When turnaround windows are tight and heater efficiency is mission-critical, mechanical pigging becomes both an art and a science.
At D.D. Technology, we’ve advanced the process with our newly automated pumping unit, engineered to deliver greater precision, data transparency and operational efficiency during pigging operations.
A new era of real-time monitoring
More than just a pump, the unit functions as an integrated control and intelligence system. Built from the ground up with automation in mind, it provides field operators with live monitoring of critical system variables, equipping them to make informed decisions throughout pigging runs.
At the core of this innovation lies a next-generation digital Pressure vs. Time charting system, replacing outdated recording methods. The high-resolution digital interface offers clear, real-time visibility into pressure behavior during each pig pass — enhancing the operator’s understanding of its movement through heater tubes.
Better charts, better results
By clearly tracking pressure changes through each coil, operators gain access to a refined digital pressure charting system. This enables better interpretation of spikes, drops and flow transitions that indicate coke buildup or pig movement, even in complex, multi-diameter heater coils. Identifying coke accumulation in isolated areas allows crews to deploy a cleaning pig precisely where it’s needed.
Improved chart clarity also helps crews fine-tune readings in real time, quickly recognize subtle changes, and respond faster to anomalies. The result: increased accuracy in pig tracking and higher-quality decoking outcomes.
Proven performance, fleetwide adoption underway
The newly automated unit has already demonstrated outstanding performance on numerous projects, delivering cleaner runs, enhanced coke locating and better decision-making throughout the pigging cycle.
Following this success, DDT has initiated a standardization and upgrade program across its entire fleet of pumping units, ensuring all future pigging operations — regardless of location or client — benefit from the same level of automation, precision and data insight.
Technology that supports technicians Beyond generating data, the pumping unit empowers technicians. Features such as realtime alerts, visual pressure trend markers and customizable overlays enhance confidence and adaptability in the field.
Post-job analysis also improves, allowing crews to evaluate run quality, pinpoint operational anomalies and refine strategies for future jobs. Combined with DDT’s proprietary DDT Piggs, which feature customizable appendages for various fouling conditions, and our specialized field crews, this innovation aligns perfectly with our mission: optimizing heater performance through smarter, faster and more accurate pigging.
Continuing the tradition of innovation The automated pumping unit exemplifies DDT’s long-standing commitment to innovation in mechanical pigging. Precision, predictability and measurable results are at the heart of our approach.
With heater reliability and turnaround efficiency under constant pressure, DDT’s latest advancement delivers what matters most: clarity, control and cleaner results.
For more information, visit decoking.com.
