Products pipeline rehabilitated while on stream

Journal Article · Mon Jan 09 04:00:00 EST 1995 · Oil and Gas Journal; (United States)

OSTI ID:6701544

Denney, A K; Coleman, S L; Pirani, R ^[1]; Webb, N ^[2]; Turner, P ^[3]

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1. John Brown Engineers and Constructors Ltd., London (United Kingdom)
2. Corrolec and Metallurgical Services, Rivonia (South Africa)
3. Teknica (Overseas) Ltd., London (United Kingdom)

Rehabilitation of a 186-mile petroleum products pipeline in southern Africa employed sleeve welding, reinstatement of external coatings, and upgrading of the cathodic-protection system. The pipeline had an unusual history in which the political environment of the region forced its shutdown for 17 years. This shutdown played a major role in its deterioration. The pipeline, which exhibited extensive internal and external corrosion, was a crucial supply route for imported refined products. So important was the line that during the entire repair project, the line could not be shutdown. This technical difficulty was compounded by various practical difficulties as well. The paper describes the shutdown, the coatings and cathodic protection history, pipeline inspection, repair program, sleeving on a live line, developing a procedure, wrapping systems, cathodic protection, practical problems, and hydrostatic testing.

• OSTI ID: 6701544
• Journal Information: Oil and Gas Journal; (United States), Journal Name: Oil and Gas Journal; (United States) Vol. 93:2; ISSN OIGJAV; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
022000* -- Petroleum-- Transport
Handling
& Storage
AFRICA
HISTORICAL ASPECTS
LINING PROCESSES
OPERATION
PERFORMANCE TESTING
PETROLEUM PRODUCTS
PIPELINES
REPAIR
TESTING
TRANSPORT