Structural Repair of Steel Piping by In-Situ Sleeving of Nanostructured Materials

Project Categories

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• Onshore Transmission Pipeline
• Pipeline Materials
• Repair/Rehabilitation

Main Objective

The objective of Phase I is to demonstrate that the mature nanotechnology-based structural crack repair concept can be adapted for application as an in-field pipeline repair tool. This will be accomplished by establishing the overall technical and economic feasibility via proof-of-concept degraded pipe plating, repair integrity characterization, preliminary burst testing, and a first-pass cost analysis.

Public Abstract

This is the application of a mature nanotechnology-based crack arrest/structural repair technology as a novel in-field pipeline repair tool. The repair would be comprised of a thin layer or sleeve of electrodeposited nanocrystalline material applied to the damaged region of the pipe in order to utilize the "crack filling" characteristic of the process. The concept proposed has already been successfully employed for in-situ structural repair / crack bridging of corroded steam generator tubing in nuclear stations across North America and is presently in development for application to the repair of degraded oil and gas heat exchangers in Saudi Arabia. This ASME-approved electroformed nanomaterial provides superior strength and toughness and thus allows for design/operating conditions to be accommodated wit significantly less material build-up and with far superior bonding to the pipe surface than would normally be achievable with conventional full-encirclement sleeve. The objective of Phase I is to demonstrate that the mature nanotechnology-based structural crack repair concept can be adapted for application as an in-field pipeline repair tool. This will be accomplished by establishing the overall technical and economic feasibility via proof-of-concept degraded pipe plating, repair integrity characterization, preliminary burst testing, and a first-pass cost analysis.

Final Report

Integran Tech DTRT57-08-c-10070 final report

Integran_Tech_DTRT57-08-c-10070_final_report.pdf (255,579 bytes) [View] [Download/Save...]

Quarterly Status Reports

Bimonthly Status Report1 17Nov08b

Bimonthly_Status_Report1_17Nov08b.doc (363,520 bytes) [View] [Download/Save...]

2nd Interim Report

Bimonthly_Status_Report2_15Jan09.doc (960,000 bytes) [View] [Download/Save...]

this is the third progress report

Bimonthly_Status_Report3_10Mar09.doc (3,261,952 bytes) [View] [Download/Save...]