Articles | Volume 7, issue 3
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Development of a numerical workflow based on μ-CT imaging for the determination of capillary pressure–saturation-specific interfacial area relationship in 2-phase flow pore-scale porous-media systems: a case study on Heletz sandstone
Leibniz-Universität Hannover, Institute of Fluid Mechanics and Environmental Physics, Appelstraße 9A, 30167 Hannover, Germany
Georg-August Universität Göttingen, Department of Applied Geology, Goldschmidtstraße 3, 37077 Göttingen, Germany
Leibniz Institute for Applied Geophysics, Department 5, Petrophysics and Borehole Geophysics, Stilleweg 2, 30655 Hannover, Germany
Alexandru Bogdan Tatomir
Georg-August Universität Göttingen, Department of Applied Geology, Goldschmidtstraße 3, 37077 Göttingen, Germany
Georg-August Universität Göttingen, Department of Applied Geology, Goldschmidtstraße 3, 37077 Göttingen, Germany
No articles found.
Benjamin M. C. Fischer and Alexandru Tatomir
Geosci. Commun., 5, 261–274,Short summary
The aim of this paper is to communicate results of our survey giving a first overview and reflects how teaching of hydrology and water-related sciences changed due to COVID-19. Next to many negative aspects for teachers and students, a spirit of optimism, time of change and community initiatives could also be noticed. COVID-19 made it possible to explore novel teaching methods useful for modernizing education and making practical teaching formats accessible to all hydrology and water students.
Dejian Zhou, Alexandru Tatomir, and Martin Sauter
Adv. Geosci., 54, 229–240,Short summary
In this study, a coupled thermo-hydro-mechanical (THM) model is implemented to simulate the processes of heat extraction, reservoir deformation, and groundwater flow in the fractured rock reservoir. The results show that the growth of the number and spacing of fracture zones can effectively decrease the pore pressure difference between injection and abstraction wells; it also increases the production temperature at the abstraction, the service life-spans, and total heat production rate.
Peleg Haruzi, Regina Katsman, Matthias Halisch, Nicolas Waldmann, and Baruch Spiro
Solid Earth, 12, 665–689,Short summary
In this paper, we evaluate a multi-methodological approach for the comprehensive characterization of reservoir sandstones. The approach enables identification of links between rock permeability and textural and topological rock descriptors quantified at microscale. It is applied to study samples from three sandstone layers of Lower Cretaceous age in northern Israel, which differ in features observed at the outcrop, hand specimen and micro-CT scales, and leads to their accurate characterization.
Clemens Messerschmid, Martin Sauter, and Jens Lange
Hydrol. Earth Syst. Sci., 24, 887–917,Short summary
Recharge assessment in the shared transboundary Western Aquifer Basin is highly relevant, scientifically as well as hydropolitically (in Israeli–Palestinian water negotiations). Our unique combination of field-measured soil characteristics and soil moisture time series with soil moisture saturation excess modelling provides a new basis for the spatial differentiation of formation-specific groundwater recharge (at any scale), applicable also in other previously ungauged basins around the world.
Peleg Haruzi, Regina Katsman, Baruch Spiro, Matthias Halisch, and Nicolas Waldmann
Solid Earth Discuss.,
Revised manuscript not acceptedShort summary
We studied petrophysical characteristics of three consecutive sandstone layers of the Lower Cretaceous Hatira Formation from Israel. Evaluated micro- and macro-scale petrophysical properties predetermined the permeability of the layers, measured in turn in the lab and upscaled from pore-scale velocities. Two scales of porosity variations were found: at 300 μm scale due to pores size variability, and at 2 mm scale due to high and low porosity occlusions, suggested to control the permeability.
Zeyu Zhang, Sabine Kruschwitz, Andreas Weller, and Matthias Halisch
Solid Earth, 9, 1225–1238,Short summary
We investigate the pore space of rock samples with respect to different petrophysical parameters using various methods, which provide data on pore size distributions. The resulting cumulative distributions of pore volume as a function of pore size are compared. Considering that the methods differ with regard to their limits of resolution, a multiple-length-scale characterization of the pore space geometry is proposed that is based on a combination of the results from all of these methods.
Alexandru Tatomir, Christopher McDermott, Jacob Bensabat, Holger Class, Katriona Edlmann, Reza Taherdangkoo, and Martin Sauter
Adv. Geosci., 45, 185–192,Short summary
In the context of hydraulic fracturing we constructed a comprehensive FEP database and applied it to six key focused scenarios defined under the scope of FracRisk project (www.fracrisk.eu). The FEP database is ranked to show the relevance of each item in the FEP list per scenario. The main goal of the work is to illustrate the FEP database applicability to develop a conceptual model for regional-scale stray gas migration.
Annette Kaufhold, Matthias Halisch, Gerhard Zacher, and Stephan Kaufhold
Solid Earth, 7, 1171–1183,Short summary
The OPA material has been intensively studied by a variety of multiple scale and non-destructive 3-D X-ray CT investigations, following a consequent top-down approach to identify specific regions of interest. According to the mechanical experiment, it has been observed that the shear failure is located in a clay-rich area. Within the intersecting area of the two main fractures, a so called mylonitic zone with a particle reduction was observed on the open shear failure using CT and SEM techniques.
Matthias Halisch, Holger Steeb, Steven Henkel, and Charlotte M. Krawczyk
Solid Earth, 7, 1141–1143,
Britta Schoesser, Atefeh Ghorbanpour, Matthias Halisch, and Markus Thewes
Solid Earth Discuss.,
Revised manuscript not acceptedShort summary
In summary, the µ-CT technique delivers a valuable contribution for the research on the interaction of bentonite suspensions penetration the pore space of non-cohesive media. This study shows the missing visual evidence concerning the theoretical interaction models of the bentonite suspension in the pore space on microscale. The Imaging results have been cross-validated with laboratory experiments and are in good agreement with each other.
Mayka Schmitt, Matthias Halisch, Cornelia Müller, and Celso Peres Fernandes
Solid Earth, 7, 285–300,Short summary
In this paper we show how the shapes of irregular rock particles (pores) can be classified and quantified based on binary 3-D images. The methodology requires the measurement of basic 3-D particle descriptors and a shape classification that involves the similarity of artificial objects, which is based on main pore network detachments and 3-D sample sizes. The results were validated for three sandstones (S1, S2, and S3) from distinct reservoirs.
F. Ries, J. Lange, S. Schmidt, H. Puhlmann, and M. Sauter
Hydrol. Earth Syst. Sci., 19, 1439–1456,Short summary
Soil moisture was observed along a strong semi-arid climatic gradient in a Mediterranean karst area. Soil moisture data and soil hydraulic modelling with Hydrus-1D revealed a strong dependency of percolation fluxes with rainfall amounts and intensity during heavy rainfall events. Spatial and temporal extrapolation of the model illustrated the high variability of seasonal percolation amounts among single years and showed strong correlations between soil depth and potential groundwater recharge.
