Pigging System, developed in the early 70s. in
order to monitor
pipeline pigs and accurately locate
them in the event that they become obstructed.
all the products
listed below can be customized to your
its basic form consists of
pigs are designed as a
magnetic circuit with
sufficient field strength in order to saturate
the wall of the pipeline
through which it is traveling.
Pig is normally comprised
of a steel body
to which is attached a magnetic section, four
urethane cups or discs,
spacers, a nose plate designed to take shock,
and a rear locking
section may take the form
of the entire pig
body for smaller sized pigs (under 8"
diameter), or a collar (cup
spacer) on larger
circuit is designed as two
(2) mild steel
plates with independent magnetic, Neodymium
Iron Boron with an energy
of 45M G/Oe, modules around the centerline of
the pig, designed to
the magnetic flux through the pipe wall.
magnetic circuits for
most other pipeline
circuit may also be used in
pigs, polly pigs or spherical pigs.
magnetometers, or statics,
are remote field
passage indicators which allow the operators
pigs through sections of line. Now
available with Orbcomm
Satellite Monitoring, PC desktop / mobile
a specially designed
used to monitor magnetic pigs in above ground
sections, and during
instrument provides a very
essential part of the
total system, it is used to locate the
position of the pig should it
obstructed during operations.
Gradiometer may take the form
either a hand held
device, or a "fish" for offshore
units can also be used in
conjunction with an R.O.V.
or an air bourne vehicle.