Asphaltene Deposition Envelope (ADE) Screener

Screen a live crude for asphaltene precipitation risk from SARA composition and reservoir / operating pressures. Returns the Colloidal Instability Index (CII), saturate/aromatic ratio, de Boer-style relative-pressure risk band, and an empirical upper asphaltene onset pressure (UAOP). Use as a FEED-stage filter before commissioning a full PVT + light-scattering UAOP measurement.