Page 458 - Pipeline Pigging Technology

Risk assessment and inspection for integrity

3. The tangible benefits of prevented failures in the medium term are
estimated to represent 70% of the programme cost in the last three years.
4. In addition to the benefits of prevented failures, the intangible benefits
of confidence in critical parts of our pipeline system and a demonstrated pro-
active attitude to preventing failures are sufficient to consider the overall
programme as cost effective.

REFERENCES

1. B.Sutor and W.C.Rappel, 1990. Corrosion may close Alaska's oil pipe,
Toronto Star, 5th February 5.
2. Pipeline Safety Re-authorization Act of 1988, Public Law 100-561, 100th
Congress, Sec. 304, 31st October, 1988.
3. National Energy Board Report, "In the Matter of an Accident on 19th
February, 1985, near Camrose, Alberta "June 1986, p.31.
4. T.M.Sowerby, 1990. Pipeline inspection first stage in rehabilitation, Pipe-
line, October, p.2.
5. RJohn, 1990. External pipeline rehabilitation, Pipeline, October, p.4.
6. Second annual Pipeline Rehabilitation seminar, Houston, Texas, Septem-
ber 1990.
7. D .A.Bacon, 1990. Enron's approach and experience in pipeline rehabilita-
tion, Second annual Pipeline Rehabilitation seminar, Houston, Texas,
p. 153.
8. G.Avrin and R.I.Coote, 1987. On-line inspection and analysis for integrity,
Pacific Coast Gas Association Transmission Conference, Salt Lake City,
Utah, March.
9. G.Clerehugh and A.E.Knowles, 1979. The experience of the British Gas
Corporation in the use of on-line inspection equipment on high pressure
gas transmission pipelines, 14th World Gas Conference, Toronto, Ontario,
p.8.
10. British Gas Engineering Standard BGC/PS/OLI 1, Code of practice for
carrying out on-line inspection of gas transmission systems, British Gas
Corporation, London, UK, 1983, p.9.
11. R.MJamieson and J.S.MacDonald, 1986. Pipeline monitoring, Proc. 9th
annual Energy Sources Technology Conference and Exhibition, New
Orleans, Louisiana, February. ASME Petroleum Div., 3, pp.113-118.
12. M.J.Davis, 1988. Tenneco's efforts for verifying pipeline integrity, AGA
Distribution/Transmission Conference, Toronto, Ontario, May.

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