{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9646115","patent":{"patent_number":"US-9646115","title":"Determining a limit of failure in a wellbore wall","assignee":null,"inventors":[],"filing_date":"2013-04-16T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["G06F"],"num_claims":21,"abstract":"A method to determine a drilling fluid density limit involves obtaining a geomechanical model of a target borehole, generating a depth of damage model of the target borehole to describe a relationship between a drilling fluid pressure and a depth of damage representing a modeled amount of yielded rock surrounding the target borehole, where the modeled amount of the yielded rock is calculated using a stress model according to a pre-determined failure criterion, and calculating, using the depth of damage model and the geomechanical model, the drilling fluid density limit as a function of the subterranean formation depth, where the drilling fluid density limit maintains the depth of damage at a target level for the target borehole, where the drilling fluid density limit corresponds to a depth gradient of the drilling fluid pressure, where the target borehole is drilled based at least on the drilling fluid density limit."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Determining a limit of failure in a wellbore wall","description":"A method to determine a drilling fluid density limit involves obtaining a geomechanical model of a target borehole, generating a depth of damage model of the target borehole to describe a relationship","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9646115","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9646115","citation_suggestion":"Patentable. \"Determining a limit of failure in a wellbore wall\" (US-9646115). https://patentable.app/patents/US-9646115","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9646115","json":"https://patentable.app/api/llm-context/US-9646115","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:58:51.210Z"}