DSFB: Structural Residual Semiotics Engine for Upstream and Midstream Oil and Gas Systems

Abstract—Modern oil and gas supervisory systems produce dense,high-frequency sensor residuals that are routinely discarded after prob-abilistic anomaly filters have rendered their verdict. These discardedresiduals are not noise; they carry structured information about the phys-ical regime transitions, load migrations, and boundary interactions thatcharacterize subsea hydraulic circuits, pipeline flow-pressure couplings,rotary drilling mechanics, and rotating equipment dynamics. This pa-per introduces the Drift–Slew Fusion Bootstrap (DSFB), a deterministic,read-only residual structuring framework that decomposes discardedresiduals into a signed drift component and a magnitude-rate slewcomponent, then maps the…