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PR-244-12700-R01 Effects of Stress on Casing Magnetic Flux Leakage (MFL) Measurements

2018
Pipeline Research Council International (PRCI) contracted C-FER Technologies (1999) Inc. ("C-FER") to conduct a laboratory testing program to determine the Effects of Stress on Casing Magnetic Flux Leakage (MFL) Measurements. Tubing joints with localized defect features were subjected to increments in axial tension to maximum stress levels beyond ...
Jonathan Heseltine, Gang Tao
openaire   +1 more source

The Study on The Application of BP Neural Network Based on Genetic Algorithm Optimization in Magnetic Flux Leakage (MFL) of Rail Top Surface Stripping Defects

2020 39th Chinese Control Conference (CCC), 2020
The stripping defect of rail top surface seriously affects the safety. In order to predict the accurate size of the defect, firstly, a rail MFL car with 3D- Magnetic sensor is designed, and rectangular pit defects are artificially manufactured on the rail. Permanent magnets are used to excitation the detection area of the rail.
Wendong Gong, Yuliang Lin
openaire   +1 more source

Quantification of Complex Defects in Magnetic Flux Leakage (MFL) Testing Using Gradient Gray Level Analysis Based on Least Square Approximation

2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC), 2019
Knowing that realistic defects in materials are not simple but complex which influence inspection results, it is most important that the NDT/E of materials provide quantitative information of defects such as size, length, depth and orientation so as to accurately and efficiency predict a structures integrity and lifespan.
Alimey Fred John   +5 more
openaire   +1 more source

Testing of a Dual Field Magnetic Flux Leakage (MFL) Inspection Tool for Detecting and Characterizing Mechanical Damage Features

2008 7th International Pipeline Conference, Volume 2, 2008
Battelle has developed dual field magnetic flux leakage (MFL) technology for the detection and characterization of mechanical damage to pipelines. The basic principle involves the use of a high magnetic field between 140 and 180 Oersted (11.1 to 14.3 kA/m) and the use of a low magnetic field between 50 and 70 Oersted (4 to 5.6 kA/m).
Alex Rubinshteyn   +2 more
openaire   +1 more source

The Effect of Motion-Induced Eddy Current on High-Speed Magnetic Flux Leakage (MFL) Inspection for Thick-Wall Steel Pipe

Research in Nondestructive Evaluation, 2019
The magnetic flux leakage (MFL) inspection technology is widely used in pipeline industry to detect defects to ensure pipeline safety.
Guanyu Piao   +3 more
openaire   +1 more source

Comparison of In-Line Inspection Service Provider Magnetic Flux Leakage (MFL) Technology and Analytical Performance Based on Multiple Runs on Pipeline Segments

Volume 2: Pipeline Integrity Management, 2012
This paper presents the results of a comparison between three In-Line Inspection (ILI) vendor’s high resolution magnetic flux leakage (MFL) inspections. Between 2009 and 2011, Alliance Pipeline Ltd. (Alliance) commissioned the inspection of a number of pipeline segments, where each vendor inspected all segments.
Guy Desjardins   +3 more
openaire   +1 more source

Investigation of the Criticality of Flux Leakage of a Magnetizer Assembly of a MFL Tool for Oil and Gas Pipelines Inspection

2020
Almost all pipelines need constant monitoring and frequent inspections. This paper presents the design of a magnetizer assembly and experimental simulation investigation of flux leakage. The simulations carried out in a well known multiphysics software to get insights for the designed magnetizer assembly based MFL tool.
Surya Prakash   +5 more
openaire   +1 more source

Magnetic Flux Leakage (MFL) Technology Provides The Industry's Most Precise Pipe Integrity And Corrosion Evaluation, Accurately Characterizing Casing And Tubing Strength. Technology Overview And Case History

SPE Saudi Arabia Section Annual Technical Symposium and Exhibition, 2015
Abstract The Magnetic Flux Leakage (MFL) Technique is the most commonly used technique to inspect large diameter transmission pipelines. A typical MFL inspection system uses permanent magnets to apply an axially oriented magnetic field to the ferromagnetic pipe material.
Wael El Sherbeny   +4 more
openaire   +1 more source

Challenging Pipeline In-Line Inspection (ILI) by using Magnetic Flux Leakage (MFL) Intelligent Pig For Mature Pipeline With 18.2% Dent Due to Third Party Activity

Proc of the Indonesian Petroleum Association 44th Annual Convention and Exhibition, 2021
Pertamina Hulu Energi - Offshore North West Java (PHE -ONWJ) field has been operating for more than 45 years, located in offshore north of West Java Island with an area of 8,300 km2. Traffic around PHE-ONWJ field has increased significantly compared to the initial stage. It is important to note that ONWJ field area is close to Jakarta.
openaire   +1 more source

PR-337-063508-R01 Dual Field Magnetic Flux Leakage (MFL) Inspection Technology to Detect Mechanical Damage

2013
This report details the development and testing of a dual magnetization in-line inspection (ILI) tool for detecting mechanical damage in operating pipelines, including the first field trials of a fully operational dual-field magnetic flux leakage (MFL) ILI tool.
openaire   +1 more source

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