Related subject area
GeophysicsFormation and geophysical character of transitional crust at the passive continental margin around Walvis Ridge, NamibiaSeismic amplitude response to internal heterogeneity of mass-transport depositsInvestigation of the effects of surrounding media on the distributed acoustic sensing of a helically wound fibre-optic cable with application to the New Afton deposit, British ColumbiaUtilisation of probabilistic magnetotelluric modelling to constrain magnetic data inversion: proof-of-concept and field applicationGeophysical analysis of an area affected by subsurface dissolution – case study of an inland salt marsh in northern Thuringia, GermanyComparison of straight-ray and curved-ray surface wave tomography approaches in near-surface studiesAn efficient probabilistic workflow for estimating induced earthquake parameters in 3D heterogeneous media3D deep geothermal reservoir imaging with wireline distributed acoustic sensing in two boreholes3D high-resolution seismic imaging of the iron oxide deposits in Ludvika (Sweden) using full-waveform inversion and reverse time migrationThree-dimensional reflection seismic imaging of the iron oxide deposits in the Ludvika mining area, Sweden, using Fresnel volume migrationDrone-based magnetic and multispectral surveys to develop a 3D model for mineral exploration at Qullissat, Disko Island, GreenlandAmbient seismic noise analysis of LARGE-N data for mineral exploration in the Central Erzgebirge, GermanySurface-wave tomography for mineral exploration: a successful combination of passive and active data (Siilinjärvi phosphorus mine, Finland)Reflection tomography by depth warping: a case study across the Java trenchDynamic motion monitoring of a 3.6 km long steel rod in a borehole during cold-water injection with distributed fiber-optic sensingImpact of Timanian thrust systems on the late Neoproterozoic–Phanerozoic tectonic evolution of the Barents Sea and SvalbardForearc density structure of the overriding plate in the northern area of the giant 1960 Valdivia earthquakeImaging crustal structures through a passive seismic imaging approach in a mining area in Saxony, GermanyInvestigating the effects of intersection flow localization in equivalent-continuum-based upscaling of flow in discrete fracture networksCross-diffusion waves resulting from multiscale, multiphysics instabilities: application to earthquakesReverse time migration (RTM) imaging of iron oxide deposits in the Ludvika mining area, SwedenNear-surface structure of the Sodankylä area in Finland, obtained by passive seismic interferometryEvolution of the Iberian Massif as deduced from its crustal thickness and geometry of a mid-crustal (Conrad) discontinuityFour-dimensional tracer flow reconstruction in fractured rock through borehole ground-penetrating radar (GPR) monitoringMoho topography beneath the European Eastern Alps by global-phase seismic interferometrySeismic imaging across fault systems in the Abitibi greenstone belt – an analysis of pre- and post-stack migration approaches in the Chibougamau area, Quebec, CanadaEarly Cenozoic Eurekan strain partitioning and decoupling in central Spitsbergen, SvalbardOn the comparison of strain measurements from fibre optics with a dense seismometer array at Etna volcano (Italy)Cross-diffusion waves resulting from multiscale, multi-physics instabilities: theoryMulti-scale analysis and modelling of aeromagnetic data over the Bétaré-Oya area in eastern Cameroon, for structural evidence investigationsThe impact of seismic interpretation methods on the analysis of faults: a case study from the Snøhvit field, Barents SeaWireline distributed acoustic sensing allows 4.2 km deep vertical seismic profiling of the Rotliegend 150 °C geothermal reservoir in the North German BasinIntegrated land and water-borne geophysical surveys shed light on the sudden drying of large karst lakes in southern MexicoSparse 3D reflection seismic survey for deep-targeting iron oxide deposits and their host rocks, Ludvika Mines, SwedenFault sealing and caprock integrity for CO2 storage: an in situ injection experimentWhat can seismic noise tell us about the Alpine reactivation of the Iberian Massif? An example in the Iberian Central SystemIn situ hydromechanical responses during well drilling recorded by fiber-optic distributed strain sensingCoherent diffraction imaging for enhanced fault and fracture network characterizationOn the morphology and amplitude of 2D and 3D thermal anomalies induced by buoyancy-driven flow within and around fault zonesCharacterizing a decametre-scale granitic reservoir using ground-penetrating radar and seismic methodsMantle flow below the central and greater Alpine region: insights from SKS anisotropy analysis at AlpArray and permanent stationsUpper Jurassic carbonate buildups in the Miechów Trough, southern Poland – insights from seismic data interpretationsSeismic evidence for failed rifting in the Ligurian Basin, Western Alpine domainAzimuth-, angle- and frequency-dependent seismic velocities of cracked rocks due to squirt flowCharacteristics of a fracture network surrounding a hydrothermally altered shear zone from geophysical borehole logsBayesian full-waveform inversion of tube waves to estimate fracture aperture and complianceCorrelation of core and downhole seismic velocities in high-pressure metamorphic rocks: a case study for the COSC-1 borehole, SwedenNew regional stratigraphic insights from a 3D geological model of the Nasia sub-basin, Ghana, developed for hydrogeological purposes and based on reprocessed B-field data originally collected for mineral explorationThe relative contributions of scattering and viscoelasticity to the attenuation of S waves in Earth's mantleCharacterisation of subglacial water using a constrained transdimensional Bayesian transient electromagnetic inversion
Gesa Franz, Marion Jegen, Max Moorkamp, Christian Berndt, and Wolfgang Rabbel
Solid Earth, 14, 237–259,Short summary
Our study focuses on the correlation of two geophysical parameters (electrical resistivity and density) with geological units. We use this computer-aided correlation to improve interpretation of the Earth’s formation history along the Namibian coast and the associated formation of the South Atlantic Ocean. It helps to distinguish different types of sediment cover and varieties of oceanic crust, as well as to identify typical features associated with the breakup of continents.
Jonathan Ford, Angelo Camerlenghi, Francesca Zolezzi, and Marilena Calarco
Solid Earth, 14, 137–151,Short summary
Submarine landslides commonly appear as low-amplitude zones in seismic data. Previous studies have attributed this to a lack of preserved internal structure. We use seismic modelling to show that an amplitude reduction can be generated even when there is still metre-scale internal structure, by simply deforming the bedding. This has implications for interpreting failure type, for core-seismic correlation and for discriminating landslides from other "transparent" phenomena such as free gas.
Sepidehalsadat Hendi, Mostafa Gorjian, Gilles Bellefleur, Christopher D. Hawkes, and Don White
Solid Earth, 14, 89–99,Short summary
In this study, the modelling results are used to help understand the performance of a helically wound fibre (HWC) from a field study at the New Afton mine, British Columbia. We introduce the numerical 3D model to model strain values in HWC to design more effective HWC system. The DAS dataset at New Afton, interpreted in the context of our modelling, serves as a practical demonstration of the extreme effects of surrounding media and coupling on HWC data quality.
