Urethane coatings rehabilitate large crude oil pipeline

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Pipeline and Gas Journal

OSTI ID:147971

Kresic, W ^[1]

---

1. Interprovincial Pipe Line Inc., Edmonton, Alberta (Canada)

Interprovincial Pipe Line Inc. (IPL) provides a vital transportation link for moving liquid petroleum resources from oil-producing areas of western Canada to refining centers and markets in eastern canada and the midwestern US. Together with Lakehead Pipe Line Co., Inc., the pipeline system consists of about 7,600 miles of pipe. Approximately 1.6 million bpd of crude oil and liquid hydrocarbons are transported by the system. Along with high-resolution inspection data, an in-house engineering critical assessment process based on Battelle`s NG-18 surface flaw equation was developed to identify corrosion anomalies needing structural reinforcement sleeve repairs. A majority of ht non-critical anomalies remained unearthed and were exposed to possible future growth which could become critical. Several rehabilitation methods were considered including on-going sleeve repair, selective pipe replacement, and coating reconditioning. Economics and logistics of sleeving programs and selective pipe replacement were well known at IPL. However, aspects of replacing a coating system over a relatively long length of pipe were not completely known. Preliminary cost estimates favored replacement of the coating over a massive sleeving program or pipe replacement. To gain further insight, IPL began a two-year pilot program to research long length coating replacement feasibility. Two sections of Line 3 ultimately were rehabilitated in this manner. This paper reviews the project.

• OSTI ID: 147971
• Journal Information: Pipeline and Gas Journal, Journal Name: Pipeline and Gas Journal Journal Issue: 10 Vol. 222; ISSN PLGJAT; ISSN 0032-0188
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
CANADA
CORROSION
COST BENEFIT ANALYSIS
LINING PROCESSES
PETROLEUM
PETROLEUM INDUSTRY
PIPELINES
PROTECTIVE COATINGS
REPAIR
RETROFITTING
TRANSPORT
URETHANE