Page 179 - Pipeline Pigging Technology

Pipeline Pigging Technology

Fig. 13. Pipewall thickness spool plans.
The British Gas magnetic inspection systems have encountered a wide
range of sometimes difficult commercial applications, often requiring a
degree of adaptation to match certain technical requirements. In the case of
the Forties sea line, it was necessary to employ a unique sensor array in order
to provide BP with specific information on the condition of the line essential
to a subsequent detailed assessment of its structural integrity, thus enabling
certain strategic decisions concerning its future operation to be made.

ACKNOWLEDGEMENTS

The author wishes to record his thanks to those colleagues at the On-Line
Inspection Centre who have assisted him with the completion of this paper,
and for both British Gas and BP for permission to publish it.

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