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Overview of Intelligent Pigging
Intelligent Pigging is an inspection technique whereby an inspection probe, often referred to as a smart pig, is propelled through a pipeline while gathering important data, such as the presence and location of corrosion or other irregularities on the inner walls of the pipe.
Traditionally, pigging was used purely as a way to clean pipelines. The pig was simply placed in one end of a pipeline and pushed through the line by the product flow. It scrapes the sides of the pipe as it travels, removing dirt and debris as it goes. [2,3]
What makes intelligent pigging different is that smart pigs are capable of performing advanced inspection activities as they travel along the pipe, in addition to just cleaning it. [1] Smart pigs use nondestructive examination techniques such as ultrasonic testing [1,2,4,5] and magnetic flux leakage testing to inspect for erosion corrosion, metal loss, pitting, weld anomalies, and hydrogen induced cracking, among others. [2,5] They are also able to gather data on the pipeline's diameter, curvature, bends, and temperature. [2]
Smart pigging provides a number of advantages over traditional forms of pipeline inspection. It allows pipelines to be cleaned and inspected without having to stop the flow of product.[3] It also allows the a pipeline to be completely inspected without having to send inspectors down its entire length. Finally, it provides cleaning and inspection services at the same time, saving companies both time and money.
References
- http://osfm.fire.ca.gov/pipeline/pdf/conference/inlineinspection.pdf
- http://www.rigzone.com/training/insight.asp?c_id=19&insight_id=310
- https://en.wikipedia.org/wiki/Pigging
- http://www.dacon-inspection.com/services/pipeline-services/pipeline-inspection-intelligent-pigging/
- https://primis.phmsa.dot.gov/comm/FactSheets/FSSmartPig.htm
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Articles about Intelligent Pigging
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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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September/October 2016 Inspectioneering JournalBy Tim Haugen at Quest Integrity Group
Although all ultrasonic smart pigging providers claim the ability to detect wall thinning and tube deformations to some degree, the inspection surface coverage, resolution, minimum wall thickness detection and reporting capabilities may vary drastically from one service provider to the next. Knowing your provider’s capabilities is crucial for ensuring the integrity of your assets, as one refinery recently discovered.
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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 depend on the available budget.
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May/June 2014 Inspectioneering JournalBy Jeremiah Wooten at Inspectioneering, LLC.
The following interview with Rich Roberts provides answers to some of the questions our readers have about small, specially designed pigs carrying NDE technologies that can inspect nearly every area of a tube from the coils interior surface.
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Partner Content
InVista is a lightweight, hand-held ultrasonic in-line inspection tool (intelligent pig) capable of detecting pipeline wall loss and corrosion in unpiggable or difficult-to-inspect pipelines. The pipeline geometry inspection data captured by the InVista tool is exceptionally powerful when combined with the LifeQuest™ Pipeline fitness-for-service capabilities, providing an integrated solution set for the pipeline industry.
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November/December 2013 Inspectioneering JournalBy Tyler Alvarado at Inspectioneering
Inspectioneering recently had the privilege of speaking with Tom Wanzeck, Vice President of Integrity Services with Willbros Group, Inc. Tom spent more than 20 years managing assets on the owner-operator side before making the leap to the service industry, in which he now manages and facilitates world-class asset and pipeline integrity management programs for clients.
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May/June 2013 Inspectioneering JournalBy Richard D. Roberts at Quest Integrity Group
Refineries and chemical plants own and operate numerous process heaters (e.g. gas reformers, CCRs, etc.) as part of the standard assets throughout the facilities. Many heater coil configuration designs are flanged at both ends; however, there are also coil designs which contain common headers, linking the individual coil passes together at the inlet, outlet, or even at both ends in some cases.
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November/December 2012 Inspectioneering JournalBy Richard D. Roberts at Quest Integrity Group
Various fired heater designs in refineries and chemical plants contain common headers (e.g. Arbor coil configurations, CCRs, etc.) as part of their overall serpentine coil design. Accessing the interior of individual coils through the common header is challenging; however, advanced engineering firms and mechanical decoking companies have developed unique common header snorkel delivery systems.
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September/October 2012 Inspectioneering JournalBy Richard D. Roberts at Quest Integrity Group
The refining industry has applied ultrasonic-based intelligent pigging to inspect serpentine coils in fired heaters since the 1990s. Today, thousands of serpentine coils in fired heaters are inspected annually at process facilities around the globe.
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May/June 2012 Inspectioneering JournalBy Clay Goudy at GE Industrial Solutions
A self-propelled in-line inspection tool tested at Electric Power Research Institute and utilized in Europe can traverse a complex piping configuration and discriminate areas of metal loss. This tool is becoming available to inspect traditionally unpiggable piping such as: buried piping at nuclear plants, oil and gas terminals, refineries, industrial sites, cased pipeline crossings and distribution pipelines.
Companies
Quest Integrity Group is a global leader in the development and delivery of asset integrity management and asset reliability solutions for our clients in the refining and chemical, pipeline, syngas and power industries. Our services include furnace tube inspection for the refining and chemical industries, in-line inspection for the pipeline industry, steam reformer tube inspection for the syngas industry, as well as fitness-for-service assessment, remaining life assessment, structural integrity, failure analysis and materials consulting for various industries including the power industry. We specialize in condition assessment for fired heater coils, unpiggable pipelines, steam reformer tubes, storage tanks, gas turbines and other assets.
Quest Integrity Group is a global leader in the development and delivery of asset integrity management and asset reliability solutions for our clients in the refining and chemical, pipeline, syngas and power industries. Our services include furnace tube inspection for the refining and chemical industries, in-line inspection for the pipeline industry, steam reformer tube inspection for the syngas industry, as well as fitness-for-service assessment, remaining life assessment, structural integrity, failure analysis and materials consulting for various industries including the power industry. We specialize in condition assessment for fired heater coils, unpiggable pipelines, steam reformer tubes, storage tanks, gas turbines and other assets.
Videos related to Intelligent Pigging
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Sponsored Video Published on June 14, 2017Effective pipeline integrity management has been problematic for a large number of pipelines that were not designed for in-line inspection. Quest Integrity understands the complexities involved with this challenging segment and offers a comprehensive pipeline integrity management solution.
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Sponsored Video Published on May 15, 2017InVista Subsea, an advanced ultrasonic ILI tool from Quest Integrity, provides a solution for challenging and difficult-to-inspect subsea pipelines.
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Events related to Intelligent Pigging
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May 22 - 25 2018Location: San Antonio, Texas, United States
Hosted By: AFPM
Dates: May 22, 2018 - May 25, 2018
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April 24 - 25 2018Location: St. Louis, Missouri, United States
Hosted By: American Petroleum Institute
Dates: April 24, 2018 - April 25, 2018
Conferences Exhibitions & Trade Shows Seminars & Workshops Symposiums -
January 28 - 31 2019Location: Galveston, Texas, United States
Hosted By: American Petroleum Institute
Dates: January 28, 2019 - January 31, 2019
Conferences Exhibitions & Trade Shows Training Courses -
November 13 - 14 2018Location: Houston, Texas, United States
Hosted By: KCI World
Dates: November 13, 2018 - November 14, 2018
Conferences Exhibitions & Trade Shows -
June 11 - 13 2018Location: Houston, Texas, United States
Hosted By: NACE
Dates: June 11, 2018 - June 13, 2018
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News related to Intelligent Pigging
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NewsJune 15, 2017
"Unpiggable" pipelines are a thing of the past. With Quest Integrity's suite of in-line inspection tools, you can be confident in the state of your pipeline, no matter what.
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