Development of rock creep test system considering dynamic-static and ultralow-frequency cyclic loading

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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The Casing Collapse Mechanism in Salt Formations in Deepwater Fields in Brazil

Processes, Journal Year: 2025, Volume and Issue: 13(2), P. 301 - 301

Published: Jan. 22, 2025

Salt formations are commonly encountered during oil and gas drilling. Due to the rheological properties of salt rocks, casing collapse accidents happen frequently. Under action nonuniform geostress, failure has become an important influencing factor that restricts exploration development benefits deep ultra-deep wells. Casing stress in a period after well cementation formation Brazilian deepwater fields was analyzed. Results show geostress is instantaneously applied on cement sheath when completed then transferred casing. Stress inner wall grows with increase angle direction maximum horizontal principal it reaches minimum stress. As creep continues, casings gradually enlarges circumferential rings tends be uniform, which means weakens nonuniformity deformation. The pressure outer at first decrease as enlarges. reduces increasing thickness selected, strength improved increases. research results provide certain theoretical guidance for check engineering formations.

Language: Английский

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Evaluating Fluid/Rock Interactions for Energy Storage in Salt Caverns – Part II: Effect of Hydrogen on Salt Rock Dissolution in Brine

Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Language: Английский

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The Development, Current Status and Challenges of Salt Cavern Hydrogen Storage Technology in China

Energies, Journal Year: 2025, Volume and Issue: 18(5), P. 1044 - 1044

Published: Feb. 21, 2025

This paper provides a systematic visualization of the development, current status and challenges salt cavern hydrogen storage technology based on relevant literature from past five years in Web Science Core Collection database. Using VOSviewer (version 1.6.20) CiteSpace software (advanced version 6.3.R3), this study analyzes field knowledge mapping perspective. The findings reveal that global research hotspots are primarily focused multi-energy collaboration, integration renewable energy systems exploration commercialization, highlighting essential role driving transition promoting sustainable development. In China, mainly concentrates theoretical innovations technological optimizations to address complex geological conditions. Despite rapid growth number Chinese publications, unresolved remain, such as complexity layered rock, thermodynamic coupling effects during high-frequency injection extraction, well issues concerning permeability microbial activity. Moving forward, China’s should focus strengthening engineering practices suited local conditions enhancing application intelligent technologies, thereby facilitating translation into practical applications.

Language: Английский

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Determination of operating parameters for W-shaped salt caverns

Energy, Journal Year: 2025, Volume and Issue: unknown, P. 135204 - 135204

Published: Feb. 1, 2025

Language: Английский

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Safety evaluation system of salt cavern hydrogen storage based on matter-element extension method

Journal of Energy Storage, Journal Year: 2025, Volume and Issue: 116, P. 116028 - 116028

Published: March 3, 2025

Language: Английский

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Experimental study on shape expansion and construction efficiency of horizontal hydrogen storage salt caverns in bedded salt

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 114, P. 508 - 518

Published: March 1, 2025

Language: Английский

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Leakage risk assessment system for salt cavern hydrogen storage

Deep Underground Science and Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: March 31, 2025

Abstract Salt cavern hydrogen storage (SCHS) is an important component of large‐scale underground storage, with advantages such as large capacity and economic feasibility. However, the uniqueness salt structure inherent high risk pose a potential leakage risk. This study aims to assess through comprehensive assessment. First, three major influencing factors are summarized, taking into account unique engineering, geological conditions, operating conditions storage. Subsequently, evaluation index system was established, weights indexes were assigned using combination assignment method. On basis two‐dimensional cloud model, new assessment method proposed. In addition, level facility proposed be constructed in Pingdingshan City, Henan Province, carried out. Finally, corresponding control preventive measures The results useful instructive for safe construction deep

Language: Английский

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Analysis of the mechanical and leakage characteristics of surrounding rock in sandstone compressed air storage caverns after lining cracks

Construction and Building Materials, Journal Year: 2025, Volume and Issue: 474, P. 141086 - 141086

Published: April 7, 2025

Language: Английский

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Comprehensive evaluation of green hydrogen storage in an ultra-deep horizontal salt cavern

Renewable Energy, Journal Year: 2025, Volume and Issue: unknown, P. 123051 - 123051

Published: April 1, 2025

Language: Английский

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