Toe Circulation Sub (CS)

Tartan’s Circulation Sub (CS) is used to control flow between the completion string and annulus in all open hole multistage stimulation applications. By closing off flow with the annulus, the Toe Circulation Sub enables activation of tools in the completion string via hydraulic pressure.

The tool is activated by pumping an appropriate activation ball and is designed such that once activated, the ball is no longer needed to provide the seal.