Pipeline Pigging Q&A
World Pipelines asked a number of companies to discuss issues regarding pigging for oil and gas midstream pipelines. Quest Integrity's Dan Revelle offers insight on the industry.
Custom ILI Tool Inspects Unpiggable Multi-Diameter Pipeline
Special report by Quest Integrity, featured in World Pipelines.
Baseline Inspection Provides Head Start on Heater Reliability and Longevity
Special report by Quest Integrity, featured in Hydrocarbon Engineering.
A Closer Inspection - How Highly Developed Inspection Tools are Used to Identify Tubular Damage
By: Charles Thomas and Dan Drabble, Quest Integrity
As seen in the March/April 2017 issue of World Fertilizer Magazine.
My Pipes are Corroding! When Should I Repair?
By: Michael Turnquist, M.Sc., Quest Integrity
As seen in the November/December 2016 issue of Inspectioneering Journal.
Optimizing Critical Fired Heaters, Now Easier than Ever
Special report by Quest Integrity, featured in the May 2017 issue of Chemical Engineering.
ILI and Hydrostatic Testing - Mastering Multitasking
By: Rusty Jackson, Manager, Quality & Training at Quest Integrity
As seen in the October 2016 issue of World Pipelines Magazine.
Hydrostatic testing is often the preferred method of inspection for ageing pipelines, sometimes due to limited data. This has raised questions about the ability of inspection tools to successfully navigate the pipeline. In the case studies presented in this article, an ultrasonic inline inspection (ILI) was performed in conjunction with the hydrotest.
Choosing the Right Smart Pigging Technology - Lessons Learned
By: Tim Haugen, Process Inspection Service Line Director, Quest Integrity
Empirical Guidelines for Fitness-For-Service Assessment of Wicket Gates
By: Eric Scheibler, Senior Consulting Engineer and Global Hydropower Manager, Quest Integrity
Matt Clemmer, Hydro Generation Engineering Manager, Tennessee Valley Authority
As seen in Hydro Review, Volume 35, Issue 7.
A cascading wicket gate failure at one of its 1940s-era plants prompted the Tennessee Valley Authority to develop fitness-for-service evaluation criteria, using as a basis technical studies at its 124-MW Hiwassee facility.
Fired Heater Health Monitoring and Reliability Management in Challenging Times
By: Tim Hill, Principal Consulting Engineer at Quest Integrity
As seen in the March/April issue of Inspectioneering Journal.
The reliable operation of fired heaters is critical to the successful performance of any petroleum refinery. Because they operate under such extreme conditions, the life of furnace tubes is often limited by creep, corrosion, and oxidation. This article covers many essential elements for optimizing the performance and reliability of fired heaters.
Reformer Performance and Tube Life Management
As seen in the January/February 2016 issue of Nitrogen + Syngas Magazine
The steam reformer is widely accepted as being the most complex and energy intensive part of any ammonia, methanol or hydrogen plant, and as such, it is important to ensure that it is operating and maintained under the best possible conditions. This will enable the operators to produce the maximum achievable levels of product, extend reformer tube lives and increase energy efficiency.
Inspecting Fired Heaters with Plug Headers: Obtaining Complete Data to Maximize Life
By: Quest Integrity
As featured in Hydrocarbon Processing.
Recent advances in ultrasonic-based intelligent pig technology allows for the inspection of fired heater coils that include plug headers, without requiring costly coil modifications such as radial or deflector inserts.
How to Assess Pipeline Anomalies and Effectively Prioritise Pipeline-Integrity Digs
By: Ian Smith, Senior Consulting Engineer, Quest Integrity
As seen in the December 2014 issue of Pipelines International
Quest Integrity Group was recently contracted by the pipeline-integrity department of an offshore offloading facility to perform an ultrasonic in-line inspection of a 4 inch pipeline. By employing advanced engineering technology, the company was able to reduce the integrity department’s pipeline-integrity digs from 16 to three, saving time and money.
Effective Integrity Management Programs for Steam Reformers
By: Kelsey Hevner,Technical Advisor - Syngas at Quest Integrity Group
As seen in the Nov-Dec 2014 issue of Inspectioneering Journal
An effective integrity management program for steam reformers that focuses on tube integrity encompasses these essential parts: inspection, data analysis, and remaining life assessment.
Achieving a Comprehensive Fired Heater Health Monitoring Program
By: Tim Hill, Principal Consulting Engineer, Quest Integrity
As seen in the September/October 2014 edition of Inspectioneering Journal
IR thermometry is an excellent diagnostic tool for detecting tube hot spots from internal fouling or non-uniform heat distribution in fired heaters, but to ensure the full capability of IR thermometry, operators should employ the right instruments for the job and implement a proven methodology to measure accurate temperatures in a repeatable process.
Convection Section Failure Analysis and Fitness-for-Service Assessment for an Ammonia Plant
By: James R. Widrig, Quest Integrity Group and Neil Schroetlin, Dakota Gasification Company
As published by the 2014 AIChE Annual Safety in Ammonia Plants and Related Facilities Symposium
A brittle fracture failure of several HK-40 tubes occured in the convection section of an ammonia plant feed gas heater. A failure analysis and API 579 Fitness-for-Service assessment were performed to determine the mode of failure and to determine the remaining life of the HK-40 tubes. This information provided the operator with a sound basis to evaluate the business and safety risks of continued operation until long-term repairs and system improvements could be implemented.
Alleviating the Challenges of Type B Inspections
By: Ron Kessler, RDVI Business Development North America
As seen in the July-August issue of Tank Storage Magazine
Historically, inspections for IFR Type B failures required a manned entry into the vessel. A confined space entry of this nature requires extensive planning and must be supported with product transfer, supplied air and an extensive lockout/tagout (LOTO) effort. However, a new solution utilizing remote digital video inspection (RDVI) techniques is now available for single seal tanks to alleviate the challenges associated with IFR Type B inspections.
Improving Reformer Pigtail Reliability
By: Nitrogen + Syngas with contributions from Quest Integrity's Charles Thomas and Matt Smillie
As seen in the July-August 2014 issue of Nitrogen + Syngas
Previously reformer outlet pigtails were considered standalone components with a nominal 100,000 hour lifespan. With improvements in reformer tube metallurgy and manufacture, pigtails are now seen as a weak link and often require replacement before the reformer tubes and manifolds. There is a strong incentive to improve pigtail reliability and lifespan, taking into account all the key factors, from design to material selection, metallurgy, grain size distribution, quality control or inspection techniques, and all the major focal points during the life cycle of these components.
The Perfect Match, Laser Scanning and Fitness-For-Service
By: 4Z and Quest Integrity Group
As seen in the June 2014 issue of Corrosion & Materials and the July/August 2014 issue of Industrial Eye
4Z and Quest Integrity Group have recently agreed to provide integrated services, combining the laser scanning, inspection and modeling services provided by 4Z with the fitness-for-service and remaining life assessment by Quest Integrity Group.
LifeQuest™ Pipeline Version 3.1 Release
LifeQuest™ Pipeline version 3.1 was released on June 16, 2014 and includes many performance and usability updates. The most notable updates include a redesigned Dig Sheet and significantly improved Feature Spreadsheet.