Jérémie Giraud, Hoël Seillé, Mark D. Lindsay, Gerhard Visser, Vitaliy Ogarko, and Mark W. Jessell
Solid Earth, 14, 43–68,Short summary
We propose and apply a workflow to combine the modelling and interpretation of magnetic anomalies and resistivity anomalies to better image the basement. We test the method on a synthetic case study and apply it to real world data from the Cloncurry area (Queensland, Australia), which is prospective for economic minerals. Results suggest a new interpretation of the composition and structure towards to east of the profile that we modelled.
Sonja H. Wadas, Hermann Buness, Raphael Rochlitz, Peter Skiba, Thomas Günther, Michael Grinat, David C. Tanner, Ulrich Polom, Gerald Gabriel, and Charlotte M. Krawczyk
Solid Earth, 13, 1673–1696,Short summary
The dissolution of rocks poses a severe hazard because it can cause subsidence and sinkhole formation. Based on results from our study area in Thuringia, Germany, using P- and SH-wave reflection seismics, electrical resistivity and electromagnetic methods, and gravimetry, we develop a geophysical investigation workflow. This workflow enables identifying the initial triggers of subsurface dissolution and its control factors, such as structural constraints, fluid pathways, and mass movement.
Mohammadkarim Karimpour, Evert Slob, and Laura Valentina Socco
Solid Earth, 13, 1569–1583,Short summary
Near-surface characterisation is of great importance. Surface wave tomography (SWT) is a powerful tool to model the subsurface. In this work we compare straight-ray and curved-ray SWT at near-surface scale. We apply both approaches to four datasets and compare the results in terms of the quality of the final model and the computational cost. We show that in the case of high data coverage, straight-ray SWT can produce similar results to curved-ray SWT but with less computational cost.
La Ode Marzujriban Masfara, Thomas Cullison, and Cornelis Weemstra
Solid Earth, 13, 1309–1325,Short summary
Induced earthquakes are natural phenomena in which the events are associated with human activities. Although the magnitudes of these events are mostly smaller than tectonic events, in some cases, the magnitudes can be high enough to damage buildings near the event's location. To study these (high-magnitude) induced events, we developed a workflow in which the recorded data from an earthquake are used to describe the source and monitor the area for other (potentially high-magnitude) earthquakes.
Evgeniia Martuganova, Manfred Stiller, Ben Norden, Jan Henninges, and Charlotte M. Krawczyk
Solid Earth, 13, 1291–1307,Short summary
We demonstrate the applicability of vertical seismic profiling (VSP) acquired using wireline distributed acoustic sensing (DAS) technology for deep geothermal reservoir imaging and characterization. Borehole DAS data provide critical input for seismic interpretation and help assess small-scale geological structures. This case study can be used as a basis for detailed structural exploration of geothermal reservoirs and provide insightful information for geothermal exploration projects.
Brij Singh, Michał Malinowski, Andrzej Górszczyk, Alireza Malehmir, Stefan Buske, Łukasz Sito, and Paul Marsden
Solid Earth, 13, 1065–1085,Short summary
Fast depletion of shallower deposits is pushing the mining industry to look for cutting-edge technologies for deep mineral targeting. We demonstrated a joint workflow including two state-of-the-art technologies: full-waveform inversion and reverse time migration. We produced Earth images with significant details which can help with better estimation of areas with high mineralisation, better mine planning and safety measures.
Felix Hloušek, Michal Malinowski, Lena Bräunig, Stefan Buske, Alireza Malehmir, Magdalena Markovic, Lukasz Sito, Paul Marsden, and Emma Bäckström
Solid Earth, 13, 917–934,Short summary
Methods for mineral exploration play an important role within the EU. Exploration must be environmentally friendly, cost effective, and feasible in populated areas. Seismic methods have the potential to deliver detailed images of mineral deposits but suffer from these demands. We show the results for a sparse 3D seismic dataset acquired in Sweden. The 3D depth image allows us to track the known mineralizations beyond the known extent and gives new insights into the geometry of the deposit.
Robert Jackisch, Björn H. Heincke, Robert Zimmermann, Erik V. Sørensen, Markku Pirttijärvi, Moritz Kirsch, Heikki Salmirinne, Stefanie Lode, Urpo Kuronen, and Richard Gloaguen
Solid Earth, 13, 793–825,Short summary
We integrate UAS-based magnetic and multispectral data with legacy exploration data of a Ni–Cu–PGE prospect on Disko Island, West Greenland. The basalt unit has a complex magnetization, and we use a constrained 3D magnetic vector inversion to estimate magnetic properties and spatial dimensions of the target unit. Our 3D modelling reveals a horizontal sheet and a strong remanent magnetization component. We highlight the advantage of UAS use in rugged and remote terrain.
Trond Ryberg, Moritz Kirsch, Christian Haberland, Raimon Tolosana-Delgado, Andrea Viezzoli, and Richard Gloaguen
Solid Earth, 13, 519–533,Short summary
Novel methods for mineral exploration play an important role in future resource exploration. The methods have to be environmentally friendly, socially accepted and cost effective by integrating multidisciplinary methodologies. We investigate the potential of passive, ambient noise tomography combined with 3D airborne electromagnetics for mineral exploration in Geyer, Germany. We show that the combination of the two geophysical data sets has promising potential for future mineral exploration.
Chiara Colombero, Myrto Papadopoulou, Tuomas Kauti, Pietari Skyttä, Emilia Koivisto, Mikko Savolainen, and Laura Valentina Socco
Solid Earth, 13, 417–429,Short summary
Passive-source surface waves may be exploited in mineral exploration for deeper investigations. We propose a semi-automatic workflow for their processing. The geological interpretation of the results obtained at a mineral site (Siilinjärvi phosphorus mine) shows large potentialities and effectiveness of the proposed workflow.
Yueyang Xia, Dirk Klaeschen, Heidrun Kopp, and Michael Schnabel
Solid Earth, 13, 367–392,Short summary
Geological interpretations based on seismic depth images depend on an accurate subsurface velocity model. Reflection tomography is one method to iteratively update a velocity model based on depth error analysis. We used a warping method to estimate closely spaced data-driven depth error displacement fields. The application to a multichannel seismic line across the Sunda subduction zone illustrates the approach which leads to more accurate images of complex geological structures.
Martin Peter Lipus, Felix Schölderle, Thomas Reinsch, Christopher Wollin, Charlotte Krawczyk, Daniela Pfrang, and Kai Zosseder
Solid Earth, 13, 161–176,Short summary
A fiber-optic cable was installed along a freely suspended rod in a deep geothermal well in Munich, Germany. A cold-water injection test was monitored with fiber-optic distributed acoustic and temperature sensing. During injection, we observe vibrational events in the lower part of the well. On the basis of a mechanical model, we conclude that the vibrational events are caused by thermal contraction of the rod. The results illustrate potential artifacts when analyzing downhole acoustic data.
