Integrity assessment plan for PNL 300 area radioactive hazardous waste tank system. Final report

An Innovative Approach for Pipeline Repairs

4th International Pipeline Conference, Parts A and B ◽

10.1115/ipc2002-27310 ◽

2002 ◽

Author(s):

Don Robertson ◽

Wayne Russell ◽

Nigel Alvares ◽

Debra Carrobourg ◽

Graeme King

Keyword(s):

Relational Databases ◽

Cost Effective ◽

Metal Loss ◽

Final Report ◽

Integrity Assessment ◽

Maintenance Program ◽

Oil Pipelines ◽

New Methodologies ◽

Reduced Costs

A strategic combination of integrity software, relational databases, GIS, and GPS technologies reduced costs and increased quality of a comprehensive pipeline integrity assessment and repair program that Greenpipe Industries Ltd. completed recently on three crude oil pipelines—two 6-inch and one 8-inch—for Enbridge Pipelines (Saskatchewan) Inc. Greenpipe analyzed metal loss data from recent in-line inspection logs, calculated real-world coordinates of defects and reference welds, prioritized anomalies for repair taking environmental risks into account, and prepared detailed dig sheets and site maps using PipeCraft™, Greenpipe’s advanced GIS-based pipeline integrity-maintenance software package. GPS technology was used to navigate to dig sites and the accuracy of the GPS approach was compared with traditional chainage methods. Pipelines were purged and all defects were cut out and replaced by new pipe during a two-day shutdown on each pipeline. A comprehensive set of data, including high-accuracy GPS location of anomalies, reference welds, and replacement pipe welds, was collected at each dig site and entered into the PipeCraft relational database. After all repairs were completed, the client was provided with a GIS-based electronic final report, allowing point-and-click access to all data collected in the field, including in-line inspection logs, dig information sheets and as-built drawings. The new methodologies employed on this project resulted in a high quality, comprehensive and cost-effective integrity maintenance program.

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IAEA Coordinated Research Projects on Master Curve Technology: An Overview

Volume 7: Operations, Applications and Components ◽

10.1115/pvp2007-26351 ◽

2007 ◽

Cited By ~ 2

Author(s):

Ki-Sig Kang

Keyword(s):

Test Specimen ◽

Master Curve ◽

Structural Integrity ◽

Loading Rate ◽

Final Report ◽

Research Projects ◽

Integrity Assessment ◽

Technical Issues ◽

Surveillance Specimens ◽

Reactor Pressure

The IAEA has sponsored a series of Coordinated Research Projects (CRPs) that have led to a focus on reactor pressure vessel (RPV) structural integrity. In the previous CRP on the application of the Master Curve (MC), three key areas were identified to need further works. These three tasks are: (1) test specimen bias, constraint, and geometry effects on the measurement and application of To values; (2) effects of loading rate up to impact loading conditions on To; and (3) potential changes in the shape of the MC for highly embrittled RPV materials. These three areas are focused on the new CRP (here below CRP-8). A new CRP is follow-on to previous successful CRPs on resolving technical issues associated with application of the MC approach. Overall objectives of CRP-8 include: 1) Better quantification of fracture toughness issues related to testing surveillance specimens for application to RPV integrity assessment, and 2) Development of approaches for addressing MC technical issues in integrity evaluation of operating RPVs. 15 organizations from 11 countries participate in the CRP and the final report will be issued in the end of 2008.

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