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Overview of In-line Inspection (ILI)
In-line Inspection (ILI) involves the evaluation of pipes and pipelines using “smart pigs” (both tethered and non-tethered) that utilize non-destructive examination techniques to detect and size internal damage. ILI measures and records irregularities in pipelines including corrosion, cracks, deformations, or other defects.
ILI is a common practice throughout the oil and gas industry and has proven invaluable for examining extensive pipelines. It makes inspecting the condition of long stretches of pipelines, a task that used to be incredibly expensive and time consuming, far more easy and economical.
There are several different types of smart pigs utilized in ILI activities, each with its own set of advantages and disadvantages. Some are more effective at detecting certain types of corrosion or damage in different types of pipes, depending on their NDE capabilities. More recently though, some manufacturers are combining the various functions of these separate tools into one. This way a single tool can now be used to detect several different types of damage, making it more efficient and effective.
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Hydrostatic Testing Nondestructive Testing (NDT) Visual Inspection
Articles about In-line Inspection (ILI)
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BlogJanuary 9, 2019 By John Reynolds at Intertek
The 2019 API Inspection and Mechanical Integrity Summit will be kicking off later this month in Galveston, TX. This four-day event will begin with 14 high level training courses offered Monday, January 28th, and then a top notch conference and...
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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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Gains with Advanced Data Assessment in ILI: Leveraging pipeline data to eliminate risk, prioritize and schedule necessary repairsMay/June 2015 Inspectioneering JournalBy Ian D. Smith, P.Eng. at Quest Integrity Group, and Michael McGee at Quest Integrity Group
For traditional in-line inspection (ILI) vendors, considering 21.4 miles of a piggable 4” diesel pipeline is typically not a big deal. However, significant threats like 3rd party damage and external corrosion seem to come with the territory in...
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Combining High Resolution In-Line Geometry Tools and Finite Element Analysis to Improve Dent AssessmentsMay/June 2015 Inspectioneering JournalBy Rhett Dotson, P.E. at Stress Engineering Services
Historically, regulations regarding dent severity have been governed by one of two metrics: dent depth or strain. In the case of the former, plain dents with a depth up to 6% of the nominal diameter are permitted in both gas and liquid pipelines....
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May/June 2015 Inspectioneering JournalBy Vibha Zaman, P.E. at Asset Optimization Consultants, and Peter Dsouza at LyondellBasell
Verifying pipeline integrity is particularly challenging due to the difficulty of pipeline access, as well as the limitations in available technology to perform subsea wall thickness inspections. These challenges require action rather than reaction.
Videos related to In-line Inspection (ILI)
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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...
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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.
Downloads & Resources related to In-line Inspection (ILI)
Events related to In-line Inspection (ILI)
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March 1 - 5 2021Location: Banff, Alberta, Canada
Hosted By: IPEIA
Dates: March 1, 2021 - March 5, 2021
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July 9 2020Location: Online Webinar
Hosted By: RefComm
Dates: July 9, 2020
Online Events -
November 16 - 19 2020Location: Denver, Colorado, United States
Hosted By: American Petroleum Institute
Dates: November 16, 2020 - November 19, 2020
Conferences Exhibitions & Trade Shows Standards & Committee Meetings -
July 8 2020Location: Online Webinar
Hosted By: Floodlight Software
Dates: July 8, 2020
Online Events -
February 22 - 26 2021Location: Houston, Texas, United States
Hosted By: Clarion Technical Conferences
Dates: February 22, 2021 - February 26, 2021
Conferences Exhibitions & Trade Shows Training Courses -
December 9 - 10 2020Location: College Station, Texas, United States
Hosted By: ASME
Dates: December 9, 2020 - December 10, 2020
Conferences Exhibitions & Trade Shows -
October 12 - 15 2020Location: Nashville, Tennessee, United States
Hosted By: American Petroleum Institute
Dates: October 12, 2020 - October 15, 2020
Conferences Exhibitions & Trade Shows Seminars & Workshops
News related to In-line Inspection (ILI)
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NewsClarion Technical Conferences, April 30, 2020
The 33rd annual Pipeline Pigging and Integrity Management (PPIM) Conference and Exhibition is now accepting papers for the 2021 event.
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