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A computerized  inspection system











              A COMPUTERIZED                  INSPECTION

                     SYSTEM        FOR      PIPELINES



        INTRODUCTION


        This paper  describes Total Oil Marine's computerized inspection system
      for  pipelines  (CIS-PIPELINE), which was developed  by Scicon  and  success-
      fully implemented  in August, 1986.
        The  paper  first  discusses  Total  Oil  Marine's  philosophy  for  pipeline
      inspection  and  why  the  decision  was  taken  to  develop  a  computerized
      system. It identifies the  requirements  and highlights the  expectations.  An
      overview  of  the  system is given with  samples of the  reports and analyses
      available.  This  is  followed  by  a  discussion  of  how  the  system  met  the
      expectations  and the  additional benefits which have come from  use of  the
      system.




        BACKGROUND


        Total   Oil Marine's pipeline inspection activities


        As  operator  of  the  Frigg  Gas Transportation  System, Total  Oil  Marine
     (TOM) has the responsibility for running two parallel 32-in subsea  pipelines,
     each 362km long, between the Frigg field and the shore terminal at St. Fergus
     in the NE of Scotland.
        The recent development of the North Alwyn field has added a further  110-
     km,  24-in gas line from North Ahuyn  to Frigg,  a  15- km,  12-in oil line from
     North Ahuyn to Ninian and a number of flow lines on the Ahuyn field.
        The principal objectives of the inspection  programme are to ensure that
     pipelines  are  at  all times in a  safe  operating  condition  and meet  statutory
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