{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9851315","patent":{"patent_number":"US-9851315","title":"Methods for quantitative characterization of asphaltenes in solutions using two-dimensional low-field NMR measurement","assignee":null,"inventors":[],"filing_date":"2014-12-11T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["G01N","G01N"],"num_claims":14,"abstract":"A method for determining the concentration of asphaltenes in a solution is described. A model is first established for estimating the concentration of asphaltenes in a solution based on multiple samples of solutions of asphaltenes in the solvent in which the concentrations are known. The multiple samples have varying concentrations of asphaltenes. The diffusivity and relaxation time are measured for each sample using two-dimensional NMR. The ratio of diffusivity to relaxation time for each sample is then calculated. A linear equation is determined to fit the relationship between the ratio of diffusivity to relaxation time and the asphaltene concentration by weight for the multiple samples, thus creating the model. For a given solution sample for which the concentration of asphaltenes is desired to be determined, diffusivity and relaxation time are determined using two-dimensional NMR, and the ratio of diffusivity to relaxation time is calculated. This ratio is then used with the model, so that the linear equation can be solved for the asphaltene concentration in the given solution sample."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods for quantitative characterization of asphaltenes in solutions using two-dimensional low-field NMR measurement","description":"A method for determining the concentration of asphaltenes in a solution is described. A model is first established for estimating the concentration of asphaltenes in a solution based on multiple sampl","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9851315","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-9851315","citation_suggestion":"Patentable. \"Methods for quantitative characterization of asphaltenes in solutions using two-dimensional low-field NMR measurement\" (US-9851315). https://patentable.app/patents/US-9851315","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9851315","json":"https://patentable.app/api/llm-context/US-9851315","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:39:20.988Z"}