Alyeska program allows pig performance comparison

The approach used by Alyeska Pipeline Service Co. to assess in-line inspection data in its pipeline system is described. The methods used in the Alyeska program permits one to optimize data available and compare them statistically with measurements of actual external corrosion. Results of the analys...

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Bibliographic Details
Published in:The Oil & gas journal 1997-02, Vol.95 (6), p.52-59
Main Authors: VIETH, P.H, RUST, S.W, JOHSON, E.R, COX, M.L
Format: Magazinearticle
Language:English
Subjects:
Accuracy
Applied sciences
Cathodic protection
Corrosion
Crude oil, natural gas and petroleum products
Decision making
Energy
Exact sciences and technology
Excavation
Fuels
Inspections
Oil service industry
Pipelines
Q1
Risk management
Statistical analysis
Studies
Technology
Transportation and distribution of crude oils and liquid petroleum products. Ships. Pipelines. Terminals. Service stations
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Summary:The approach used by Alyeska Pipeline Service Co. to assess in-line inspection data in its pipeline system is described. The methods used in the Alyeska program permits one to optimize data available and compare them statistically with measurements of actual external corrosion. Results of the analyses can be used to quantify the performance of past and future in-line inspections (ILI) and to quantify the added value of additional excavations and inspections. The ILI surveys database has provided the information necessary to compare the performance of different pigs in the pipeline.
ISSN:0030-1388
1944-9151