Jean-Baptiste P. Koehl, Craig Magee, and Ingrid M. Anell
Solid Earth, 13, 85–115,Short summary
The present study shows evidence of fault systems (large cracks in the Earth's crust) hundreds to thousands of kilometers long and several kilometers thick extending from northwestern Russia to the northern Norwegian Barents Sea and the Svalbard Archipelago using seismic, magnetic, and gravimetric data. The study suggests that the crust in Svalbard and the Barents Sea was already attached to Norway and Russia at ca. 650–550 Ma, thus challenging existing models.
Andrei Maksymowicz, Daniela Montecinos-Cuadros, Daniel Díaz, María José Segovia, and Tomás Reyes
Solid Earth, 13, 117–136,Short summary
This work analyses the density structure of the continental forearc in the northern segment of the 1960 Mw 9.6 Valdivia earthquake. Results show a segmentation of the continental wedge along and perpendicular to the margin. The extension of the less rigid basement units conforming the marine wedge and Coastal Cordillera domain could modify the process of stress loading during the interseismic periods. This analysis highlights the role of the overriding plate on the seismotectonic process.
Hossein Hassani, Felix Hloušek, Stefan Buske, and Olaf Wallner
Solid Earth, 12, 2703–2715,Short summary
Passive seismic imaging methods use natural earthquakes as seismic sources, while in active seismic imaging methods, artificial sources (e.g. explosives) are used to generate seismic waves. We imaged some structures related to a major fault plane through a passive seismic imaging approach using microearthquakes with magnitudes smaller than 0.9 (Mw). These structures have not been illuminated by a previously conducted 3D active seismic survey due to their large dip angles.
Maximilian O. Kottwitz, Anton A. Popov, Steffen Abe, and Boris J. P. Kaus
Solid Earth, 12, 2235–2254,Short summary
Upscaling fluid flow in fractured reservoirs is an important practice in subsurface resource utilization. In this study, we first conduct numerical simulations of direct fluid flow at locations where fractures intersect to analyze the arising hydraulic complexities. Next, we develop a model that integrates these effects into larger-scale continuum models of fracture networks to investigate their impact on the upscaling. For intensively fractured systems, these effects become important.
Klaus Regenauer-Lieb, Manman Hu, Christoph Schrank, Xiao Chen, Santiago Peña Clavijo, Ulrich Kelka, Ali Karrech, Oliver Gaede, Tomasz Blach, Hamid Roshan, Antoine B. Jacquey, Piotr Szymczak, and Qingpei Sun
Solid Earth, 12, 1829–1849,Short summary
This paper presents a trans-disciplinary approach bridging the gap between observations of instabilities from the molecular scale to the very large scale. We show that all scales communicate via propagation of volumetric deformation waves. Similar phenomena are encountered in quantum optics where wave collisions can release sporadic bursts of light. Ocean waves show a similar phenomenon of rogue waves that seem to come from nowhere. This mechanism is proposed to be the trigger for earthquakes.
Yinshuai Ding and Alireza Malehmir
Solid Earth, 12, 1707–1718,Short summary
In this article, we investigate the potential of reverse time migration (RTM) for deep targeting iron oxide deposits and the possible AVO effect that is potentially seen in the common image gathers from this migration algorithm. The results are promising and help to delineate the deposits and host rock structures using a 2D dataset from the Ludvika mines of central Sweden.
Nikita Afonin, Elena Kozlovskaya, Suvi Heinonen, and Stefan Buske
Solid Earth, 12, 1563–1579,Short summary
In our study, we show the results of a passive seismic interferometry application for mapping the uppermost crust in the area of active mineral exploration in northern Finland. The obtained velocity models agree well with geological data and complement the results of reflection seismic data interpretation.
Puy Ayarza, José Ramón Martínez Catalán, Ana Martínez García, Juan Alcalde, Juvenal Andrés, José Fernando Simancas, Immaculada Palomeras, David Martí, Irene DeFelipe, Chris Juhlin, and Ramón Carbonell
Solid Earth, 12, 1515–1547,Short summary
Vertical incidence seismic profiling on the Iberian Massif images a mid-crustal-scale discontinuity at the top of the reflective lower crust. This feature shows that upper- and lower-crustal reflections merge into it, suggesting that it has often behaved as a detachment. The orogen-scale extension of this discontinuity, present in Gondwanan and Avalonian affinity terranes into the Iberian Massif, demonstrates its relevance, leading us to interpret it as the Conrad discontinuity.
Peter-Lasse Giertzuch, Joseph Doetsch, Alexis Shakas, Mohammadreza Jalali, Bernard Brixel, and Hansruedi Maurer
Solid Earth, 12, 1497–1513,Short summary
Two time-lapse borehole ground penetrating radar (GPR) surveys were conducted during saline tracer experiments in weakly fractured crystalline rock with sub-millimeter fractures apertures, targeting electrical conductivity changes. The combination of time-lapse reflection and transmission GPR surveys from different boreholes allowed monitoring the tracer flow and reconstructing the flow path and its temporal evolution in 3D and provided a realistic visualization of the hydrological processes.
Irene Bianchi, Elmer Ruigrok, Anne Obermann, and Edi Kissling
Solid Earth, 12, 1185–1196,Short summary
The European Alps formed during collision between the European and Adriatic plates and are one of the most studied orogens for understanding the dynamics of mountain building. In the Eastern Alps, the contact between the colliding plates is still a matter of debate. We have used the records from distant earthquakes to highlight the geometries of the crust–mantle boundary in the Eastern Alpine area; our results suggest a complex and faulted internal crustal structure beneath the higher crests.
Saeid Cheraghi, Alireza Malehmir, Mostafa Naghizadeh, David Snyder, Lucie Mathieu, and Pierre Bedeaux
Solid Earth, 12, 1143–1164,Short summary
High-resolution seismic profiles in 2D are acquired in the north and south of the Chibougamau area, Quebec, Canada located in the northeast of the Abitibi Greenstone belt. The area mostly includes volcanic rocks, and both profiles cross over several fault zones. The seismic method is acquired to image the subsurface down to depth of 12 km. The main aim of this study is to image major fault zones and the geological formations connected to those faults to investigate metal endowment in the area.
Jean-Baptiste P. Koehl
Solid Earth, 12, 1025–1049,Short summary
By using seismic data and fieldwork, this contribution shows that soft, coal-rich sedimentary rocks absorbed most of early Cenozoic, Eurekan, contractional deformation in central Spitsbergen, thus suggesting that no contractional deformation event is needed in the Late Devonian to explain the deformation differences among late Paleozoic sedimentary rocks. It also shows that the Billefjorden Fault Zone, a major crack in the Earth's crust in Svalbard, is probably segmented.
