Use of magnetic inspection pigging provides valuable tool in pipeline maintenance

Journal Article · Mon Aug 27 04:00:00 EDT 1984 · Oil Gas J.; (United States)

OSTI ID:5292391

Holm, W K

Magnetic-inspection pigging plays an important part in the maintenance of mainlines and gathering systems at Natural Gas Pipeline Co. Since 1968, over 2,100 miles of pipeline have been surveyed with the same objective; to verify the integrity of the system and determine where repairs or recoating are needed. Natural Gas Pipeline Co. has two mainline systems. The Amarillo system carries gas from the Texas Panhandle and surrounding area to the Chicago area. Its original 24-in. line was constructed in 1930. The Gulf Coast system from the Texas and Louisiana coastal area originated with a 30-in. line in 1951. Both systems now have multiple loop lines and extended gathering systems. Hydrostatic testing of the lines during construction did not begin until 1965, so in 1968 Natural started a program of hydrostatically testing the older lines. At that time, magnetic inspection pigging was a new technique available for locating pipe wall metal loss. They started using it in portions of the older lines most likely to have corrosion problems.

• Research Organization: Natural Gas Pipeline Co. of America, Joliet, IL
• OSTI ID: 5292391
• Journal Information: Oil Gas J.; (United States), Journal Name: Oil Gas J.; (United States) Vol. 82:35; ISSN OIGJA
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
032000* -- Natural Gas-- Transport
Handling
& Storage
COATINGS
ENERGY SOURCES
ENERGY SYSTEMS
FEDERAL REGION V
FEDERAL REGION VI
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
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NONDESTRUCTIVE TESTING
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PERFORMANCE TESTING
PIPELINES
PROTECTIVE COATINGS
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TRANSPORT
USA