DSI PBL® Sub (Circulatin sub) Multiple Activation Bypass System

How PBL sub (circulating sub) works?!

The PBL® Multiple Activation Bypass System is a simple, reliable tool that can assist you in reducing drilling costs associated with different types of hole conditions. Originally developed to enable the aggressive pumping of LCM materials and to increase circulation rates for enhanced hole cleaning, the PBL has evolved to benefit many applications in the drilling, completion, and workover phases of a well such as:
• Pumping all types of LCM pills, including aggressive pills and cement squeezes
• Increasing circulation rates for improved hole cleaning resulting in reduced torque and drag, thereby increasing ROP
• Increasing annular velocity in highly deviated and horizontal wellbores where removal of cutting beds and hole cleaning are problematic
• Fluid displacements
• Sub-sea riser/BOP jetting
• Acidizing and stimulation treatments
• Coring applications

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