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| Title: |
Pigging velocities and the variable-speed pig |
| Category: |
Pigsource Papers
|
| Downloadable: |
Yes  |
| Project No.: |
|
| Research
Agency: |
|
| Catalog No.: |
pg3111e |
| Date
of Publication: |
1992 |
| Price: |
$25.00
|
| Authors: |
G L Smith |
| Abstract: |
The trend in the industry today is to fine-tune routine pigging procedures and use high technology to inspect and analyze the structural conditions of pipelines. This is aimed at maximizing the operating efficiency of pipelines, and to safely extend their useful life. One aspect of pigging which is sometimes overlooked is the speed at which a pig travels and the effect that speed has over the efficiency of the pig run, especially at high velocities. Reducing the flow of product to reduce pig speed can be inconvenient and expensive. The use of fixed by-pass ports in cups, discs or through pig bodies is common, but the results are inconsistent and not predictable. Efforts are now being made to design pigging equipment which can consistently operate independently of normal pipeline flow.
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