Many engineers in the oil and gas industry will already be aware of the challenges arising from pipeline pigging.
Pipelines need to be cleaned and inspected to keep up to code, ensuring that any product flowing through them is delivered at the other end without hindrance.
Managing the pipeline can be challenging. Monitoring condition and ensuring optimum performance can be even harder if the network is long or complex.
Here is our expert guide on the various challenges engineers can face with pipeline pigging - but most importantly, how they can be resolved.
Individual challenges can occur from pipelines that are deemed to be 'unpiggable'. What is an unpiggable pipeline? Simply put, a line that is difficult to pig.
Characteristics include problematic bends/offtakes/tie-ins, small or varying diameters (often with significant diameter changes), old or long pipelines, or pipelines where there are flow (too much, not enough or zero) or access restrictions .
Contamination, dirt and wax buildup is an unavoidable feature of pipeline operation, whether liquid or gas. To ensure pipelines operate at optimum efficincy, it is necessary to clean the pipeline. Cleaning prior to inline inspection (ILI) is also a requirement.
So, how can FTL Technology help?
We have designed and supplied an extensive range of VariPig systems that have been specially designed with multi-diameter capability for various pipeline diameters. Other design features of VariPig make the system ideally suited for use in complex pipeline systems, long distance pipelines or where complex pigging scenarios are a requirement.
These next-generation pipeline systems accommodate diameter changes in operation, starting within a small diameter pipeline then growing into a larger diameter pipeline, before subsequently re-entering into a smaller diameter section of pipeline.
VariPig System Benefits:
- Capable of running multi-diameter pipelines with large diameter differentials
- Centreline running capability, low disc wear
- Low drive pressure
- Ability to pass Tee’s and Wye’s
- Ability to operate in tight bends
- ‘Self Supporting’ – reduces wear on discs
- Controlled rotation giving even wear on discs
- 3D solid modelling ensures functionality
- Re-deployable asset
With proper and scheduled maintenance of pipelines you decrease the chances of the pipeline failing.