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Engineering Assessment of Dents Without Dent Profiles: Prioritizing Resources and Leveraging Existing Data

Engineering Assessment of Dents without Dent Profiles: Prioritizing Resources and Leveraging Existing Data Zahra Lotfian, PhD, PE Senior Engineer, Kiefner and Associates, Inc. Houston, Texas [email protected] Noraswad Mohamad Daud Lead Engineer, Saudi Aramco Abqaiq, Saudi Arabia [email protected] Dent integrity assessments typically rely on high-resolution dent profile data to estimate strain levels and assess fatigue life. […]

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Managing Internal Corrosion Threat in Unpiggable Pipeline and Facility Deadlegs

Managing Internal Corrosion Threat in Unpiggable Pipeline and Facility Deadlegs Leslie Ward Kiefner and Associates, Inc., Houston, TX, USA Dead leads in piping systems create a high risk for internal corrosion because of their no-flow or low-flow condition. Within the Midstream industry, designs continue to include dead legs, so facility integrity management programs must manage

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What Can You Do with an Abundance of ILI Validation Data?

What Can You Do with an Abundance of ILI Validation Data? Lucinda Smart, Benjamin Wright Kiefner and Associates, Inc., Ames, USA The concept of in-line inspection (ILI) tool validation could be succinctly summarized as follows: identify dig locations based on ILI reported features, measure these features in the ditch, compare in-ditch results with ILI predictions,

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Remaining Life Assessment of Hydrogen Pipelines for Flaw Sizes Below ILI and NDE Detection Limits

Remaining Life Assessment of Hydrogen Pipelines for Flaw Sizes Below ILI and NDE Detection Limits Zahra Lotifan, Michiel Brongers  Kiefner and Associates, Inc., Houston, USA. Kiefner and Associates, Inc., Columbus, USA. While pressure cycle fatigue may not typically be a significant concern in conventional gas pipelines, introducing hydrogen changes the dynamic. This makes pressure cycle

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Considerations for Pipeline Safety and Siting

Pipeline Report for the State of Colorado: Considerations for Pipeline Safety and Siting Kiefner and Associates, Inc. worked on a pipeline study with input from Colorado Energy and Carbon Management Commission (ECMC) and Public Utilities Commission (PUC) to address pipeline safety, regulatory gaps, and recommendations for improving oversight and coordination in Colorado. The study involved

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MEGA Problem?

Mega Problem? We’d like to think we are cheaper than PHMSA fines! The new “Mega Rule” can be complex and challenging to navigate. Kiefner can provide you with straightforward answers to complex questions or audit your programs for compliance. We offer practical services for gas and hazardous liquid pipes: MAOP reconfirmation MAOP establishment for Type

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Stress Analysis

Stress Analysis Stress analysis is a process found in virtually all industries.  Exceeding a material stress capacity can directly impact the public’s safety and the environment’s quality when a material failure occurs. Through stress analysis, we can secure the integrity of structures, from bridges and office buildings to pipeline systems, by evaluating the stresses a

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Investigate Pipeline and Equipment Failures?

Investigating Pipeline and Equipment Failures Are you searching for a trusted service provider to investigate pipeline and equipment failures? Do you need traceable, verifiable, and complete (TVC) materials records per 49 CFR 192.607? Kiefner has a state-of-the-art materials analysis laboratory capable of extensive mechanical, metallographic, and corrosion testing for the Oil & Gas and process

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PHMSA Research Announcement

PHMSA Research Announcement Kiefner and Associates, Inc. (Columbus, Ohio) is honored to announce its recent 3-year, $1.5MM USD project award under PHMSA Research Announcement # 693JK323RA0001. This significant recognition comes after a rigorous selection process where we were evaluated against several esteemed competitors in pipeline integrity engineering. Kiefner’s President, Mr. L Trae J. Miller III, ESQ,

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