Results 31 to 40 of about 747 (184)

Instability mechanism and failure characteristics of underground cavern in block system under the action of seismic waves

open access: yesDeep Underground Science and Engineering, EarlyView.
Seismic waves with tensile stress, high amplitude, and low frequency are most likely to trigger block instability and sliding. Blocks with a single sliding surface are more prone to movement than those with multiple constraints, and roof‐positioned blocks are especially vulnerable to slide.
Xiao Wang   +4 more
wiley   +1 more source

Geological Feasibility of Underground Oil Storage in Jintan Salt Mine of China

open access: yesAdvances in Materials Science and Engineering, 2017
A number of large underground oil storage spaces will be constructed in deep salt mines in China in the coming years. According to the general geological survey, the first salt cavern oil storage base of China is planned to be built in Jintan salt mine ...
Xilin Shi   +8 more
doaj   +1 more source

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

open access: yesDeep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun   +3 more
wiley   +1 more source

Biopsy of Iris and Anterior Chamber Tumours: Fine Needle, Minimally Invasive and Excision Techniques ‐ Review

open access: yesClinical &Experimental Ophthalmology, EarlyView.
ABSTRACT Several benign, inflammatory and malignant lesions can present as iris or anterior chamber masses, including iris naevi, cysts, adenomas, leiomyomas, nodules, vascular tumours, melanomas, metastases, as well as iris and pigment epithelium adenocarcinomas. Fortunately, benign iris lesions are much more common than malignant tumours and many can
Charles N. J. McGhee   +3 more
wiley   +1 more source

Enhancing Recharge in the Edwards Aquifer, Texas: Measures, Outcomes, and Lessons for Karst Aquifers

open access: yesGroundwater, EarlyView.
Abstract Managed aquifer recharge is a widely adopted method that involves storing excess water underground for future use. While managed aquifer recharge has been applied globally to different aquifer types, its use in karst aquifers is less common due to the unique hydrogeological characteristics of these systems, including high permeability ...
Neelam Thapa Magar, Robert E. Mace
wiley   +1 more source

Mechanical responses of deep salt caverns under synchronous and asynchronous operation strategies

open access: yesEnergy Geoscience
In China, gas storage in deep salt caverns faces challenges due to high in situ stresses, elevated geothermal temperatures, and the presence of interbedded salt-mudstone formations. These factors lead to heterogeneous deformation and stress concentration,
Zhenxing Ji   +6 more
doaj   +1 more source

Radical dystopia: The comic modernism of George Orwell's Nineteen Eighty‐Four

open access: yesOrbis Litterarum, EarlyView.
Abstract The present essay turns the received view of George Orwell's Nineteen Eighty‐Four on its head, arguing that Orwell's dystopian classic mobilizes the modernist techniques of T. S. Eliot's The Waste Land to lampoon the ideological fatalism of Eliot and other cultural conservatives.
Magnus Ullén
wiley   +1 more source

Numerical simulation study of the blasting effects in irregular solution-mined cavities of bedded salt caverns

open access: yesYou-qi chuyun
ObjectiveIn the solution mining process, underground salt caverns often encounter challenges, including eccentricity in cavity dissolution and irregular shapes caused by the presence of insoluble interlayers, which can lead to uncontrollable interlayer ...
Wuxing LIANG   +4 more
doaj   +1 more source

Evaluation Methods of Salt Pillar Stability of Salt Cavern Energy Storage

open access: yesEnergies, 2022
Underground energy storage is essential for the country’s development, and underground salt cavern groups are a productive way to store energy. Safety pillar design is the key to ensuring the safe operation of large salt cavern gas storage groups. Therefore, this paper is based on the salt pillar stability design problem and analyzes three aspects: (1)
Hongling Ma   +5 more
openaire   +2 more sources

Recovery Factor of Pure Helium Injection in Depleted Gas Reservoirs and Its Influencing Factors

open access: yesEnergy Science &Engineering, Volume 14, Issue 8, Page 3922-3934, August 2026.
This study employs compositional numerical simulation to systematically investigate the effects of injection rate, production rate, storage duration, and injection‐production scheme on pure helium recovery in depleted gas reservoirs. Low injection rates reduce viscous fingering while high production rates maximize near‐wellbore helium extraction ...
Shijie Zhu   +6 more
wiley   +1 more source

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