The Study of Ultrasonic Technology in Flow-back Fracturing Fluid Treatment

摘要

Ultrasonic technology was, for the first time, utilized in the pretreatment of flow-back fracturing fluid (FBFF) in an oil field. The effects of each parameter, including frequency of ultrasonic, energy density, working time, and dosage of flocculant (poly-aluminum chloride), were investigated seriously in this study. Ultrasonic flocculation as a novel technology applied in FBFF provided good performance at reducing viscosity of fluid, even better than chemical oxidation.