Worldwide service

DSI is the specialised leader in downhole bypass tool technology and is able to cater to service customers‘ needs worldwide.

A company of Schoeller-Bleckmann

About DSI

We have a very clear focus – the PBL Multiple Activation Bypass System is our core solution. It is not just one product among many in the portfolio. Our product specialisation together with our experience, gained over 20 years of supplying the PBL Multiple Activation Bypass System, gives DSI unprecedented technical knowledge and expertise. For our customers, this means increased security and reliability when it comes to applying our products and services. In addition, we can access the global network of Schoeller-Bleckmann Oilfield Equipment AG.

About DSI 1

Get in touch

We are available to meet at any time in order to discuss your applications and drilling problems, providing you with custom solutions.

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PBL UltiCirc©

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DSI HydraFlow©

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Using PBL for Vibration Mitigation

If off bottom high speed string rotation during clean up cycle is a concern (vibrations, tool failures, etc.), a PBL tool can be used as an alternative for achieving the hole cleaning objective. Activating the tool to bypass flow above the BHA will allow for higher flow rate by eliminating the BHA and bit pressure losses. Depending on the hydraulics and ECD limitations, if high flowrate can achieve a turbulent regime across the drill pipe annulus, this can be effectively used to achieve the hole cleaning objective without subjecting the BHA to high speed off bottom rotation, thus preventing any further risk of damage/ failure to the BHA.