A coupled hydro-mechanical field-enriched finite element method for simulating the hydraulic fracture process of rocks subjected to in-situ stresses

A coupled hydro-mechanical field-enriched finite element method for simulating the hydraulic fracture process of rocks subjected to in-situ stresses | 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 A coupled hydro-mechanical field-enriched finite element method for simulating the hydraulic fracture process of rocks subjected to in-situ stresses Linyuan Han, Xiaoping Zhou This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4568416/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 22 Jan, 2025 Read the published version in Acta Geotechnica → Version 1 posted 4 You are reading this latest preprint version Abstract A coupled hydro-mechanical field-enriched finite element method (HM-FE-FEM) is developed for simulating the hydraulic fracture process of rocks subjected to in-situ stresses. The staggered iterative scheme based on the Newton-Raphson iterative algorithm is utilized to address the coupled hydro-mechanical problems. The opening process of the hydraulic fracture and natural fracture subjected to in-situ stresses can be reproduced by the proposed method. The accuracy of the proposed method is verified through stress intensity factor, fracture opening and experiment results. For coalescence patterns between hydraulic and natural fractures, the influences of horizontal stress difference and intersection angle are analyzed and discussed. Additionally, for coalescence patterns between hydraulic fracture and natural karst caves, the influences of cave location, cave radius and horizontal stress difference are investigated and discussed. The numerical results illustrate the effectiveness of HM-FE-FEM in handling the complex coalescence behaviors in the hydraulic fracture process of underground rock reservoirs with different defects. This study has a certain guiding significance for optimizing the fracturing operation parameters. Coupled hydro-mechanical field-enriched finite element method hydraulic fracture process natural fracture natural karst cave rocks Full Text Additional Declarations No competing interests reported. Cite Share Download PDF Status: Published Journal Publication published 22 Jan, 2025 Read the published version in Acta Geotechnica → Version 1 posted Editorial decision: Revision requested 16 Jun, 2024 Editor assigned by journal 16 Jun, 2024 Submission checks completed at journal 15 Jun, 2024 First submitted to journal 12 Jun, 2024 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. 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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-4568416","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":315086973,"identity":"2730a200-7a1b-4fc9-9672-eab1f0362d03","order_by":0,"name":"Linyuan Han","email":"","orcid":"","institution":"Wuhan University","correspondingAuthor":false,"prefix":"","firstName":"Linyuan","middleName":"","lastName":"Han","suffix":""},{"id":315086974,"identity":"7d17ce6c-c7d1-4823-9e50-273d015e11ee","order_by":1,"name":"Xiaoping Zhou","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAAA80lEQVRIiWNgGAWjYDACZjApASLYgNiGh5+9gTQtaTKSPQeItxCk5bCNwQ0H/MoMjjM/fMC4wyJP3oH92YOPbed5GG4wMH74mINbi2Qzm7EB4xmJYsMDDOmGM9tu8zDObmCWnLkNtxZ+ZgYzCcY2icSNDQzHpHmBWphlDrAx8+LRwsbM/g2qhbENqOUcD5tEAn4t/Mw8EFvmMzCzAbUc4OEhpEWymacY5JfEDQxsbJIzziXzSPAcbMbrF4PzxzcCQ6wucX4D+zOJD2V29vbHmw9++IhHCwgw/20A6r3/AMZnbMCvHqZGngh1o2AUjIJRMEIBAOrQRpVDXffrAAAAAElFTkSuQmCC","orcid":"","institution":"Wuhan University","correspondingAuthor":true,"prefix":"","firstName":"Xiaoping","middleName":"","lastName":"Zhou","suffix":""}],"badges":[],"createdAt":"2024-06-12 07:49:31","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4568416/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4568416/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s11440-024-02518-2","type":"published","date":"2025-01-22T15:57:24+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":74858562,"identity":"debd33e1-a13d-4798-896a-64115d4a4f3e","added_by":"auto","created_at":"2025-01-27 16:11:34","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1751542,"visible":true,"origin":"","legend":"","description":"","filename":"20240612ManuscriptLinyuanHanZXP612.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4568416/v1_covered_3483d77d-b8f2-4506-9f23-12cf43baae8c.pdf"}],"financialInterests":"No competing interests reported.","formattedTitle":"A coupled hydro-mechanical field-enriched finite element method for simulating the hydraulic fracture process of rocks subjected to in-situ stresses","fulltext":[],"fulltextSource":"","fullText":"","funders":[],"hasAdminPriorityOnWorkflow":false,"hasManuscriptDocX":false,"hasOptedInToPreprint":true,"hasPassedJournalQc":"","hasAnyPriority":false,"hideJournal":false,"highlight":"","institution":"","isAcceptedByJournal":true,"isAuthorSuppliedPdf":true,"isDeskRejected":"","isHiddenFromSearch":false,"isInQc":false,"isInWorkflow":false,"isPdf":true,"isPdfUpToDate":true,"isWithdrawnOrRetracted":false,"journal":{"display":true,"email":"[email protected]","identity":"acta-geotechnica","isNatureJournal":false,"hasQc":true,"allowDirectSubmit":false,"externalIdentity":"ageo","sideBox":"Learn more about [Acta Geotechnica](http://link.springer.com/journal/11440)","snPcode":"11440","submissionUrl":"https://submission.nature.com/new-submission/11440/3","title":"Acta Geotechnica","twitterHandle":"","acdcEnabled":true,"dfaEnabled":true,"editorialSystem":"stoa","reportingPortfolio":"Springer Hybrid","inReviewEnabled":true,"inReviewRevisionsEnabled":false},"keywords":"Coupled hydro-mechanical field-enriched finite element method, hydraulic fracture process, natural fracture, natural karst cave, rocks","lastPublishedDoi":"10.21203/rs.3.rs-4568416/v1","lastPublishedDoiUrl":"https://doi.org/10.21203/rs.3.rs-4568416/v1","license":{"name":"CC BY 4.0","url":"https://creativecommons.org/licenses/by/4.0/"},"manuscriptAbstract":"A coupled hydro-mechanical field-enriched finite element method (HM-FE-FEM) is developed for simulating the hydraulic fracture process of rocks subjected to in-situ stresses. 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