Unlimited-Circulation Bypass Valve (UCBV)

● Use in highly deviated and horizontal wells.

①Enhanced Fluid Dynamics: In deviated and horizontal sections, maintaining proper fluid flow is crucial. The UCBV's ability to switch between bypass and non-bypass modes allows for optimized fluid dynamics, ensuring effective hole cleaning and cuttings transport.

②Reduced Friction: By allowing strategic fluid circulation, the UCBV can help reduce friction between the drill string and the wellbore wall, which is a common issue in deviated wells.

● Prevent drilling mud loss and Increase circulation rate.

①Lost Circulation Mitigation: By allowing rapid switching to bypass mode, the UCBV can quickly divert flow to the annulus, helping to seal off loss zones and prevent extensive mud loss.

②Enhanced Circulation Flexibility: The tool's design allows for increased circulation rates when needed, which can be particularly useful for hole cleaning, breaking circulation, or managing wellbore pressure.

● Reduce the drilling time.

The UCBV minimizes non-productive time (NPT) by allowing for prompt changes in circulation patterns without causing disruption.

● MWD, LWD, and Turbine better protection.

①Shock and Vibration Mitigation: By allowing controlled fluid bypass, the UCBV can help reduce hydraulic shock and vibration, protecting sensitive MWD (Measurement While Drilling) and LWD (Logging While Drilling) tools.

②Debris Management: The bypass feature can help prevent debris from damaging downhole motors or turbines by diverting flow around these components when necessary.

● Two circulating ports greatly reduce the risk of plugging.

①Dual Port System: The presence of two circulating ports significantly reduces the risk of complete tool failure due to plugging.

②Continuous Operation: Even if one port becomes partially obstructed, the dual-port design allows for continued operation, reducing the need for premature trips out of hole.

①The Unlimited-Circulation Bypass Valve (UCBV) is a highly effective tool designed for use in High Angle and Horizontal wells. It functions through ball passage, rendering the catcher seat unnecessary for tool activation.

②The UCBV is one of a kind in its ability to permit Full TFA Reverse Circulation.

③Its unique design ensures that the flow ports remain open before the activating ball reaches the catcher seat, which prevents accidental shearing and consequent catcher basket damage.

④The UCBV can be positioned in the locked open position, allowing it to run into the good bore.

 

application

 

①Protect bottom hole drilling assemblies when plugging and injecting acid and cement slurry.

②Cuttings cleaning, especially suitable for extended reach and horizontal Wells.

③Increase reaming speed while enlarging the hole.

④Enhance hole cleaning and chip cleaning during coring.