Field-scale fault reactivation experiments by fluid injection highlight aseismic leakage in caprock analogs: Implications for CO2 sequestration

Y Guglielmi, C Nussbaum, F Cappa, L De Barros… - International Journal of …, 2021 - Elsevier
Observations on tens-of-meter scale experiments of fault activation by fluid injection
conducted in shales allow exploring how aseismic and seismic events may jeopardize the …

Fluid migration in low-permeability faults driven by decoupling of fault slip and opening

F Cappa, Y Guglielmi, C Nussbaum, L De Barros… - Nature …, 2022 - nature.com
Understanding the response of faults to the injection of high-pressure fluids is important for
several subsurface applications, for example, geologic carbon sequestration or energy …

[HTML][HTML] CD-A twin niches in the Mont Terri Rock Laboratory: Characterization and interpretation of hydraulic parameters with regard to safety aspects

G Ziefle, T Cajuhi, S Costabel, A Fourriére… - International Journal of …, 2024 - Elsevier
Abstract In the Mont Terri Rock Laboratory (Switzerland), a comprehensive interdisciplinary
exploration program is carried out to increase knowledge about long-term coupled hydraulic …

In-situ experiment reveals CO2 enriched fluid migration in faulted caprock

UW Weber, AP Rinaldi, C Roques, QC Wenning… - Scientific Reports, 2023 - nature.com
The sealing characteristics of the geological formation located above a CO2 storage
reservoir, the so-called caprock, are essential to ensure efficient geological carbon storage …

Architecture and permeability structure of the Sibillini Mts. Thrust and influence upon recent, extension-related seismicity in the central Apennines (Italy) through fault …

M Curzi, A Cipriani, L Aldega, A Billi… - …, 2024 - pubs.geoscienceworld.org
The central Apennines are a fold-thrust belt currently affected by post-orogenic extensional
seismicity. To constrain the influence that the inherited thrust-related structures exert on the …

Two-Phase Flow Mechanisms Controlling CO2 Intrusion into Shaly Caprock

IR Kivi, RY Makhnenko, V Vilarrasa - Transport in Porous Media, 2022 - Springer
Geologic carbon storage in deep saline aquifers has emerged as a promising technique to
mitigate climate change. CO2 is buoyant at the storage conditions and tends to float over the …

Fault sealing and caprock integrity for CO2 storage: an in-situ injection experiment

A Zappone, AP Rinaldi, M Grab, Q Wenning… - Solid Earth …, 2020 - se.copernicus.org
The success of geological carbon storage depends on the assurance of a permanent
confinement of the injected CO 2 in the storage formation at depth. One of the critical …

Active‐Source Seismic Imaging of Fault Re‐Activation and Leakage: An Injection Experiment at the Mt Terri Rock Laboratory, Switzerland

TA Shadoan, JB Ajo‐Franklin… - Geophysical …, 2023 - Wiley Online Library
We conducted a time‐lapse seismic experiment utilizing automated active seismic source
and sensor arrays to monitor a reactivated fault within the Opalinus clay formation at the …

Strain partitioning and frictional behavior of opalinus clay during fault reactivation

V Schuster, E Rybacki, A Bonnelye, G Kwiatek… - Rock Mechanics and …, 2023 - Springer
Abstract The Opalinus Clay (OPA) formation is considered a suitable host rock candidate for
nuclear waste storage. However, the sealing integrity and long-term safety of OPA are …

Microstructural characterization of natural fractures and faults in the Opalinus Clay: insights from a deep drilling campaign across central northern Switzerland

IV Akker, R Schneeberger, M Herwegh… - Swiss journal of …, 2023 - Springer
Abstract The Middle-Jurassic Opalinus Clay is the foreseen host rock for radioactive waste
disposal in central northern Switzerland. An extensive drilling campaign aiming to …