Integripedia Topic
Magnetic Flux Leakage (MFL)
Magnetic Flux Leakage (MFL) is a nondestructive examination technique that uses electromagnetism to inspect for flaws or material degradation in steel structures. In the oil and gas industry, it is often used to search for flaws in piping and pipelines, as well as aboveground storage tank floors. MFL uses magnets to temporarily magnetize the structure. If there are flaws present, the magnetic field created will show distortions, signaling the presence of things like corrosion, pitting, and wall loss.
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Related Topics
- Acoustic Emission Testing (AET)
- Advanced Ultrasonic Backscatter Technique (AUBT)
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BlogSeptember 13, 2018 By Berg Engineering
Nondestructive testing (NDT) careers are on the rise in today’s economy. These fields are constantly advancing, and there is an ever-growing need for technicians, quality assurance specialists and inspectors as infrastructure in the United States...
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November/December 2017 Inspectioneering JournalBy Elizabeth Allen at DNV GL, and Michelle Havlock at DNV GL
This article explains the Statistically Active Corrosion Assessment, which is a tool for determining appropriate and realistic corrosion growth rates which can assist pipeline operators in optimizing the value of in-line inspection data.
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March/April 2017 Inspectioneering JournalBy Matt Ellinger at DNV GL
The purpose of this article is to describe the various in-line inspection (ILI) technologies that are currently available to the market. The pros, cons, and applicability of each type of tool will be discussed in greater detail.
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July/August 2015 Inspectioneering JournalBy Robert Frater at Engineering & Inspection Services, LLC
Refinery, petrochemical, and storage tank operators are responsible for properly cleaning facility tanks on a periodic maintenance basis, typically in 20 to 30 year increments. This article provides a suggested “checklist” of inspection...
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BlogJune 1, 2015 By Nick Schmoyer at Inspectioneering
Nondestructive Testing (NDT) makes up the majority of testing performed in our industry. There many different types of nondestructive testing techniques. Each method has its own advantages and disadvantages; each can detect different types of flaws....
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BlogApril 20, 2015
We talk about heat exchangers quite a bit here on Inspectioneering, most recently in the January/February issue of the Journal. This is because heat exchangers are vital pieces of equipment in nearly every type of plant or facility.
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September/October 2014 Inspectioneering JournalBy John Tiratsoo at Pipelines International
The pigging industry has developed a tremendous range of techniques and technologies, and it is probably fair to say that there are few pipelines in the world that cannot be cleaned and inspected, although the success of such operations will often...
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January/February 2014 Inspectioneering JournalBy Bob Lasser at Imperium, Inc., and Daniel Oehl at Imperium, Inc.
Technicians inspecting oil & gas installations and petrochemical plants employ a wide variety of nondestructive testing (NDT) techniques. A new technology has recently been developed that utilizes a real-time portable imaging device which has...
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May/June 2002 Inspectioneering JournalBy Greg Alvarado at Inspectioneering Journal, and C.P. Hsiao
We have discussed various factors that can affect the reliability of NDE techniques (i.e., probability of detection - POD and sizing accuracy) in Part 1. In general, it is difficult to quantify these uncertainties. In fact, it is impossible to fully...
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