Gilda Currenti, Philippe Jousset, Rosalba Napoli, Charlotte Krawczyk, and Michael Weber
Solid Earth, 12, 993–1003,Short summary
We investigate the capability of distributed acoustic sensing (DAS) to record dynamic strain changes related to Etna volcano activity in 2019. To validate the DAS measurements, we compute strain estimates from seismic signals recorded by a dense broadband array. A general good agreement is found between array-derived strain and DAS measurements along the fibre optic cable. Localised short wavelength discrepancies highlight small-scale structural heterogeneities in the investigated area.
Klaus Regenauer-Lieb, Manman Hu, Christoph Schrank, Xiao Chen, Santiago Peña Clavijo, Ulrich Kelka, Ali Karrech, Oliver Gaede, Tomasz Blach, Hamid Roshan, and Antoine B. Jacquey
Solid Earth, 12, 869–883,Short summary
In this paper we expand on a recent discovery of slow cross-diffusion hydromechanical waves cast into a new concise reaction–diffusion equation for THMC coupling. If waves are excited through the THMC reaction terms unbounded reactions can be captured by inclusion of statistical information from the lower scale through nonlocal reaction–diffusion equations. These cross-diffusion coefficients regularize extreme earthquake-like events (rogue waves) through a new form of quasi-soliton wave.
Christian Emile Nyaban, Théophile Ndougsa-Mbarga, Marcelin Bikoro-Bi-Alou, Stella Amina Manekeng Tadjouteu, and Stephane Patrick Assembe
Solid Earth, 12, 785–800,Short summary
A multi-scale analysis of aeromagnetic data combining tilt derivative, Euler deconvolution, upward continuation, and 2.75D modelling was applied over Cameroon between the latitudes 5°30'–6° N and the longitudes 13°30'–14°45' E. Major families of faults oriented ENE–WSW, E–W, NW–SE, and N–S with a NE–SW prevalence were mapped. Depths of interpreted faults range from 1000 to 3400 m, mylonitic veins were identified, and 2.75D modelling revealed fault depths greater than 1200 m.
Jennifer E. Cunningham, Nestor Cardozo, Chris Townsend, and Richard H. T. Callow
Solid Earth, 12, 741–764,Short summary
This work investigates the impact of commonly used seismic interpretation methods on the analysis of faults. Fault analysis refers to fault length, displacement, and the impact these factors have on geological modelling and hydrocarbon volume calculation workflows. This research was conducted to give geoscientists a better understanding of the importance of interpretation methods and the impact of unsuitable methology on geological analyses.
Jan Henninges, Evgeniia Martuganova, Manfred Stiller, Ben Norden, and Charlotte M. Krawczyk
Solid Earth, 12, 521–537,Short summary
We performed a seismic survey in two 4.3 km deep geothermal research wells using the novel method of distributed acoustic sensing and wireline cables. The characteristics of the acquired data, methods for data processing and quality improvement, and interpretations on the geometry and structure of the sedimentary and volcanic reservoir rocks are presented. The method enables measurements at high temperatures and reduced cost compared to conventional sensors.
Matthias Bücker, Adrián Flores Orozco, Jakob Gallistl, Matthias Steiner, Lukas Aigner, Johannes Hoppenbrock, Ruth Glebe, Wendy Morales Barrera, Carlos Pita de la Paz, César Emilio García García, José Alberto Razo Pérez, Johannes Buckel, Andreas Hördt, Antje Schwalb, and Liseth Pérez
Solid Earth, 12, 439–461,Short summary
We use seismic, electromagnetic, and geoelectrical methods to assess sediment thickness and lake-bottom geology of two karst lakes. An unexpected drainage event provided us with the unusual opportunity to compare water-borne measurements with measurements carried out on the dry lake floor. The resulting data set does not only provide insight into the specific lake-bottom geology of the studied lakes but also evidences the potential and limitations of the employed field methods.
Alireza Malehmir, Magdalena Markovic, Paul Marsden, Alba Gil, Stefan Buske, Lukasz Sito, Emma Bäckström, Martiya Sadeghi, and Stefan Luth
Solid Earth, 12, 483–502,Short summary
A smooth transition toward decarbonization demands access to more minerals of critical importance. Europe has a good geology for many of these mineral deposits, but at a depth requiring sensitive, environmentally friendly, and cost-effective methods for their exploration. In this context, we present a sparse 3D seismic dataset that allowed identification of potential iron oxide resources at depth and helped to characterise key geological structures and a historical tailing in central Sweden.
Alba Zappone, Antonio Pio Rinaldi, Melchior Grab, Quinn C. Wenning, Clément Roques, Claudio Madonna, Anne C. Obermann, Stefano M. Bernasconi, Matthias S. Brennwald, Rolf Kipfer, Florian Soom, Paul Cook, Yves Guglielmi, Christophe Nussbaum, Domenico Giardini, Marco Mazzotti, and Stefan Wiemer
Solid Earth, 12, 319–343,Short summary
The success of the geological storage of carbon dioxide is linked to the availability at depth of a capable reservoir and an impermeable caprock. The sealing capacity of the caprock is a key parameter for long-term CO2 containment. Faults crosscutting the caprock might represent preferential pathways for CO2 to escape. A decameter-scale experiment on injection in a fault, monitored by an integrated network of multiparamerter sensors, sheds light on the mobility of fluids within the fault.
Juvenal Andrés, Puy Ayarza, Martin Schimmel, Imma Palomeras, Mario Ruiz, and Ramon Carbonell
Solid Earth, 11, 2499–2513,
Yi Zhang, Xinglin Lei, Tsutomu Hashimoto, and Ziqiu Xue
Solid Earth, 11, 2487–2497,Short summary
Spatially continuous strain responses in two monitoring wells induced by a well-drilling process were monitored using high-resolution fiber-optic distributed strain sensing (DSS). The modeling results suggest that the strain polarities and magnitudes along the wellbores may be indicative of the layered-permeability structure or heterogeneous formation damage. The performance and value of DSS as a novel hydrogeophysical tool for in situ subsurface monitoring are emphasized.
Benjamin Schwarz and Charlotte M. Krawczyk
Solid Earth, 11, 1891–1907,Short summary
Intricate fault and fracture networks cut through the upper crust, and their detailed delineation and characterization play an important role in the Earth sciences. While conventional geophysical sounding techniques only provide indirect means of detection, we present scale-spanning field data examples, in which coherent diffraction imaging – a framework inspired by optics and visual perception – enables the direct imaging of these crustal features at an unprecedented spatial resolution.
