| Description | Report into a magnetic inspection survey carried out in March 1997. Two volumes comprising an inspection summary; metal loss feature report; overall comments; depth based pipeline summary report; glossary of terms; and seven appendices: locating metal loss features and pipeline anomalies, guidance notes for recording excavation of metal loss features, operational details, pipeline details, additional services, pipeline inspection report specification, inspection system performance specification. A third volume concerns the Reinspection/Corrosion growth report for Frigg pipeline 2, assessing the changes that took place since the previous inspections. Includes an executive summary; introduction; qualitative statement; quantitative determination of corrosion growth; overall comments; feature dimensions cross reference; inspection sheet numbers cross reference.
Operations report of the Acoustic survey carried out May 1997, comprising an introduction; survey methods and equipment used; performance appraisal; survey operations; results; conclusions; recommendations; and six appendices: survey station descriptions, data examples, calibration data, tidal data, daily log sheets, and sensor offsets. Includes minor annotations on a post-it note.
Report of the Electromagnetic survey carried out in May 1997, comprising an introduction; results summary; discussion of results; results listing; and drawings.
Report entitled 'Frigg Lines Landfall Summary of Surveys' , monitoring part of the Pipeline 2 which was exposed during a previous year's survey. Comprising an executive summary; introduction; surveys; results; discussion; conclusions; recommendations; references; and two appendices: Beach survey results and Survey station 'FBM' descriptions.
Operational Report, comprising an introduction; acoustic inspection (operation); analysis of the inspection; visual inspection (operation); analysis (of the visual inspection); conclusions/recommendations; and an appendix of temperature and pressure measurements for Ellon Flowlines during 1997 visual inspection. Also a report 'Gas Transportation System 1997 Pipeline External Surveys Summary Report', concerning the landfall, acoustic and visual surveys. |