Study on the sensitivity of injection-production parameters for the long-term safety and stability of salt cavern gas storage

Study on the sensitivity of injection-production parameters for the long-term safety and stability of salt cavern gas storage | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Study on the sensitivity of injection-production parameters for the long-term safety and stability of salt cavern gas storage Huabin Zhang, Peng Wang, Kai Gao, Xianru Yue This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-2259540/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Injection-production operation parameters such as the minimum injection gas pressure (IGP:operation pressure), IGP interval, minimum IGP residence time and injection-production cycle period of long-term operation of underground salt rock gas storage will not only affect the storage capacity and working ability of gas storage but also be crucial to the safety and stability of the surrounding rock. A 3D geomechanical model of a salt cavern was established by WinUbro to study the stability of gas storage in the operation period. Five evaluation criteria for predicting the feasibility and stability of gas storage were comprehensively considered, including deformation, expansion safety factor, volume shrinkage, plastic zone and sensitivity. The stability of the surrounding rock of the cavern under different injection-production operation parameters and the degree of influence of each parameter on the stability of gas storage during the operation period are compared. The results show that the displacement of the surrounding rock and its deformation distribution range, the displacement of the roof of the cavern, the expansion coefficient of the surrounding rock of the salt cavern and the volume shrinkage rate of the salt cavern decrease significantly with the injection-production operation parameters. The plastic zone of the salt cavern increases with the rise in the IGP interval and the increase in the minimum IGP; however, the minimum IGP residence time and injection-production period have no obvious influence on the plastic zone of the salt cavern. The IGP interval and the minimum IGP have a positive influence on the plastic zone of the salt cavern, however, the minimum IGP residence time and injection-production period have no obvious influence on the plastic zone. The sensitivity coefficients of each injection-production operation parameter are ranked, from largest to smallest, as follows: IGP interval, minimum IGP, minimum IGP residence time and injection-production cycle. This conclusion can provide a theoretical basis for further optimizing the operation scheme design of salt rock gas reservoirs and ensuring the safety and stability of the long-term injection-production process of layered salt rock gas storage. Safety engineering Injection-production operation Stability Sensitivity Numerical simulation Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-2259540","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":151465994,"identity":"b2e10e23-719f-4bde-83b0-21ed776df020","order_by":0,"name":"Huabin Zhang","email":"","orcid":"","institution":"Liaoning Technical University","correspondingAuthor":false,"submittingAuthor":false,"prefix":"","firstName":"Huabin","middleName":"","lastName":"Zhang","suffix":""},{"id":151465995,"identity":"c6979abd-b984-4f2e-9ed9-12e9c6242626","order_by":1,"name":"Peng 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