| |
|
Pipeline Services |
|
Why Pig a Pipeline ? |
Pipeline pigs are devices that are inserted into and travel throughout the length of a pipeline driven by a product flow.
They were originally developed to remove deposits which could obstruct or retard flow through a pipeline .
Today pigs are used during all phases in the life of a pipeline for many different reasons.
|
|
Although each pipeline has its own set of characteristics which affect how and why pigging is used, there are basically three reasons to pig a pipeline:
|
|
- To batch or separate dissimilar products;
- For displacement purposes;
- For internal inspection.
|
When you pig a pipeline; |
|
- Clean out deposits and debris
- Gauging the internal bore to detect dent buckles
- Cleaning off dirt, rust and mill scale
- Flooding the line for hydrotest
- Dewatering prior to commissioning
|
|
If you don't pig a pipeline ; |
|
- It wreak havoc with the operation of the pipeline by blocking downstream filters
- Damaging pump impellers
- Jamming valves open
- Contamination of product
- Corrosion attack inside the pipeline.
|
|
| |
|
