Results 81 to 90 of about 29,967 (248)

Combination of CO 2 ${\text{CO}}_{2}$ storage and geothermal energy production in porous and fractured superhot geothermal systems

open access: yesDeep Underground Science and Engineering, EarlyView.
The graphical abstract depicts the workflow for porous‐ and fractured‐media simulations, where stochastically generated discrete natural fractures are required for the fracture‐media simulation. Abstract CO 2 ${\text{CO}}_{2}$ leakage is one of the main risks and barriers to geologic carbon storage. However, under the high‐temperature and high‐pressure
Christoph Scherounigg   +3 more
wiley   +1 more source

Multi‐factor coupling effects in hydraulic fracturing of laminated shale: Experimental insights and physics‐informed neural network‐driven optimization

open access: yesDeep Underground Science and Engineering, EarlyView.
This study establishes a multi‐factor coupling framework for predicting breakdown pressure in laminated shale by integrating experimental hydraulic fracturing tests, physics‐informed neural networks (PINNs), and Sobol sensitivity analysis. It reveals how differential stress, the bedding dip angle, and the injection rate interact to influence fracture ...
Tao Wang   +6 more
wiley   +1 more source

Composition, structure and fluid regime of differentiated porphyritic intrusion Magnitogorsk iron-ore deposit (Southern Urals)

open access: yesЛитосфера, 2016
Case study of the differentiated subvolcanic porphyritic intrusion underlying Magnitogorsk skarn-magnetite deposit revealed regular relations between petrochemistry features of the rocks and composition of halogens (Cl and F) in the accessory apatite ...
T. D. Bocharnikova   +3 more
doaj  

Petrology, Magnetic susceptibility, Tectonic setting and mineralization associated with Plutonic and Volcanic Rocks, Eastern Bajestan and Taherabad, Iran

open access: yesJournal of Economic Geology, 2010
Study area is located in district of Bajestan and Ferdows cities, NE of Iran. Structurally, this area is part of Lut block. The oldest exposed rocks, to the north of intrusive rocks and in Eastern Bajestan, are meta-chert, slate, quartzite, thin-bedded ...
Maliheh Ghoorchi Rooki   +2 more
doaj   +1 more source

Geological carbon dioxide storage in the German North Sea: Static‐to‐dynamic capacity refinement for a 10 Mt/y injection scenario

open access: yesDeep Underground Science and Engineering, EarlyView.
This study assesses whether a saline aquifer in the German North Sea can sustain industrial‐scale CO2 injection at 10 Mt/year over 30 years. A 3D reservoir model is used to compare static capacity with dynamically achievable storage. The work links site‐scale injection strategy design with basin‐scale pressure response, providing a framework for ...
Firdovsi Gasanzade, Sebastian Bauer
wiley   +1 more source

Mechanism of “seesaw‐type” rock burst in coal seam mining beneath mountainous areas

open access: yesDeep Underground Science and Engineering, EarlyView.
This study reveals the mechanism of “seesaw‐type” rock bursts during coal mining beneath mountainous areas. The advancing working face induces nonuniform fracturing of the overburden. The detached mountain mass then undergoes a seesaw‐type rotational movement around a shifting pivot, driving the primary fracture through a characteristic “open‐close ...
Chao Zhou   +9 more
wiley   +1 more source

Modeling proppant transport and settling in a 3D propagating fracture

open access: yesDeep Underground Science and Engineering, EarlyView.
A versatile multiphysics tool is presented for simulating the complex processes involved in hydraulic fracturing treatments. The model couples fracture opening and propagation, variable‐density slurry flow, and proppant particle transport within the multiphysics object‐oriented simulation environment framework, based on two‐phase mixture equations and ...
Robert Egert   +2 more
wiley   +1 more source

Integration of remote sensing and geochemical analysis of chromite bodies in the Logar Ophiolitic Complex, Southeast Afghanistan

open access: yesKuwait Journal of Science
Chromite, a significant mineral for chromium, is extensively dispersed toward the southeast and east regions of Afghanistan, particularly in Logar Province.
doaj   +1 more source

THE 10TH ANNIVERSARY ALLRUSSIA SCIENTIFIC CONFERENCE «GEODYNAMIC EVOLUTION OF THE LITHOSPHERE OF THE CENTRAL ASIAN OROGENIC BELT: FROM OCEAN TO CONTINENT» (IEC SB RAS, 17–20 OCTOBER, 2012)

open access: yesГеодинамика и тектонофизика, 2015
The article provides review about the 10th anniversary of All-Russia scientific conference «Geodynamic evolution of the lithosphere of the Central Asian Orogenic Belt: from ocean to continent», which was held on 17–20 October, 2012 at the Institute of ...
Dmitry P. Gladkochub   +2 more
doaj   +1 more source

Luminescence Applications in Petrology

open access: yesElements
Luminescence is a powerful tool to infer physical and chemical conditions during mineral growth. It is very subtly linked to temperature of formation, composition and structural state, and related changes during rock evolution that often cause striking contrasts in the light emitted.
Finch, Adrian Anthony   +3 more
openaire   +3 more sources

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