Sleeve installations speed pipeline defect repair
Repairing defects in pipelines can be a major challenge for pipeline companies or contractors. To reduce cost and eliminate unscheduled shut downs, pipeline operating companies have adopted ``in-service`` repair methods to restore overall integrity of the pipeline without taking it out of service. Interprovincial Pipe Line Co. has undertaken an aggressive approach to this ``in-service`` repair method by using a developed sleeving system for repairing leaking and non-leaking defects. A structural reinforcement sleeve consists of two non-fillet welded collars (one on each side of the defect) and a full encirclement sleeve welded on top of these collars. The annular space between the pipe and sleeve is filled with a hardenable, non-shrinking epoxy. Three different pressure vessel sleeves can be used for repairing certain defects. They can be used in combination with the pre-stressed sleeve or for independent repairs. This paper reviews the performance and installation of these sleeves.
- OSTI ID:
- 175974
- Journal Information:
- Pipeline and Gas Journal, Journal Name: Pipeline and Gas Journal Journal Issue: 12 Vol. 222; ISSN PLGJAT; ISSN 0032-0188
- Country of Publication:
- United States
- Language:
- English
Similar Records
Epoxy-filled repair sleeve installs without shutdown
Encirclement sleeves reduce pipeline repair costs