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PRCI PR-218-9308
- Pipeline In-Service Relocation Engineering Manual
- Report / Survey by Pipeline Research Council International, 12/31/1994
- Publisher: PRCI
$425.00$849.00
L51717e
Kiefner & Associates, Inc.
Need: The practice of "relocation" of a pipeline while "in-service" increases the longitudinal stresses in the relocated section of pipeline which may result in pipeline failures. On October 22, 1991, the DOT Office of Pipeline Safety (OPS) issued an "Alert Notice" to US Pipeline operators urging them to conduct analyses prior to moving a pipeline, regardless of whether the line is in-service during the operation or not; to determine the extent to which a pipeline may be safely moved, considering the material toughness as a factor; and specific procedures for the operation. An incident associated with pipeline movement for which no engineering assessment was performed will probably receive the scrutiny of regulators. Moreover, the relocation is apt to be blamed for any subsequent incident, with or without cause. Although the probability of incidents appears to remain low, the liability has perhaps increased if an incident results in personal injury, property damage, or environmental damage. Operators should consider these risk factors, and whether or not to move the line in-service.
Benefit: The Pipeline In-Service Relocation Engineering Manual was created to provide a comprehensive manual for engineering a safe relocation on an operating pipeline in-service. All industry guidelines, standards, proceedings, and research reports were compiled, compared and distilled into recommendations for designing a safe line relocation while "in-service". This manual supplements existing guidelines such as API RP-1117 rather than superseding them.
Result: This report provides comprehensive and detailed information for pipeline operators to safely relocate a pipeline section while in-service through proper assessment of stresses and guidelines for the appropriate selection of relocation techniques and methods. This will avoid unexpected operational costs, provide guidance for "operator qualification" for pipeline relocation of in-service pipelines and minimize liabilities to the operator. The manual has been used by Pipeline Research Council International, Inc. (PRCI) member companies to generate company standards and procedures related to in-service relocation of pipelines.
Kiefner & Associates, Inc.
Need: The practice of "relocation" of a pipeline while "in-service" increases the longitudinal stresses in the relocated section of pipeline which may result in pipeline failures. On October 22, 1991, the DOT Office of Pipeline Safety (OPS) issued an "Alert Notice" to US Pipeline operators urging them to conduct analyses prior to moving a pipeline, regardless of whether the line is in-service during the operation or not; to determine the extent to which a pipeline may be safely moved, considering the material toughness as a factor; and specific procedures for the operation. An incident associated with pipeline movement for which no engineering assessment was performed will probably receive the scrutiny of regulators. Moreover, the relocation is apt to be blamed for any subsequent incident, with or without cause. Although the probability of incidents appears to remain low, the liability has perhaps increased if an incident results in personal injury, property damage, or environmental damage. Operators should consider these risk factors, and whether or not to move the line in-service.
Benefit: The Pipeline In-Service Relocation Engineering Manual was created to provide a comprehensive manual for engineering a safe relocation on an operating pipeline in-service. All industry guidelines, standards, proceedings, and research reports were compiled, compared and distilled into recommendations for designing a safe line relocation while "in-service". This manual supplements existing guidelines such as API RP-1117 rather than superseding them.
Result: This report provides comprehensive and detailed information for pipeline operators to safely relocate a pipeline section while in-service through proper assessment of stresses and guidelines for the appropriate selection of relocation techniques and methods. This will avoid unexpected operational costs, provide guidance for "operator qualification" for pipeline relocation of in-service pipelines and minimize liabilities to the operator. The manual has been used by Pipeline Research Council International, Inc. (PRCI) member companies to generate company standards and procedures related to in-service relocation of pipelines.
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