Laurent Guillou-Frottier, Hugo Duwiquet, Gaëtan Launay, Audrey Taillefer, Vincent Roche, and Gaétan Link
Solid Earth, 11, 1571–1595,Short summary
In the first kilometers of the subsurface, temperature anomalies due to heat conduction rarely exceed 20–30°C. However, when deep hot fluids in the shallow crust flow upwards, for example through permeable fault zones, hydrothermal convection can form high-temperature geothermal reservoirs. Numerical modeling of hydrothermal convection shows that vertical fault zones may host funnel-shaped, kilometer-sized geothermal reservoirs whose exploitation would not need drilling at depths below 2–3 km.
Joseph Doetsch, Hannes Krietsch, Cedric Schmelzbach, Mohammadreza Jalali, Valentin Gischig, Linus Villiger, Florian Amann, and Hansruedi Maurer
Solid Earth, 11, 1441–1455,
Laura Petrescu, Silvia Pondrelli, Simone Salimbeni, Manuele Faccenda, and the AlpArray Working Group
Solid Earth, 11, 1275–1290,Short summary
To place constraints on the mantle deformation beneath the Central Alps and the greater Alpine region, we analysed the appropriate seismic signal recorded by more than 100 stations, belonging to AlpArray and to other permanent networks. We took a picture of the imprinting that Alpine orogen history and related subductions left at depth, with a mainly orogen-parallel mantle deformation from Western Alps to Eastern Alps, but also N to S from the Po Plain to the Rhine Graben.
Łukasz Słonka and Piotr Krzywiec
Solid Earth, 11, 1097–1119,Short summary
This paper shows the results of seismic interpretations that document the presence of large Upper Jurassic carbonate buildups in the Miechów Trough (S Poland). Our work fills the gap in recognition of the Upper Jurassic carbonate depositional system of southern Poland. The results also provide an excellent generic reference point, showing how and to what extent seismic data can be used for studies of carbonate depositional systems, in particular for the identification of the carbonate buildups.
Anke Dannowski, Heidrun Kopp, Ingo Grevemeyer, Dietrich Lange, Martin Thorwart, Jörg Bialas, and Martin Wollatz-Vogt
Solid Earth, 11, 873–887,Short summary
The Ligurian Sea opened ~30–15 Ma during the SE migration of the Calabrian subduction zone. Seismic travel time tomography reveals the absence of oceanic crust, documenting that the extension of continental lithosphere stopped before seafloor spreading initiated. The extension led to extreme crustal thinning and possibly exhumed mantle accompanied by syn-rift sedimentation. Our new interpretation of the crust's nature is important for plate reconstruction modelling related to the Alpine orogen.
Yury Alkhimenkov, Eva Caspari, Simon Lissa, and Beatriz Quintal
Solid Earth, 11, 855–871,Short summary
We perform a three-dimensional numerical study of the fluid–solid deformation at the pore scale. We show that seismic wave velocities exhibit strong azimuth-, angle- and frequency-dependent behavior due to squirt flow between interconnected cracks. We conclude that the overall anisotropy mainly increases due to squirt flow, but in some specific planes it can locally decrease as well as increase, depending on the material properties.
Eva Caspari, Andrew Greenwood, Ludovic Baron, Daniel Egli, Enea Toschini, Kaiyan Hu, and Klaus Holliger
Solid Earth, 11, 829–854,Short summary
A shallow borehole was drilled to explore the petrophysical and hydraulic characteristics of a hydrothermally active fault in the crystalline Aar massif of the Alps. A key objective of studying surficial features of this kind is to establish analogies with natural and deep-seated engineered hydrothermal systems. A wide range of geophysical borehole logs was acquired, which revealed a complex fracture network in the damage zone of the fault and a related compartmentalized hydraulic behavior.
Jürg Hunziker, Andrew Greenwood, Shohei Minato, Nicolás Daniel Barbosa, Eva Caspari, and Klaus Holliger
Solid Earth, 11, 657–668,Short summary
The characterization of fractures is crucial for a wide range of pertinent applications, such as geothermal energy production, hydrocarbon exploration, CO2 sequestration, and nuclear waste disposal. We estimate fracture parameters based on waves that travel along boreholes (tube waves) using a stochastic optimization approach.
Felix Kästner, Simona Pierdominici, Judith Elger, Alba Zappone, Jochem Kück, and Christian Berndt
Solid Earth, 11, 607–626,Short summary
Knowledge about physical properties at depth is crucial to image and understand structures linked with orogenic processes. We examined seismic velocities from core and downhole data from the COSC-1 borehole, Sweden, and calibrated our results with laboratory measurements on core samples. Despite a strong mismatch between the core and downhole velocities due to microcracks, mafic units are resolved at all scales, while at sample scale, strong seismic anisotropy correlates with the rock foliation.
Elikplim Abla Dzikunoo, Giulio Vignoli, Flemming Jørgensen, Sandow Mark Yidana, and Bruce Banoeng-Yakubo
Solid Earth, 11, 349–361,Short summary
Time-domain electromagnetic (TEM) geophysics data originally collected for mining purposes were reprocessed and inverted. The new inversions were used to construct a 3D model of the subsurface geology to facilitate hydrogeological investigations within a DANIDA-funded project. Improved resolutions from the TEM enabled the identification of possible paleovalleys of glacial origin, suggesting the need for a reevaluation of the current lithostratigraphy of the Voltaian sedimentary basin.
Susini deSilva and Vernon F. Cormier
Solid Earth, 11, 161–171,Short summary
Seismic waves attenuate with distance due to two effects: (1) removal of energy by internal friction and (2) redistribution of energy into different distances and time windows by scattering from heterogeneous Earth structure. The relative contribution of these two effects is estimated by synthesizing seismograms having varying amounts of internal friction and heterogeneities. The attenuation of observed S waveforms requires contributions from both internal friction and scattering.
Siobhan F. Killingbeck, Adam D. Booth, Philip W. Livermore, C. Richard Bates, and Landis J. West
Solid Earth, 11, 75–94,Short summary
This paper presents MuLTI-TEM, a Bayesian inversion tool for inverting TEM data with independent depth constraints to provide statistical properties and uncertainty analysis of the resistivity profile with depth. MuLTI-TEM is highly versatile, being compatible with most TEM survey designs, ground-based or airborne, along with the depth constraints being provided from any external source. Here, we present an application of MuLTI-TEM to characterise the subglacial water under a Norwegian glacier.
Ahrenholz, B., Niessner, J., Helmig, R., and Krafczyk, M.: Pore-scale determination of parameters for macroscale modeling of evaporation processes in porous media, Water Resour. Res., 47, W07543, https://doi.org/10.1029/2010WR009519, 2011.
Akhlaghi Amiri, H. A. and Hamouda, A. A.: Evaluation of level set and phase field methods in modeling two phase flow with viscosity contrast through dual-permeability porous medium, Int. J. Multiphas. Flow, 52, 22–34, 2013.
Anuchina, N. N., Kucherenko, Y. A., Neuvazhaev, V. E., Ogibina, V. N., Shibarshov, L. I., and Yakolev, V. G.: Turbulent mixing of an accelerating interface between liquids of different density, Fluid Dyn., 13, 916–920, 1978.
Arzanfundi, M. M. and Al-Khoury, R.: A compressible two-fluid multiphase model for CO2 leakage through a wellbore, Int. J. Numer. Meth. Fl., 77, 477–507, 2015.
Bear, J.: Dynamics of Fluids in Porous Media, Dover Publications, Inc., New York, Dover Edition, 1988.
Brooks, R. H. and Corey, A. T.: Hydraulic properties of porous media and their relation to drainage design, Trans. ASAE, 7, 26–28, 1964.
Brunke, O., Brockdorf, K., Drews, S., Müller, B., Donath, T., Herzen, J., and Beckmann, F.: Comparison between X-ray tube-based and synchrotron radiation-based μCT, in: Optical Engineering + Applications International Society for Optics and Photonics, 70780U–70780U, 2008.
Cahn, J. W. and Hilliard, J. E.: Free energy of a nonuniform system. I. Interfacial free energy, J. Chem. Phys., 28, 258–267, 1958.
Cengel, Y. and Cimbala, J.: Fluid Mechanics Fundamentals and Applications, 3rd Edn., McGraw-Hill Higher Education, 2013.
Chughtai, S., Rusnáková, G., Werner, H., and Lukáčová, M.: Validation of a spatially interconnected model for flow transition control, Proceedings of the European Control Conference, 1239–1244, 2009.
Edlmann, K., Niemi, A., Bensabat, J., Haszeldine, R. S., and McDermott, C. I.: Mineralogical properties of the caprock and reservoir sandstone of the Heletz field scale experimental CO2 injection site, Israel, and their initial sensitivity to CO2 injection, Int. J. Greenh. Gas Con., in press, 2016.
Espinoza, D. and Santamarina, J.: Water-CO2-mineral systems: Interfacial tension, contact angle, and diffusion – implications to CO2 geological storage, Water Resour. Res., 46, W07537, https://doi.org/10.1029/2009WR008634, 2010.
Forster, C. and Smith, M.: The transient modeling of bubble pinch-off using ALE moving mesh, Comsol Conference 2010 Boston, 2010.
Glimm, J., Grove, J., Li, X., Oh, W., and Sharp, D.: A critical analysis of Rayleigh-Taylor growth rates, J. Comput. Phys., 169, 652–677, 2001.
Granick, S., Zhu, Y., and Lee, H.: Slippery questions about complex fluids flowing past solids, Nat. Mater., 2, 221–227, 2004.
Hassanizadeh, S. M. and Gray, W. G.: General conservation equations for multi-phase systems: 3. Constitutive theory for porous media flow, Adv. Water Resour., 3, 25–40, 1980.
Hassanizadeh, S. M. and Gray, W. G.: Mechanics and thermodynamics of multiphase flow in porous media including interphase boundaries, Adv. Water Resour., 13, 169–186, 1990.
Hassanizadeh, S. M. and Gray, W. G.: Thermodynamic basis of capillary pressure in porous media, Water Resour. Res., 29, 3389–3405, 1993.
Hingerl, F. F., Yang, F., Pini, R., Xiao, X., Toney, M. F., Liu, Y. and Benson, S. M.: Characterization of heterogeneity in the Heletz sandstone from core to pore scale and quantification of its impact on multi-phase flow, International Journal of Greenhouse Gas Control, ISSN 1750-5836, https://doi.org/10.1016/j.ijggc.2015.12.037, 2016.
Jiang, H. and Zeng, X.: Microlenses: Properties, Fabrication and Liquid Lenses, CRC Press, Taylor and Francis Group, Florida, USA, 2013.
Joekar-Niasar, V., Hassanizadeh, S. M., and Leijnse, A.: Insights into the relationships among capillary pressure, saturation, interfacial area and relative permeability using pore-network modeling, Transport Porous Med., 74, 201–219, 2008.
Joekar-Niasar, V., Hassanizadeh, S. M., and Dahle, H. K.: Non-equilibrium effects in capillarity and interfacial area in two phase flow: dynamic pore-network modelling, J. Fluid Mech., 655, 38–71, 2010.
Karadimitriou, N. K. and Hassanizadeh, S. M.: A Review of Micromodels and Their Use in Two-Phase Flow Studies, Vadose Zone J., 11, https://doi.org/10.2136/vzj2011.0072, 2012.
Karadimitriou, N. K., Musterd, M., Kleingeld, P. J., Kreutzer, M. T., Hassanizadeh, S. M., and Joekar-Niasar, V.: On the fabrication of PDMS micromodels by rapid prototyping, and their use in two phase flow studies, Water Resour. Res., 49, 2056–2067, 2013.
Karadimitriou, N. K., Hassanizadeh, S .M., Joekar-Niasar, V., and Kleingeld, P. J.: Micromodel study of two-phase flow under transient conditions: Quantifying effects of specific interfacial area, Water Resour. Res., 50, 8125–8140, 2014.
Kim, J.: Phase-Field Models for Multi-Component Fluid Flows, Commun. Comput. Phys., 12, 613–661, 2012.
Kordilla, J.: Flow and transport in saturated and unsaturated fractured porous media: Development of particle-based modeling approaches, Doctoral thesis, Georg-August-University Göttingen, 2014.
Lal, R. and Shukla, M.: Principles of soil physics, Marcel Dekker Inc., New York, USA, 2004.
Laplace, P. S.: Traité de mécanique celeste, vol. 4, Supplements au Livre X, 1805.
Lenormand, R., Touboul, E., and Zarcone, C.: Numerical models and experiments on immiscible displacements in porous media, J. Fluid Mech., 189, 165–187, 1988.
Leu, L., Berg, S., Enzmann, F., Armstrong, R. T., and Kersten, M.: Fast X-ray micro-tomography of multiphase flow in berea sandstone: A sensitivity study on image processing, Transport Porous Med., 105, 451–469, 2014.
Rayleigh, L. and Strutt, J.: Investigation of the character of the equilibrium of an incompressible heavy fluid of variable density, P. Lond. Math. Soc., 14, 170–177, 1883.
Mikaelian, K.: Solution to Rayleigh-Taylor instabilities: Bubbles, spikes, and their scalings, Phys. Rev. E, 89, 053009, https://doi.org/10.1103/PhysRevE.89.053009, 2014.
Muccino, J. C., Gray, W. G., and Ferrand, L. A.: Toward an improved understanding of multiphase flow in porous media, Rev. Geophys., 36, 401–422, 1998.
Niemi, A., Bensabat, J., Shtivelman, V., Edlmann, K., Gouze, P., Luquot, L., and Liang, T.: Heletz experimental site overview, characterization and data analysis for CO2 injection and geological storage, Int. J. Greenh. Gas Con., in press, 2016.
