Results 81 to 90 of about 29,750 (257)

Facies and Depositional Environment Analysis of Alternate Channel Bodies in the Flank of a Sag Structure [PDF]

open access: yes, 2015
The down-dip (40o) portion turbidite Cenozoic deposits of the western sag structure in the Bohai bay been characterized for stratigraphy. Laterally tracking continuity in temporal data becomes challenging with increase in offset. In achieving this and
Alaigba, David   +3 more
core  

Assessment of soil slurry saturation and slurry infiltration in pig slurry storage ponds using electrical resistivity tomography

open access: yesVadose Zone Journal, Volume 25, Issue 3, May/June 2026.
Abstract Effective management of pig slurry in semi‐arid settings is critical to protect soils and aquifers. This study integrates multi‐profile electrical resistivity tomography (ERT) compiled into stitched 3D volumes with a calibration based on modified Archie's law derived from laboratory resistivity–moisture tests to obtain semi‐quantitative soil ...
Ximena Capa‐Camacho   +6 more
wiley   +1 more source

Report Summary [PDF]

open access: yes, 1988
This report contains the results of work completed during the ninth year of the Full Waveform Acoustic Logging Consortium in the Earth Resources Laboratory at M.LT. During the past year, we have started the evolution from purely full waveform acoustic
Cheng, C. H.
core   +5 more sources

Porosity‐Permeability Evolution of Carbonate Rocks Under Cyclic Hydrostatic Loading: Creep‐Fatigue Interaction and Implications for Hydrogen Storage

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract Underground hydrogen storage in porous formations (UHSP) subjects reservoir rocks to long‐term cyclic effective stress variations, potentially altering storage capacity and injectivity. In this study, we conduct hydrostatic loading tests on 18 Saint‐Maximin limestone (SML) samples (connected porosity 31.9%–37.2%) under various loading paths ...
Zhaochen Xu, Jean Sulem, Philipp Braun
wiley   +1 more source

Rate Dependency of Capillary Heterogeneity Trapping for CO2 Storage

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract In this paper, we experimentally quantify and analytically model rate dependent capillary heterogeneity trapping. Capillary heterogeneity trapping enhances non‐wetting fluid trapping beyond pore‐scale residual trapping through the isolation of non‐wetting phase upstream of heterogeneities in the continuum capillary pressure characteristics ...
Catrin Harris   +3 more
wiley   +1 more source

High Temperature Friction and Strength of Felsite and Basalt: Implications for Supercritical EGS at Krafla, Iceland

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 5, May 2026.
Abstract One promising potential site for extracting supercritical geothermal fluids is the Krafla volcano, Iceland, into which a borehole was drilled very close to a shallow rhyolite magma chamber at about 2 km depth. Besides the technical challenge to drill in this setting, the extreme temperature conditions of T > 900°C close to the magma body may ...
E. Rybacki   +3 more
wiley   +1 more source

Identification Analysis of Ultramafic-Mafic Intrusions in the Mamonsky Complex of the Voronezh Crystalline Massif

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2019
The paper describes the methods and results of identification analysis of the petrophysical parameters in ultramafic-mafic rocks from the Mamon intrusive complex in the Khopersky megablock of the Voronezh crystalline massif.
Муравина О.М.   +2 more
doaj   +1 more source

Coupled h-m fracture interaction using fem with zero-thickness interface elements [PDF]

open access: yes, 2017
Intensive hydraulic fracturing is a procedure employed for low permeability reservoir stimulation. This technique consists of generating a sequence of regularly spaced parallel fractures (multi-stage fracturing). The generation of a fracture involves the
Alvarellos, J.   +4 more
core  

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze   +9 more
wiley   +1 more source

Permeability and Induced Polarization of Mudstones

open access: yesWater Resources Research
Electrical measurements can be used to estimate hydraulic properties such as permeability (k) in sedimentary rocks. Previous work has focused on sandstones, siltstones, and carbonates, while investigations on mudstones have rarely been reported.
Klaudio Peshtani   +2 more
doaj   +1 more source

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