Automatic Flow Management Valve
EvoFLO is a ball valve system deployed with the HydroVolve INFINITY engine to divert and direct the necessary flow and pressure to power the INFINITY. It is fully tuneable and added as an optional extra built-in module to the HydroVolve HAMMER.
EvoFLO provides full control over the drill string pressure regime to control INFINITY as and when required. It protects the wellbore from unwanted pressure surges during HydroVolve HAMMER operation, and diverts flow to annulus to allow improved circulation and lubrication of the drill string during operation. It also allows for circulation to be regained in the event of hole collapse and loss of circulation.
EvoFLO is recommended for use in any application where under normal circumstances full-bore access is required through the drillstring for flow or intervention purposes, but where maximum hydraulic power is needed in the HydroVolve HAMMER for extraction purposes thereby necessitating the full or partial closure of the drill string through-bore.
EvoFlo is coupled to the HydroVolve HAMMER to the pre-prepared module linkage.
An automatic valve closure system ensures closure of the ball valve when the HydroVolve HAMMER is positioned into ‘Active’ mode.
Flow diversion to annulus is controlled by virtue of the annular flow regulator valve. The flow rate can be pre-determined at surface by fitting the desired number and size of orifice chokes.
Flow regulation through the main bore is controlled by virtue of the full closing ball valve.
When closed, the upper spherical ball element provides a full-bore flow passage. The lower spherical element is provided with a choke fitment port which can be fully plugged or fitted with the desired size orifice-choke.
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