Page 313 - Pipeline Pigging Technology

Pipeline Pigging Technology

Fig. 10. PIT prior to lowering into the subsea manifold at Taranto.

of the conventional cable, and the same reel as used for the 2000-m conven-
tional cable can store the 6000-m optical cable. The reel will be equipped with
optical rotary joints for uninterrupted rotation.
The PIT 6000, to be completed in the second half of 1991, will be suitable
for inspecting pipelines from l6in diameter. The tool will be capable of
passing both 3D and mitred bends, and the number of ultrasonic probes has
been increased to 32, in order to provide more circumferential coverage.
Once the PIT 6000 has been introduced, expensive offshore deployment will
no longer be necessary for pipelines with lengths up to 6000m.

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