Page 67 - Pipeline Pigging Technology
P. 67
Pipeline Pigging Technology
(liters and construction contractors. It is recommended that one person is
made responsible for the total pigging aspects of the project.
Operating manual
The operating manual is the document providing the operators with
information about the operational limits of the installation. As such, it must
also detail the engineering considerations of the design.
What happens if we do not follow this sequential information gathering
and recording route?
1. We hope that everything will be all right, and allow the project simply
to drift.
2. We trust that supplier and construction contractors have a 'crystal
ball' to read the minds of the design engineers.
3. We try very hard to prove Murphy's Law that states that what can go
wrong, will go wrong.
4. We pass responsibility on, like a hot potato.
DESIGN DETAILS
The main question to be answered when examining the design of a
pipeline project is: is there a universal design for all pipelines which will
enable them to handle all the pigging activities that may be required?
To answer this question, it is necessary to list all the pigging activities, types
of product and types of pipeline.
Pigging activities
Construction - cleaning
testing
inspection
drying
Operation/ - commissioning
maintenance condensate removal
wall cleaning
corrosion control
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