitting an abstract to this session! https://lnkd.in/d4FXicy5
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We are excited to announce our latest publication on Geophysical Research Letters! 📝 Chiara, Martina, Monica, and Alberto have just published a paper entitled “Stochastic Assessment of Dissolution at Fluid‐Mineral Interfaces“. The article illustrates #experimental protocols and #modeling approaches designed to evaluate and characterize absolute dissolution rates at the #nanoscale 🔬 https://lnkd.in/dgBDmgmn
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📖Book to read: "How to Store CO2 Underground: Insights from early-mover CCS Projects" (SpringerBriefs in Earth Sciences) Paperback – 2 Jan. 2020 by Philip Ringrose. 📖This book introduces the scientific basis and engineering practice for CO2 storage, covering topics such as storage capacity, trapping mechanisms, CO2 phase behaviour and flow dynamics, engineering and geomechanics of geological storage, injection well design, and geophysical and geochemical monitoring. It also provides numerous examples from the early mover CCS projects, notably Sleipner and Snøhvit offshore Norway, as well as other pioneering CO2 storage projects📖. Link: https://lnkd.in/dnHaqK5d #CO2Storage #CCSProjects #Geomechanics #GeologicalStorage #InjectionWells #GeophysicalMonitoring #GeochemicalMonitoring #ClimateChangeMitigation
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This paper by @Peter Niemz et al., recently published in Geothermics, describes seismic observations from the circulation tests at FORGE using only the regional (near-) surface network of the University of Utah Seismograph Stations. https://lnkd.in/gJaG3DA4
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PhD student at University of Parma (Italy) on Natural Hydrogen Exploration / Geology and Geophysics Specialist at ANP (Brazilian National Agency of Petroleum, Natural Gas and Biofuels)
I am happy to announce the publication of our paper on the evaluation of the natural hydrogen system in the São Francisco Basin, Brazil. In this study we used the available subsurface data, including seismic, magnetic, and well data, to evaluate hydrogen occurrences in the basin. My sincere thanks to all co-authors - Moretti Isabelle, alain prinzhofer, João Françolin and Professor Francisco Ferreira - for their collaboration and insightful discussions. https://lnkd.in/dt9gepdg
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H2EX and CSIRO will be presenting a poster at upcoming international conferences. This research is the result of two CSIRO Kick-Start Projects completed in 2022-23 and found: ✅ Desktop and field studies of H2EX’s exploration license highlights significant evidence for hydrogen seepage; and ✅ The soil sampling field survey concluded that high-confidence hydrogen seeps occur on the Eyre Peninsula. 👉 H-Nat Summit 24-25 Nov, Paris 👉 American Geophysical Union 9-13 Dec, Washington #naturalhydrogen #geologichydrogen #hydrogenexploration #earthscience #AGU24
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Our paper about mechanical behaviour on babolsar sand is now avalible in geomechanics and geoengineering journal under Taylor and Francis group via the below link: https://lnkd.in/g3MC-4mA
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Our Backscattered Electron and X-ray (BEX) technology allows for rapid mineralogical and textural characterization of carbon capture and storage (CCS) reservoir rocks, even with challenging samples. In our latest blog, discover how researchers use Oxford Instruments' technology to gain insights into the behavior and interactions of CO₂ within proposed reservoir rocks, which is crucial for advancing the realization of CCS. Find out how 👉 https://okt.to/h57AtP #BEX #BackscatteredElectronXray #TexturalCharacterisation #MineralogicalCharacterisation
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American Energy Technologies Co. (AETC) is thrilled about co-authoring, jointly with USGS (US Geological Survey), of a paper at America's top of the line geophysical forum, AGU24. The paper entitled: "Evaluating graphite properties during processing into battery feedstock: An example from the Ruby Graphite deposit, SW Montana" unveiled vast, separately occurring ore deposits of natural vein and natural crystalline flake graphite, proven suitable for conversion into battery grade graphite feedstock. Congratulations to AETC's Anna Doninger, Mansoor Qureshi and Dr. Maya Barsukov and to its co-authors from USGS: Dr. Rebecca Stokes, George Case, Jane Hammarstrom, Aaron Jubb, and Jay Thompson! A copy of the abstract can be found here: https://lnkd.in/gmBWmMZ3
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Petroleum Engineer
5mo" H2 will likely diffuse upwards but might reverse direction in deep or high-temperature gradient systems." WOW !