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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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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 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.

Por: Rich Roberts, Vice-Presidente y Gerente General, Quest Integrity Group

Como se ve en el volume de Mayo/Junio 2014 del Inspectioneering Journal

El entender las variaciones asociadas con el análisis de vida remanente de los tubos de hornos o calentadores, es un elemento crítico para la calidad y la exactitud de sus predicciones. La siguiente entrevista con Rich Roberts, entrega respuestas a algunas de las consultas de nuestros lectores, respecto a estas herramientas pequeñas, de diseño muy especializado, con tecnología de END, que pueden inspeccionar casi el total de la superficie de un tubo, desde su interior.

By: Rich Roberts, Vice President and General Manager, Quest Integrity Group

As seen in the May/June 2014 issue of Inspectioneering Journal

Understanding the uncertainties associated with heater tube remaining life analysis is critical to the quality and accuracy of your predictions. 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 ID.

By: Stefan Papenfuss, Vice President, Pipeline Resources

As seen in the August 2014 issue of World Pipelines Magazine

This is a case study of a challenging offshore pipeline inspection project in The Netherlands that was successfully completed in one run, despite extreme low-flow conditions and a vertical launch on the platform deck.

By: Stephen Rowbotham, Quest Integrity NZL Ltd.

As seen in the Jan-March 2014 issue of Energy Generation Magazine

Critical part assessment is an integral part of a facilities equipment integrity management system. As a plant ages and personnel changes, the existence of critical spares can become a mystery, especially if systems and policies are not in place to monitor and maintain the parts.

By: Ron Kessler, RDVI Business Development North America, Quest Integrity Group

As seen in the April 2014 edition of BIC Magazine

RDVI is a minimally evasive visual inspection technique that may be safely deployed to inspect for IFR Type B failures on single seal tanks.

By: Ron Maurier, Manager – Pipeline Integrity Management, Quest Integrity Group and
Dan Revelle, Sr. Consulting Engineer, Quest Integrity Group

As seen in the March-April 2014 issue of Inspectioneering Journal

New inline inspections and integrity management systems allow operators to understand the complexities and economics of terminals’ and station’s complex aging pipeline infrastructure.

By: Ted L. Anderson, Chief Technology Officer and Ian Smith, Senior Consulting Engineer at Quest Integrity

This paper was presented at the PPIM Conference in Houston, Texas February 2014

When it comes to evaluating flaws and other damage detected by ILI and other means, much of the pipeline industry still relies on simplified assessment methodologies that don’t take advantage of all data sources and improved understanding of failure mechanisms. This paper makes the case that adopting new technologies for flaw assessment is overdue, as these technological advances will be beneficial to the industry.

By: Eric Scheibler, Consulting Engineer, Quest Integrity Group
and Susan Smelley, General Manager Hydropower Generation, TVA

Presented at the CEATI Hydro Workshop in Palm Desert, CA March 19-20, 2014

Tennessee Valley Authority (TVA) wanted to develop a long-term inspection program for critical equipment
associated with the pressure boundaries along the waterway at Raccoon Mountain Pumped Storage Facility.