TPT September 2013

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September 2013 59
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Integrated pipe testing solutions
DRILLING site or pipeline accidents
are usually associated with expensive
property loss and serious environmental
damage. High- and regular-quality
products are now more important than
ever. Inspection systems used at the
pipe manufacturing stage have become
a key factor in the quality assurance
process, and ultrasonic and eddy current
phased array techniques are leading the
way towards an unprecedented level
of sensitivity and performance for pipe
industry inspection systems.
The Olympus systems are designed
to inspect seamless and welded pipes,
either with plain or upset ends. The
system can inspect pipes with diameters
ranging from 60.3mm to 406.4mm (or
more) and with wall thicknesses of
3 to 60mm. This turnkey solution can
be customised according to individual
production-line requirements, in terms
of inspection capacity and production
throughput.
Inspection modes can easily be
reconfigured to meet the specific needs
of any product. These modes include
inspection of longitudinal, transversal
and oblique-angled defects as well
as lamination discontinuities. The
inspection of oblique defects can be
configured in any direction from 0 to
90 degrees, allowing for the inspection
of several angles at the same time
and surpassing the demands of all
existing industry-established codes
and specifications. The system also
performs a wall-thickness measurement
and recreates an accurate 2D data map
of the inspected pipe.
The system is also capable of
inspecting all pipe length including
the ends, due to a specific processing
algorithm. With this feature, a full pipe
inspection can be achieved without the
need for end-of-tube retesting, thereby
reducing production-line layout needs
as well as personnel requirements.
By using long phased array probes, a
helical pitch of up to 120mm/revolution
can be attained. This is a very high
inspection speed, when compared to
conventional inspection technology.
Also, this type of system has consistently
demonstrated the highest repeatability
in the industry, passing the qualification
tests of all major oil companies and
international standards.
A combined inspection cycle of full-
body and weld inspection for ERW
pipe is also available. Using this
configuration, the system performs
the full-body inspection of a pipe while
detecting the weld line position and
deviation. Once the full-body inspection
is complete, the weld is automatically
repositioned at the top of the pipe and
a weld-dedicated inspection cycle is
performed using specially designed
ERW inspection phased array probes.
This configuration optimises the
inspection of each area of the pipe, and
most importantly, provides a dedicated
weld inspection.
When a double inspection technique is
required, phased array and eddy current
array inspection can be combined on
the same system.
Olympus NDT – USA
Website: