Pipeline pigs - PowerPoint PPT Presentation

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Pipeline pigs

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Safe Pipeline Pigging Procedures. Pipeline pigging is a method used all around Canada and the rest of the world as an effective method of cleaning, inspecting and maintaining industrial pipes. – PowerPoint PPT presentation

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Title: Pipeline pigs


1
Pipeline Pigging Safe Pipeline Pigging Procedures
2
Pipeline pigging is a method used all around
Canada and the rest of the world as an effective
method of cleaning, inspecting and maintaining
industrial pipes. While pipeline pigging offers
the advantage of not interrupting production
processes, it can be a high-risk procedure,
unless it is facilitated by a qualified operator.
3
Any type of pipeline pigging requires extensive
planning, and professional assistance for either
the pig manufacturers or a qualified pipeline
cleaning service company. The key to safe
operation is to eliminate or at least minimize
ILI tool sensor liftoff. Proper application
ensures maximum results for companies, whether
they require mechanical dry pigging or liquid
pipeline pigging with mechanical pigs.
4
The process involves launcher and receiving
station, which is generally a vessel that is
connected parallel to the pipeline that will be
cleaned or inspected. This method enables the
operator to launch and receive the pipeline pig,
using the normal operating pressure of the
pipeline to propel it forward without stopping
production or interrupting the flow of the liquid
product. The launcher or receiver vessel has a
closure door for safe operation, and the process
involves a sequence of valve operations combined
with opening and closing of the door. A mistake
during this operation could have dire
consequences.
5
Pipeline Pigging Launcher and Receiver Station
Operation
  • Safe operation of the pipeline pigging closure
    door requires that the operator follows certain
    safety procedures before opening the closure
  • Drain and depressurize the vessel.
  • Isolate the vessel from the process pipeline.
  • If drain systems or vent headers are present, the
    vessel must first be isolated.
  • The vessel should not contain any toxic gasses,
    such as H2S.

6
  • The vessel must be isolated when the door is
    open.
  • The closure must be shut tightly before the
    launching or receiving process commences.
  • Production may be interrupted if the throttle is
    not opened fully before the operator isolates the
    launcher or receiver station and that's why it is
    so important to prevent opening the doors when
    the system is under pressure.

7
Pipeline pigging inspections ensure that your
system is operating as it should. The pig will
measure a range of variables from the inside,
including the volume, pressure and wall
thickness. Again, this process should be handled
by a professional pipeline pigging operator who
is trained to administer the pig and interpret
the results. When buying a pipeline pigging
system, be sure to deal with a reputable ILI
company who is able to offer the support needed
for best results.
8
Drinkwater Products 10789 Hwy 182 Franklin, LA
70538, USA Phone 1.800.515.7078 Drinkwaterproducts
.com
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