SANCCUS have developed a range of water based and glycol based lubricating gels which when used in conjunction with mechanical pigs massively reduce this risk. Being gels they actually offer three benefits in one;
- Greatly reduce pig wear
- Pick up and transport any debris encountered by the pig out of the pipeline
- Reduce bypass of line contents thereby increasing the efficiency of the pigging operation
These gels will also provide cooling as well as lubrication of high seal pigs.
These same gels have also been effectively deployed for degassing pipelines from vessels via long downlines because the same lubricating effect also results in a three fold reduction in friction pressure through narrow downlines allowing the application of far more viscous gels that previous possible in subsea to topside operations.