Niessner, J. and Hassanizadeh, S. M.: A model for two-phase flow in porous media including fluid-fluid interfacial area, Water Resour. Res., 44, W08439, https://doi.org/10.1029/2007WR006721, 2008.
Niessner, J. and Hassanizadeh, S. M.: Non-equilibrium interphase heat and mass transfer during two-phase flow in porous media-Theoretical considerations and modeling, Adv. Water Resour., 32, 1756–1766, 2009.
Norde, W.: Colloids and Interfaces in Life Sciences, Marcel Dekker Inc., New York, Basel, 2003.
Otsu, N.: An automatic threshold selection method based on discriminate and least squares criteria, Denshi Tsushin Gakkai Ronbunshi, 63, 349–356, 1979.
Pillai, N. N. and Ramakrishnan, C. R.: Principles of Fluid Mechanics and Fluid Machines, 2nd Edn., Universities Press, India, 2006.
Popatenko, S.: Integral Methods in Science and Engineering: Techniques and Applications, Springer London, 2007.
Porter, M. L., Schaap, M. G. and Wildenschild, D.: Lattice-Boltzmann simulations of the capillary pressure-saturation-interfacial area relationship for porous media, Adv. Water Resour., 32, 1632–1640, 2009.
Read, K.: Experimental investigation of turbulent mixing by Rayleigh-Taylor instability, Physica D, Nonlinear Phenomena, 21, 137–148, 1984.
Reeves, P. C. and Celia, M. A.: A functional relationship between capillary pressure, saturation and interfacial area as revealed by a pore-scale network model, Water Resour. Res., 32, 2345–2358, 1996.
Rogers, D.: Laminar Flow Analysis, Cambridge University Press, 1992.
Saeedi, A.: Experimental study of multiphase flow in porous media during CO2 Geo-Sequestration processes, Springer, Berlin Heidelberg, 2012.
Schaffer, M., Maier, F.,Licha, T., and Sauter, M.: A new generation of tracers for the characterization of interfacial areas during supercritical carbon dioxide injections into deep saline aquifers: Kinetic interface-sensitive tracers (KIS tracer), Int. J. Greenh. Gas Con., 14, 200–208, 2013.
Shahriari, S., Hassan, I. G., and Kadem, L.: Modeling unsteady flow characteristics using smoothed particle hydrodynamics, Appl. Math. Model., 37, 1431–1450, 2013.
Sheppard, A. P., Sok, R. M., and Averdunk, H.: Improved Pore Network Extraction Methods. Paper submitted for the International Symposium of the Society of Core Analysts, Toronto, 21–25 August 2005.
Singhal, B. B. S., and Gupta, R. P.: Applied hydrogeology of fractured rocks, 2nd Edn., https://doi.org/10.1007/978-90-481-8799-7, 2010.
Soille, P.: Morphological Image Analysis, Principles and Applications, Springer Verlag, Berlin, 2003.
Tassaing, T., Oparin, R., Danten, Y., and Besnard, M.: Water-carbon dioxide mixtures at high temperatures and pressures as studied by infrared and raman spectroscopies, Paper submitted for 14th International Conference on the Properties of Water and Steam, Kyoto, 2004.
Tatomir, A. B., Maier, F., Schaffer, M., Licha, T., and Sauter, M.: Modelling of Kinetic Interface Sensitive Tracers for Two-Phase Systems, in: Clean Energy Systems in the Subsurface, Production, Storage and Conversion, Springer Verlag, Berlin, Heidelberg 2013.
Tatomir, A. B., Jyoti, A., Maier, F., and Sauter, M.: Modeling of Kinetic Interface Sensitive Tracers for Two Phase Immiscible Flow in Porous Media with COMSOL Multiphysics, Excerpt from the Proceedings of the 2014 COMSOL Conference in Cambridge, 2014.
Tatomir, A. B., Schaffer, M., Kissinger, A., Hommel, J., Nuske, P., Licha, T., and Sauter, M.: Novel approach for modeling kinetic interface-sensitive (KIS) tracers with respect to time-dependent interfacial area change for the optimization of supercritical carbon dioxide injection into deep saline aquifers, Int. J. Greenh. Gas Con., 33, 145–153, 2015.
Tatomir, A. B., Halisch, M., Duschl, F., Peche, A., Wiegand, B., Schaffer, M., and Sauter, M.: An integrated core-based analysis for the characterization of flow, transport and mineralogical parameters of the Heletz pilot CO2 storage site reservoir, Int. J. Greenh. Gas Con., in press, 2016.
Taylor, G.: The instability of liquid surfaces when accelerated in a direction perpendicular to their planes, Proc. R. Soc. Lond., 201, 192–196, 1950.
Tucker, M.: Sedimentary rocks in the field: A practical guide. John Wiley and Sons, Hoboken, New Jersey, 4th Edn., 2011.
Wesseling, P.: Principles of Computational Fluid Dynamics, Volume 1 of the Springer Series in Computational Mathematics, Springer Verlag, Berlin, Heidelberg, 1991.
White, J. A., Borja, R. I., and Fredrich, J. T.: Calculating the effective permeability of sandstone with multiscale lattice Boltzmann/finite element simulations, Acta Geotech., 1, 195–209, 2006.
Wildenschild, D. and Sheppard, A. P.: X-ray imaging and analysis techniques for quantifying pore-scale structure and processes in subsurface porous medium systems, Adv. Water Resour., 51, 217–246, 2013.
Wildenschild, D., Hopmans, J. W., Rivers, M. L., and Kent, A. J. R.: Quantitative analysis of flow processes in a sand using synchrotron-based X-ray microtomography, Vadose Zone J., 4, 112–126, 2005.
Woodruff, D. P.: The solid-liquid interface, CUP Archive, 1973.
Young, P. G., Beresford-West, T. B. H., Coward, S. R. L., Notarberardino, B., Walker, B., and Abdul-Aziz, A.: An efficient approach to converting three-dimensional image data into highly accurate computational models, P. T. Roy. Soc. Lon., 366, 3155–3173, 2008.
Young, T.: An essay on the cohesion of fluids, Philos. Trans. R. Soc. Lond., 95, 65–87, 1805.
Youngs, D. L.: Numerical simulation of turbulent mixing by Rayleigh-Taylor instability, Physica D, Nonlinear Phenomena, 12, 32–44, 1984.
- Full-text XML
In this case study, we compute georeservoir specific capillary pressure-saturation- interfacial area relationships by implementing a FEM-based two-phase flow model on μ-CT-based modelling domains. We propose a recommended practice for deriving a model and model setup for the successful modelling of such types of problems on micro-CT obtained geometries.
In this case study, we compute georeservoir specific capillary pressure-saturation- interfacial...