Case Study - Site operations: Pull-through Pig—Inpipe Products

iNPIPE PRODUCTS™ was approached to provide an onshore to offshore cable pull-through pig and site execution to an offshore windfarm service Company. The 12”NS HDPE pipeline required a 2” messenger wire threading through the 600m long onshore to offshore pipeline prior to a 5” cable pull-through by the Client.

Following review of the project details and discussions with the Client, iNPIPE PRODUCTS™ provided a turnkey solution, which included:

• Project Management
• Pig Design
• Development of Pigging Procedures and Risk
• Assessment
• Manufacture of the Cable Pull-Through Pigs
• Site Management
• Site Personnel
• Pigging Equipment Supply including Temporary Pig Launcher
• Cable Pull-Through Operations

14” x 12”NS temporary pig launcher

The project required iNPIPE PRODUCTS™ to mobilise their site personnel, cable pull-through pig, temporary pig launcher and equipment spread to a site on the east coast of Scotland. The pipeline is 12”NS in diameter x 600mm long with numerous bends (size unknown).

12”NS Cable pull through pig

Following the mobilisation of the personnel, temporary pig launcher and equipment on schedule, the operation was coordinated in conjunction with a 3rd party on behalf of the end Client.

On completion of the ground works and with the pipeline exposed and the temporary launcher / receiver installed complete with pigging pump fitted, the cable pull through was good to commence.

After pigging of the metal bodied pig which became lodged due to an unknown crushing of the pipeline, a special dual density foam pig was produced in record time to be on-site to be able to run through the pipeline, but also be able to negotiate a 45% pipeline reduction.

The project was completed successfully and ahead of budget.