Accelus™ Ball-Shift Frac Sleeves
Accelus ball-shift sleeves are used to stimulate the individual stages of multistage completions at high frac rates in a continuous pumping operation. The sleeves are placed in the completion string according to the design of the completion. After a ball pumped down the surface seals on the inner sleeve ball seat, the buildup of pressure shifts the inner sleeve to open the frac ports, thereby allowing the stimulation of the formation.