PHMSA Research and Development
Time: 11/23/2009 10:14 PM

Development of Dual Field MFL Inspection Technology to Detect Mechanical Damage

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Main Objective

The work proposed here will establish the capability of the dual magnetic field MFL technology to detect mechanical damage and discriminate between critical and benign anomalies. This project will entail building a dual magnetization MFL tool and testing in an operating pipeline.

Public Abstract

The Pipeline Research Council International, Inc. (PRCI) proposes to conduct research which will evaluate the capability of in-line inspection (ILI) to detect and characterize mechanical damage defects. The primary objective of the research is to provide guidance to the pipeline industry regarding the use of ILI to prioritize excavation and repair of mechanical damage. The secondary objective is to influence research on related topics such as the development of mechanical damage fitness-for-purpose models. The main scope is to evaluate the use of magnetic flux leakage (MFL) technologies although other sensor methods will be considered for applicability to meet the primary objective. PRCI proposes a consolidated program which entails analysis of a prototype dual field MFL tool as well as analysis of commercially available MFL equipment. The dual field tool has shown promising results in laboratory/bench scale testing and this proposal aims to evaluate the tool in actual operating pipeline conditions. As a separate but parallel activity, PRCI will examine the ability of existing commercial MFL equipment which have recently been shown to provide enhanced capabilities for the detection of mechanical damage and may serve as an intermediary approach to defect management until emerging technologies such as dual field MFL can be fully developed. This project will define the capabilities, attributes, and deficiencies of each inspection methodology as it pertains to inspection for mechanical damage.

Quarterly Status Reports
Management - Project administration and status reporting - Public Page
Management - Project administration and status reporting - Public Page
Management – Project administration and status reporting - Public Page
Management – Project administration and status reporting - Public Page
Management – Project administration and status reporting - Public Page
Management – Project administration and status reporting - Public Page
Management – Project administration and status reporting - Public Page
Management - Project administration and status reporting - Public Page
QUARTERLY REPORT – PUBLIC PAGE - Development of Dual Field MFL Inspection Technology to Detect Mechanical Damage DTPH56-06-T-000016(Revised 8/12/2009)
Report is a Public 8th Quarterly Report.
Management – Project administration and status reporting - Public Page
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