Sand Cleaning – Oil & Gas Sand Cleaning Defined (B-FSM-137)
Definition: Remove adsorbed oil layer from produced solids using mechanical scrubbing in a compact system primarily for offshore use.
- Minimal footprint and weight (cyclonic technology)
- No or minimal chemical use (solvents or surfactants)
- Minimal energy use (e.g. heat addition)
Uses combination of mechanical forces:
- Shear: liquid-particle interaction
- Abrasion: particle-wall interaction
- Attrition: particle-particle interaction
Oil attachment to sand particle
- Oil can attach to sand particle in many different ways as illustrated in graphic above
- Rawlins, C.H. and Wang, I. 2001. “Design and Installation of a Sand-Separation and -Handling System for a Gulf of Mexico Oil Production Facility”. SPE Production and Facilities, August, pp. 134-140. https://doi.org/10.2118/72999-PA
- Rawlins, C.H. 2019. “Enhanced Production Through Surface Facilities Sand Management.” SPE Distinguished Lecturer presentation. Link here
Next week I will cover oil-on-sand calculations.