Debris, scale, and obstructions limit production and intervention success. Traditional cleanout methods require stopping operations or increasing differential pressure to switch between milling and circulation.
These interruptions increase time, fluid use, and cost—especially in long or complex wells.
The EXaCT cleanout service, part of the ExaCT™ electrical downhole CT control system, provides electrically controlled, real-time switching between intervention modes to optimize debris removal operations, including milling and circulation, without interrupting workflow.
Continuous telemetry and on-command actuation, enabled by multicycle system for actuated response (MSAR) technology, maintain steady downhole operation while improving efficiency and reducing fluid consumption, even during long-duration cleanout operations in challenging well conditions.
Adjust downhole operation instantly.
Switch modes without stopping the job.
Optimize cleanout execution.
Support long-duration operations.
Maintain efficiency in challenging wells.
Flow diversion enables real-time solids detection and control.
Real-time electrical mode switching reduced liquid and nitrogen consumption by about 20% compared with fixed, depth-based CT cleanout programs offshore.
Condition-based CT cleanout finished about 30% faster than similar offshore wells, saving approximately 12 hours of intervention time in Norway.
The MSAR switches between milling and circulation on command while maintaining continuous pumping during cleanout operations.
The condition-based cleanout workflow removed chalk blockages, reached total depth, restored full well access, and returned the offshore well to production.
Conventional CT cleanout often uses hydraulic activation or pressure cycling to switch between milling and circulation, which can interrupt operations. The MSAR tool in the ExaCT cleanout service switches modes electrically on command without stopping pumps.
Yes. The MSAR tool switches between milling and circulation on command while maintaining continuous pumping, including in nitrogen-assisted environments.
In an Aker BP deployment offshore Norway, the condition-based workflow finished about 30% faster than similar wells, saving approximately 12 hours of offshore intervention time.
Chalk, scale, and other debris can accumulate in mature and depleted wells. Low reservoir pressure and extended horizontal sections can increase fluid-loss risk and limit the effectiveness of fixed cleanout programs.
The ExaCT cleanout service is part of the ExaCT system. It combines real-time downhole measurements with the MSAR tool to switch between milling and circulation without interrupting the workflow.
