In mid-February Saraco began discussions with ROSEN to launch this challenging inspection project. The challenges for this case were abundant and a combination of the following factors:
- No traps were available
- Only one point of access was feasible
- The presence of miter bends made negotiability a challenge in itself
In addition to the already unique needs the customer required a series of boundary conditions to be considered: No interference with airport operations would be permitted, full inspection coverage was required, the product was not to be contaminated during the inspection procedure, and the presence of on-site personnel in close proximity to runway and taxi lanes was not allowed during daytime hours.
These conditions resulted in a smaller degree of flexibility for the ROSEN Solutions Officers when conceiving the tailored approach.
As ROSEN Solution Officers began their work technical clarification caused for parties to agree on a medium propelled bi-directional UT inspection solution. The pipeline was isolated from the system as jet fuel supply was guaranteed via the second parallel line. The solution applied consisted of a variety of adaptations including:
- The installation of a temporary trap
- System tracking as the tool passed critical installations
- Propulsion created by using the pumps from the hydrant system
(10 bar, 145 psi)
- A loop at the tank farm allowed the tool to be pushed back using the same pumping systems
- The flow was controlled through a reduced diameter ball valve and flow meter.
The timing of this project was ideal as ROSEN Solutions Officers had just completed the development of the world’s shortest 6” bi-directional UT inspection tool, and this was a great opportunity for its debut.
Having successfully applied this solution demonstrates again that combining ROSEN’s experience and expertise with close collaboration of Saraco’s personnel is the right recipe for successfully talking any challenging pipeline.
The tailored approach allowed for optimized adaptations while procuring access to the pipeline. Only minor temporary modifications to the pipeline were necessary.. In addition, tool launching and receiving could be done by hand, reducing operational complexity while on-site. No digs were required allowing for optimized time and cost.
Complete data sets allowed for a full understanding of the pipeline condition and the ability to take measures for its integrity management. This ensures compliance with safety standards and regulations.
ROSEN’s bi-directional approach assures the tool can be removed from the pipeline at any time. This minimizes the operational risk and effectively guarantees operational safety.